General Knowledge Marathon Welcome to your General Knowledge Marathon Name Email 1. Which of these statements about downshifting is true? When you downshift to descend a hill, speed up at the same time. When you downshift to take a curve, you should do so before you enter the curve. When you downshift to descend a hill, you should do so after you start down the hill. None 2. In bad weather, car drivers are more likely to tailgate CMVs. If that happens to you, what should you do? Flash your brake lights. Increase your following distance. Increase your speed. None 3. You don't want to be a distracted driver, so you read maps or use your phone only when there are no other vehicles around you. eat, drink, and smoke only on straight portions of the road. avoid using your cell phone until you reach your destination. have all your emotionally difficult conversations in the first hour of driving. None 4. After you start the engine, how long should it take for the oil pressure gauge to start to rise? Minutes Seconds It does not matter. None 5. On which of the following types of fires should you NOT use a B:C fire extinguisher? Wood Electrical Grease Gasoline None 6. Which do NOT provide extra gears on some trucks? Auxiliary transmissions Multi-speed rear axles Automatic transmissions None 7. If you must stop on a road or the shoulder of any road, you must set out your emergency warning devices within fifteen minutes ten minutes five minutes None 8. Which of these vehicles is most likely to be affected by strong winds? A straight truck loaded with cargo A tractor pulling empty doubles A tractor pulling a loaded flatbed None 9. Which of the following provide extra gears on some trucks? Auxiliary transmissions Multi-speed rear axles Both of the above None 10. Which of these is true about notifying authorities after an accident occurs? You don't have to give the police the exact location; just identify the road and the vehicles involved. You should notify the police about the accident before you do anything else. If you have a CB radio, use it to notify the police before you exit your vehicle. None 11. If you must drive in fog, use low-beam headlights and fog lights. use high-beam headlights and parking lights. use high-beam headlights and fog lights. None 12. To help you stay alert while driving, you should take cold medicine if you have a cold. take short breaks before you get drowsy. schedule trips for hours during which you are normally asleep. None 13. Which of these will help keep an engine cool in hot weather? Making sure the engine has the right amount of oil Properly adjusted V-belts Both of the above None 14. After you start the engine, which of the following will occur? In 4–5 minutes, the oil pressure gauge will rise to normal. In 10–15 minutes, the air pressure gauge will rise to normal. The coolant temperature gauge will rise to normal operating temperature. The manifold exhaust indicator gauge will rise to 180 degrees. None 15. When should you review the post-trip inspection report from the previous driver? You should review it during your pre-trip inspection. It doesn't have to be reviewed. You should review it once a week. None 16. What are the two main kinds of jackknifing for a tractor-trailer? Tractor and trailer Slippery road and dry road Empty and fully loaded None 17. If you must use a hand-held cell phone while you're driving, what should you do? Stop in a safe and legal location. Position the phone so you can see the road in front of you. Low down. None 18. The speed at which you drive should be determined by which of the following? Your visibility Your engine type Your schedule None 19. You are driving a long vehicle that makes wide turns. You want to turn left from a two-way, four-lane street onto another two-way, four-lane street. What should you do? Start to turn your vehicle after you reach the center of the intersection. Start to turn your vehicle as soon as you enter the intersection. Turn slightly left before you enter the intersection. None 20. What is the definition of "sleep debt?" The amount of sleep you get each day The cumulative effect of not getting enough sleep The money you owe hotels after resting there None 21. Which of the following can cause a skid? Over-steering Driving too fast Over-braking All of the above None 22. If you cannot avoid driving through deep puddles or flowing water, which of the following can help keep your brakes working? Turn on your brake heaters. Press both the brake pedal and the accelerator firmly after coming out of the water. Gently apply the brakes while driving through the water. None 23. If your brakes fail on a downgrade, what should you do? Look outside your vehicle for another means of slowing down. Hit some object in order to stop your vehicle. Wait until you find an escape ramp to exit the roadway. None 24. You will be placed out-of-service for 24 hours if your Blood Alcohol Concentration (BAC) is at least 0.04%. any detectable amount. at least 0.02%. None 25. What should you do if a car coming toward you at night keeps its high beams on? Look toward the right edge of your lane or the right edge of the road. Flash your high beams at the other driver. Slow down and look straight ahead in your lane. None 26. To prevent a load from shifting, there should be at least one tie-down for every ____ feet of cargo. 10 15 7 None 27. Which of the following statements about tank vehicles is true? Special skills are required to haul liquid tanks. The term "tank vehicle" refers only to those vehicles having a permanently attached tank. All tank vehicles have some sort of bulkhead or baffle. None 28. Identify component O. Spring shackle Frame reinforcement Neither of the above None 29. The braking effect of the engine is greatest when the engine is _____ the governed rpm and the transmission is in the ______ gears. above; lower near; lower below; higher None 30. What is a power take-off (PTO)? Downshifting to pass another vehicle Using engine power to run a secondary application Applying additional power to decouple a trailer Applying additional power to accelerate from a stopped position None 31. In which of these situations should you flash your brake lights? You're being tailgated. You are about to exit the road and need to slow down. A police car is approaching you from the opposite direction. None 32. Which of the following statements about vehicle fires is true? Underinflated tires will NOT cause a vehicle fire. Carrying a properly charged fire extinguisher will help prevent fires. Poor trailer ventilation can cause flammable cargo to catch fire. None 33. You should use a helper to help back your vehicle when you need to back on a curved path. when you have a trailer. when possible. None 34. If a tractor-trailer's cargo is loaded too far to the rear, the result may be poor traction on the drive wheels. damage to the steering axle. wheel lockup. None 35. You should check the following for looseness, sticking, damage, or improper settings accelerator, brakes, and clutch pedals. steering wheel and transmission controls. all of the above. None 36. Which of the following CMVs are most likely to get stuck at a raised railroad crossing? Lowboy Moving van Car carrier All of the above None 37. How do you perform progressive shifting to reduce fuel consumption? (a) When you're accelerating, upshift as soon as possible. (b) Upshift at a higher rpm when you shift into a higher gear. (c) Upshift when you reach peak horsepower. Do both (a) and (b). None 38. When driving at night, use your low beams when an oncoming vehicle is within 300 feet. 400 feet. 500 feet. None 39. Which of these is part of the steering system? Pitman arm Torque arm Bearing plate None 40. How do you correct a drive-wheel acceleration skid on a slippery road? Stop accelerating and push in the clutch. Apply the brakes. Increase power to the drive wheels. None 41. Identify component K. Vehicle frame Leaf spring Front axle hanger None 42. What happens to tar in road pavement during hot weather? Nothing happens to it. It bleeds. It becomes gummy. None 43. You're driving a concrete mixer truck (cement mixer) to your next job site. In this context, what is "slump"? The consistency of the concrete to be poured The amount by which the surface sinks under the weight of the concrete poured onto it The levelness of the surface onto which the concrete is poured The amount by which your vehicle sinks under the weight of the concrete load None 44. Which of these statements about managing space to the sides is true? Always keep your vehicle to the right side of your lane. Strong winds make it easy to stay in your lane. You should avoid traveling alongside other vehicles whenever possible. None 45. Identify component G. Steering arm Drag link Steering knuckle None 46. What can you do at an accident scene to help avoid another accident? Stay in your vehicle and do nothing until help arrives. Have a drink to calm your nerves. Leave your vehicle, do nothing, and get to higher ground. Set out warning devices to keep other vehicles from running into the accident scene. None 47. According to the Hours of Service (HOS) regulations, after ____ cumulative hours of driving without a break, you must take a 30-minute break. 6 4 10 8 None 48. If you have been drinking alcohol, then before you drive, you should take a cold shower. drink coffee. wait for it to wear off. None 49. Which of these statements about rear drive-wheel braking skids is true? The front wheels slide sideways to try to "catch up" with the rear wheels. Locked wheels usually have more traction than rolling wheels. With a tractor-trailer, the trailer can push the tractor sideways. None 50. When driving on grades, which of these is the best choice for a safe speed? Follow the vehicle in front of you. If you have a light load, go faster than you would with a heavy load. Based on your vehicle and its cargo, select a speed that is safe within the posted limit. None 51. For a first offense of driving a commercial vehicle while under the influence of alcohol or drugs, you will lose your CDL for at least 6 months. 1 year. 2 years. None 52. Which of these is the most serious reported problem with some GPS navigation devices? Their displays aren't user friendly. They can make navigation errors. They don't mount properly on the vehicle. They cost too much. None 53. Which of the following cannot be checked at the same time? Brake lights and red reflectors (on rear) Headlights and amber reflectors Brake lights, turn signals, and four-way flasher functions None 54. According to the Hours of Service (HOS) regulations, the driver of a cargo-carrying vehicle must go off duty after the driver has been on duty for 12 consecutive hours. 16 consecutive hours. 10 consecutive hours. 14 consecutive hours. None 55. If you must cross into the oncoming lane as you make a right turn, you should complete your turn without stopping. back up to allow oncoming traffic to pass. watch for oncoming traffic. None 56. Total stopping distance equals reaction distance + viewing distance + braking distance. perception distance + reaction distance + braking distance. braking distance + stopping distance. reaction distance + braking distance. None 57. What is the minimum tread depth for tires other than steering axle tires? 4/32 inch. 3/32 inch. 2/32 inch. None 58. If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance? 7 seconds 4 seconds 3 seconds 6 seconds None 59. If you have to complete a vehicle inspection report, you must sign it only when defects are noted that are certified to be repaired. only when defects are noted that are certified to not need repair. when any defects are noted. None 60. According to the state CDL handbook, when you pass another vehicle, you should NOT do which of the following? Assume that the other driver does not see you. At night, keep your high beams on as you pass the vehicle. Lightly tap your horn. None 61. When loading the cargo compartment of a vehicle, you should place heavy items on the bottom and the light items on top. Impossible to determine without more information True False None 62. Your 5-axle tractor-trailer is equipped with a sliding fifth wheel. You find that the current weights are 10,900 pounds on the steering axle and 34,600 pounds on the drive axles. Assume 500 pounds for each fifth-wheel hole. Which way should you slide the fifth wheel to balance the weight on the tractor and be compliant with federal weight limits on the tractor axles? 4 holes backward 2 holes backward 2 holes forward 4 holes forward None 63. Which of these statements about double clutching and shifting are true? Double clutching should not be done with an unsynchronized manual transmission. You can use the sound of the engine to tell you when to shift. Both of the above are true. None 64. What will happen if your blood alcohol concentration (BAC) is found to be more than zero but less than 0.04%? You will get a warning and a fine. You will be put out-of-service for 24 hours. Since it is a small amount, there will be no repercussions. None 65. Which of these statements is NOT true about backing a heavy vehicle? You should back slowly until you slightly bump into the dock. You should use a helper and communicate with hand signals. You should back and turn toward the driver's side when possible. None 66. What is the purpose of the central apron in a roundabout? To prevent you from overrunning the central island To let you pass smaller vehicles safely To provide a place to stop if your vehicle breaks down To let smaller vehicles pass your vehicle safely None 67. To prevent brake fade, you should apply constant hard pressure on the brakes. select a gear that will keep your vehicle at a safe speed on steep downgrades. coast down hills that are not very steep inclines. None 68. A major cause of fatal crashes is driving too fast for road conditions. poorly adjusted brakes. overinflated tires. None 69. Sometimes you must leave the road to avoid a hazard or emergency. When you do so, you should keep in mind which of the following? Most shoulders are not strong enough to support the weight of a large vehicle. You may be unable to re-enter the road because of the gravel used on shoulders. It is less dangerous to drive onto the shoulder than to risk a collision. None 70. Is it legal to drive a vehicle if one-fourth of the leaves in a leaf spring are broken or missing? No. It doesn't make any difference as long as you don't exceed the speed limit. Yes. None 71. You should have at least _______ of tread on your steering axle tires. 4/32 inch 2/32 inch 1/4 inch None 72. When looking ahead of your vehicle while you are driving, you should look to the right side of the road. as far as your peripheral vision can see. back and forth, near and far. None 73. The key point in balancing cargo weight is to keep the load to the front. centered. to the rear. None 74. Federal regulations do NOT require every CMV to have warning devices when stopped on the road. a fire extinguisher. a first-aid kit. None 75. Should your vehicle catch fire, pull into a service station because it has plenty of firefighting equipment. False True Impossible to determine without more information None 76. Stab braking should not be used in vehicles with air brakes. spring brakes. antilock brakes. None 77. Which of these statements about drinking alcohol are true? Statistics show that drivers who have been drinking have a much greater chance of being in a crash. Alcohol first affects judgment and self-control, which are essential for safe driving. Both of the above are true. None 78. Which of these is true about the radiator shutters and the winterfront during winter driving? The engine may overheat if the winterfront is left open. You should remove ice from the radiator shutters. The winterfront should be closed tightly. None 79. Before transporting a sealed load, you must check a small sample of whatever is inside. a picture of whatever is inside. that you don't exceed gross weight or axle weight limits. all of the above. None 80. Which of these is good thing to remember about using mirrors? Convex mirrors make things look larger and closer than they really are. There are “blind spots” that your mirrors cannot show. You should look in a mirror for several seconds at a time. None 81. Why can a damaged exhaust system be hazardous to you? Excessive noise can damage your hearing. Poisonous fumes can enter the cab or sleeping compartment. The exhaust can pollute the environment. None 82. Your brakes can get wet when you drive in heavy rain. Wet brakes can cause wheel lockup. pulling to one side. both of the above. None 83. What is hydroplaning? Driving in the snow When the tires skim over the road surface When you hit a pothole None 84. Which of these statements about driving in areas with strong winds is true? Wind is a big problem when your truck comes out of a tunnel. The lighter your vehicle, the less trouble you will have with the wind. You should drive alongside other vehicles to help break up the wind. None 85. How can you start moving without rolling backward? Set the parking brake whenever necessary. Engage the clutch before removing your foot from the brake. Apply the trailer brake hand valve. Do all of the above. None 86. You should inspect wheel bearing seals for tears. leaks. broken leaf springs. twisted axles. None 87. You are starting your vehicle from a stop. As you apply power to the drive wheels, they start to spin. You should take your foot off the accelerator. try a lower gear. press harder on the accelerator. None 88. Which of these is a danger of crossing railroad tracks on dirt roads? Your tires could sink into the dirt and not cross the tracks. You could get hung up halfway across the tracks. The ground underneath the tracks may not be stable. None 89. Converter dollies built on or after March 1, 1998 are required to have anti-lock brakes. These dollies will have a yellow malfunction lamp on the right side of the dolly. a yellow malfunction lamp in the center of the dolly. a yellow malfunction lamp on the left side of the dolly. None 90. What do the letters "GVW" stand for? Government vehicle weight Gross vehicle weight Gross variable weight None 91. Idling your engine for more than five minutes can increase emissions. waste fuel. clog fuel injectors. do all of the above. None 92. A car suddenly cuts in front of you. What should you NOT do? Signal and change lanes to avoid the car if possible. Slow down. Honk and stay close behind the car. None 93. You can see a sign on a vehicle ahead of you. The sign is a red triangle with an orange center. What does the sign tell you about the vehicle? It is hauling hazardous material. It is a slow-moving vehicle. It is a law enforcement vehicle. None 94. Before transporting a sealed load, you must check that the seal is authentic. the placard numbers match the seal numbers. the load is properly secured. None 95. What might happen if you swing wide to the left before you turn right? Someone might try to pass you on your right. Someone might try to pass you on your left. You might damage your leaf springs. All of the above might happen. None 96. At night, with your low-beam headlights on, you can see 500 feet ahead. 150 feet ahead. 350 feet ahead. 250 feet ahead. None 97. Implied consent means that when you operate a CMV on public roads, you consent to be tested for alcohol in your blood. consent to have your vehicle inspected for alcohol. understand that you may now drink alcohol before driving. None 98. To correct a drive-wheel braking skid, you should keep your foot off the clutch. turn slowly. countersteer. None 99. On which fires can you use an A:B:C fire extinguisher? Electrical fires Burning tires or cloth Both of the above None 100. Which of the following violations at railroad crossings can lead to loss of your CDL for at least 60 days? Not having sufficient space to drive all the way through without stopping Getting stuck on the tracks because of insufficient clearance Both of the above None 101. Your electronic daily log must contain which of the following entries? Total miles driven Total hours for each duty cycle Your carrier's address All of the above None 102. Which of the following statements about retarders are correct? Retarders help slow a vehicle, reducing the need for braking. When your drive wheels have poor traction, the retarder may cause them to skid. You should turn the retarder off whenever the road is wet, icy, or snow-covered. All of the above statements are correct. None 103. How can you test the parking brake? Set the parking brake at highway speeds. Move back slowly and set the parking brake. Set the parking brake and pull forward gently. None 104. Which of these is true about the radiator shutters and the winterfront? You should remove ice from the radiator shutters. The engine may overheat if the winterfront is left open. The winterfront should be closed tightly. None 105. You're driving on a curve to the left. How can you ensure that your rear wheels stay in your lane? Keep your front wheels close to the centre of your lane. Straddle your lane and the lane to your right. Keep your front wheels close to the center line of the roadway. Keep your front wheels close to the right edge of your lane. None 106. Which of the following statements about night driving is true? It's a good idea to wear dark glasses to reduce glare from headlights. Most drivers are more alert at night than during the day. Hazards are easier to see at night. Many CMV accidents occur between midnight and 6:00 a.m. None 107. In the wintertime, asphalt tends to look white and clean. grayish white. black and shiny. brownish black. None 108. Name some important steering system parts. Leaf spring, vehicle frame, and torque rod Tie rod, spindle, and pitman arm Main spring, axle, and spring shackle None 109. The road you are driving on becomes very slippery because of glare ice. What should you do? Stop driving as soon as you can safely do so. Apply the brakes often to keep the linings dry. Downshift to stop. None 110. When caring for the injured at an accident scene, which of the following should you NOT do? Move severely injured persons if there is a danger from fire or passing traffic. Allow injured persons to become chilled or overheated. If a qualified person is helping them, stay out of the way unless asked to assist. None 111. Which of these statements is true regarding the use of drugs while driving? "Speed" and other amphetamines are allowed as long as you are using the drugs to stay awake. No prescription or nonprescription drugs are allowed at any time for any reason. Prescription drugs are allowed as long as your doctor says the drugs will not affect safe driving ability. None 112. Which of the following are signs of a suspicious package? Protruding wires Oily stains on the wrapper Strange odor All of the above None 113. Which of the following statements about parking on the entrance and exit ramps is TRUE: You may park on the ramps, but not during the rush hour. Parking on the ramps is allowed. You may never park on the ramps. None 114. Tire chains should only be used on the drive wheels. should never be used on asphalt. should always be carried when driving in winter weather. None 115. Which of these statements about your overhead clearance is true? The weight of cargo can change the height of your vehicle. Paving a road does not affect the clearance height under bridges or overpasses. Warnings are always posted for low-clearance areas like bridges and overpasses. None 116. Which of these statements about certain types of cargo is true? Oversize loads can be hauled without special permits during daylight hours. Unstable loads such as hanging meat or livestock require extra caution on curves. When liquids are hauled, the tank should always be loaded completely full. None 117. Which of these statements about certain types of cargo is true? When liquids are hauled, the tank should always be loaded totally full. Heavy loads that consist of liquids in bulk do not cause handling problems. Unstable loads such as hanging meat or livestock can require extra caution on curves. None 118. When backing, which of the following is FALSE? Use a helper if possible. Back toward the driver's side if possible. Start in the proper position. Use the highest reverse gear. None 119. One can recognize hazardous materials by looking at the container's shape. color. label. None 120. In FMCSA's Compliance, Safety, Accountability (CSA) program, all of the following are Behavior Analysis and Safety Improvement Categories (BASICs) EXCEPT Hours of Service compliance. vehicle maintenance. driver fitness. on-time performance. None 121. When is an engine retarder most efficient? Higher rpm and lower vehicle speeds Lower rpm and lower vehicle speeds Lower rpm and higher vehicle speeds Higher rpm and higher vehicle speeds None 122. Which piece of emergency equipment must be carried in a CMV? First-aid kit Warning devices Seat belt cutter None 123. Which of these is especially true about your tires in hot weather? If a tire is too hot to touch, you should hose it down with water. You should check tire mounting and air pressure before driving. You should bleed a small amount of air to keep tire pressure steady. None 124. Which of these statements about hazardous materials is true? Trucks carrying hazardous materials are allowed on all public roads if the trucks are loaded correctly. All hazardous materials present a health and safety threat. Every truck carrying any amount of hazardous materials must have placards. None 125. It takes the body about ____ hours to get rid of the alcohol in four alcoholic drinks. 4 6 2 None 126. Which of the following best describes how sleep debt can be paid off? It can be overcome with willpower and stimulants. It can only be paid off by sleeping. It will go away by itself over a period of time. None 127. Where should you keep the shipping papers? Locked in the glove compartment Under the driver's seat In a pouch on the driver's door None 128. Which of the following should you NOT do if you experience a tire failure? Stay off the brake pedal. Be aware that a tire has failed. Brake hard and immediately. Hold the steering wheel firmly. None 129. You should take a break from driving every 7 hours. whenever you become drowsy. every 5 hours. None 130. How can you determine if your vehicle is equipped with an antilock braking system (ABS)? Check for a yellow ABS malfunction lamp on the instrument panel. Look for wheel speed sensor wires that are coming from the rear of your brakes. Check if your vehicle was manufactured after March 1, 1998. (Such vehicles are required to have the panel light.) All of the above can work. None 131. If you are confronted by an aggressive driver, what is the most important thing you should do? Signal to the driver that you made a mistake. Stand your ground. Get out of the driver's way. None 132. To transport cargo safely, which of the following are you NOT responsible for? Recognizing possible overloads Making sure that cargo is properly secured Ensuring the safety of the cargo Ensuring the freshness of sealed cargo None 133. In Ohio, if you are convicted of operating a CMV while under the influence of alcohol or drugs (OVI) and this was your first such offense, you will most likely face probation for a period of one year. a fine of $500. at least a one-year suspension of your CDL. None 134. During a pre-trip inspection, you discover an exhaust leak or power steering leak. You should report the problem and make arrangements to use another vehicle. go home because you shouldn't drive the vehicle this way. note the problem and continue on your route. None 135. You'll be driving a tractor-trailer with tandem drive axles and tandem trailer axles. You're installing tire chains on the vehicle to cope with the bad winter weather. Which tires are legally required to be chained? Both sides of one drive axle only Both sides of both drive axles Both sides of one drive axle and both sides of one trailer axle It depends on the state. None 136. Identify component C. Pitman arm Steering arm Steering knuckle None 137. According to the Ohio Commercial Driver License Manual, why should you limit the use of your horn? The horn is not a good way to let others know you're there. It wears down the battery. It can startle other drivers. None 138. When getting in to start the engine and inspect inside the cab, you must make sure the parking brake is on and put the gearshift in neutral (or park if automatic). start the engine and listen for unusual noises. do both of the above. None 139. Why should you signal continuously while turning? Because you need both hands on the wheel to turn safely Because it is usually illegal to turn off your signal before starting a turn For both of the above reasons None 140. In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. To change lanes, you should assume the car left the roadway and change lanes as usual. ease into the other lane slowly so the other car can get out of the way. wait until you are sure the car isn't in your blind spot. None 141. What is the minimum tread depth for front tires? 2/32 inch 4/32 inch 1/32 inch None 142. The tendency for long commercial vehicles to swing wide on turns is called hydroplaning. off-tracking. fishtailing. None 143. Which of these statements about double clutching is true? You use the clutch to shift into the next gear but not to shift out of the current gear. When you upshift, the engine speed should increase to the rpm required for the next gear. You use the clutch to shift out of the current gear but not to shift into the next gear. When you upshift, the engine speed should decrease to the rpm required for the next gear. None 144. Which of these statements about cold-weather driving is true? Exhaust system leaks are less dangerous in cold weather. Windshield washer antifreeze should be used. An engine cannot overheat when the weather is very cold. None 145. Your vehicle is equipped with hydraulic brakes. At a roadside inspection, your vehicle will be put out of service if the fluid level in any master cylinder reservoir is less than 1/8 full. 1/2 full. full. 1/4 full. None 146. Hazardous materials placards are signs that help tax collectors determine how much to tax a hazardous cargo. signs on the inside of the vehicle that remind the driver of what he or she is carrying. signs on the outside of the vehicle that identify the hazard class of the cargo. signs that warn the public to stay at least 1,000 feet from the vehicle. None 147. Cargo inspections should be performed after every break you take while driving. are usually not your responsibility. are needed only if your vehicle is placarded for hazardous materials. None 148. The road you are driving on becomes very slippery from glare ice. Which of the following should you do? Downshift to stop. Keep varying your speed by accelerating and braking. Stop driving as soon as you can safely do so. None 149. It has just reached freezing. Which of the following areas may be slippery? A shaded area A bridge A wet-looking road All of the above None 150. Before transporting a sealed load, you must check which of the following? Your vehicle does not exceed weight restrictions. Your vehicle does not exceed height restrictions. The cargo is not past its expiration date. The cargo is secured inside its containers. None 151. Rapid acceleration can increase your fuel consumption by as much as 40%. 20%. 10%. 30%. None 152. You should try to park your vehicle so that your vehicle is protected by trees or some overhang. you can pull forward when you leave. there is at least one curb next to your vehicle. None 153. You'll be driving a 5-axle tractor-trailer. The distance from the steering axle to the rear tandem trailer axle is 51 feet. The distance from the front drive axle to the rear tandem trailer axle is 36 feet. Using the federal Bridge Gross Weight Formula, what is the maximum combined weight that can be carried by the drive axles and trailer axles? 80,000 pounds 46,000 pounds 66,000 pounds 51,000 pounds None 154. You're behind the wheel of a tractor-trailer. When starting to move up a hill from a stop, you should keep the trailer brake hand valve applied until you reach 20 mph. engage the clutch and accelerate quickly. release the parking brake as you apply engine power. None 155. Which of these statements about managing space is true? When the road is slippery, you should keep much more space in front of your vehicle. Many accidents are caused by drivers keeping too much space in front of their vehicles. Smaller vehicles require more space to stop than larger ones. None 156. You must drive on a slippery road. Which of these is a good thing to do in such a situation? Use a smaller following distance. Slow down gradually. Apply the brakes during turns. None 157. Which of these is not a danger when an automatic transmission is forced into a lower gear at a high speed? Loss of engine braking effect Loss of steering control Damage to the transmission None 158. Which of these statements about cargo loading is true? The legal maximum weight allowed by a state can be considered safe for all driving conditions. State laws dictate legal weight limits. If the shipper loads the cargo, the driver is not responsible for overloading. None 159. Which of these statements about tires and hot-weather driving is true? When driving in very hot weather, you should inspect your tires every two hours or every 100 miles. If a tire is too hot to touch, you should drive on it to cool it off. The air pressure of a tire decreases as the temperature of the tire increases. None 160. When crossing or entering traffic with a heavy vehicle, you should remember which of the following? Because heavy vehicles are easy to see, you can count on other drivers to move out of your way or slow down for you. Heavy vehicles need larger gaps in traffic than cars. The best way to cross traffic is to pull the vehicle partway across the road and block one lane while waiting for the other lane to clear. None 161. Loads that are over-length, over-width, or overweight may require flashing lights. driving limited to certain times. both of the above None 162. When should you downshift an automatic transmission? When going up grades When going around curves When going down grades None 163. If you are involved in a collision but are not seriously injured, what must you do? Protect the area and notify the authorities. Care for the injured and collect required information. Do both of the above. None 164. Your vehicle has tandem drive axles and is equipped with an inter-axle differential. You should NOT engage it if the wheels are different. the vehicle is stopped. a wheel is spinning. you're carrying a load. None 165. You are checking your brakes and suspension system during a pre-trip inspection. Which of these statements is true? Spring hangers that are cracked but still tight are not dangerous. Brake shoes should not have oil, grease, or brake fluid on them. Just one missing leaf spring is not dangerous. None 166. Which is NOT one of the four basic skills that operating a commercial motor vehicle requires? Backing safely Accelerating Steering First-aid certification None 167. What is the first thing you should try to do if your brakes fail while you're driving downhill? Call or radio for help. Get off the road as soon as possible. Shut off the engine. None 168. What things should you check during a trip? Watch gauges and mirrors and use your senses to check for problems. Check your maps and directions and the weather report. Check load stability by slightly swerving left to right in your lane. None 169. If you have a heavy load that is slowing you down on an upgrade, you should exit the roadway until traffic is lighter. shift into a lower gear. drive on the shoulder so that others can pass you easily. None 170. Communication means talking with law enforcement officers. talking with other truckers on the CB radio. letting other road users know your intentions. None 171. Which of these statements is true about speed management? Shady parts of the road allow better traction than open areas. On slippery roads, it takes longer to stop and it is harder to turn without skidding. Road surfaces will freeze before bridges. None 172. Your tractor-trailer is equipped with an 18-speed manual transmission. To reach gear 7L, the range selector should be in _____, and the splitter should be in _____. LOW; LOW HIGH; LOW LOW; HIGH HIGH; HIGH None 173. Which of the following is NOT characteristic of a front tire failure? Steering wheel twisting Difficult steering Vehicle fishtailing None 174. Which of these is NOT caused by rough acceleration? Damage to the coupling Mechanical damage Tire damage None 175. A combination vehicle's stopping distance is longest when it is empty. fully loaded. almost fully loaded. None 176. What is the definition of a hazard? A road user or road condition that presents a possible danger Something you can easily avoid Something you can safely ignore Something you must stop for None 177. There are certain types of vehicle inspections, including post-trip, pre-trip, and en-route. general, maintenance, and physical. all of the above. None 178. Identify component E. Drag link Steering knuckle Pitman arm None 179. What should you do first when there's a fire? Contain the fire Cover the fire Report the fire None 180. Which of these can cause a fire? Loose fuel connections Underinflated tires Both of the above None 181. What is a common cause of tire fires? Underinflated tires Overinflated tires Cold tires All of the above None 182. If the engine is not overheated, is it completely safe to remove the radiator cap? Yes, as long as there is no overflow. Yes, as long as the radiator isn't damaged. Yes. No. None 183. You should use your mirrors to check the condition of your tires. traffic gaps when merging. both of the above. None 184. Which of the following can be tested in a moving vehicle? Service brake Parking brake Hydraulic brake None 185. At a roadside inspection, your vehicle will be put out-of-service if _____ of its brakes are found to be defective. at least 30% at least 20% any at least 10% None 186. Serious traffic violations that can cause your CDL to be suspended include tailgating and reckless driving. excessive speeding and erratic lane changes. all of the above. None 187. Identify component F. Steering gear box Steering column Tie rod None 188. What should the wheel bearing seals be checked for? The color of paint used on the cover The hub oil level and possible leaks Cleanliness None 189. Your employer told you to transport some cargo in a manner that you believed was unsafe. You refused, expressing your safety concerns. As a result, your employer took retaliatory action against you. What should you do? Let it go and just transport the cargo. Call the police. File a complaint with OSHA. File a complaint with FMCSA. None 190. Your total stopping distance equals the sum of your attention distance, reaction distance, and slowing distance. observation distance, reaction distance, and braking distance. perception distance, reaction distance, and braking distance. None 191. What does emergency braking mean? Responding to a hazard by slowing your vehicle Using your vehicle's emergency brake Pressing the brake pedal as hard as you can None 192. When the roads are slippery, you should make turns as gently as possible. decrease the distance that you look ahead of your vehicle. stop and test the traction while going up hills. None 193. When driving in work zones, you should pull over. use your four-way flashers and brake lights to warn others. slow down only if workers are present. None 194. When driving in an area with few streetlights on a clear night, if you cannot see well with your headlights, you should find another route that is better lit. use your high beams when legal and keep your interior lights off. turn your interior lights on. None 195. According to the Hours of Service (HOS) regulations, if you encounter adverse driving conditions during your trip that prevent you from completing your trip within the allowed driving time, you may extend your allowed driving time by an additional 4 hours. 3 hours. hour. 2 hours. None 196. Which of these are proper uses of your brake lights? Flashing your brake lights to warn someone behind you that you are going to stop on the road Flashing your brake lights to warn someone behind you of a hazard that will require slowing down Both of the above None 197. Stab braking involves releasing the brakes only after the wheels lock up. involves steady pressure on the brake pedal without locking the wheels. should never be used. None 198. If you do not have a CB radio, what is the first thing you should do at an accident scene? Flag down help. Protect the accident scene. Clear the area. None 199. How long does it take a typical tractor-trailer to clear a double railroad track? More than 15 seconds More than 30 seconds 10 seconds 14 seconds None 200. While you're driving, ice builds up on your wipers and they no longer clean the windshield. What should you do? Keep driving and spray the windshield with washer fluid. Stop safely and fix the problem. Keep driving and turn your defroster on. Slow down until you can see again. None 201. You should turn on your four-way flashers whenever you stop on the roadway. drive through the mountains. cross railway tracks. None 202. When you start to drive down a steep downgrade, which of the following should influence your choice of speed? The steepness of the grade The road conditions The total weight of your vehicle and its cargo All of the above None 203. What is a "pull-up?" A maneuver performed by a tow truck to pick up an overturned truck Pulling forward while backing a trailer to reposition it When pulling off the shoulder, pulling up until the trailer is straight None 204. Which of these can cause the vehicle to skid? Overacceleration Not enough weight on the front axle Both of the above None 205. What should you do when you see a hazard in the roadway ahead of you? Use your four-way flashers or brake lights to warn others. Swerve around it and get back in your lane. Stop quickly and pull to the side of the road. None 206. How does the height of a vehicle's center of gravity affect safe handling? Trucks with a high center of gravity can roll over at the posted speed limit for a curve. Trucks with a high center of gravity can get stuck on railroad tracks. Trucks with a high center of gravity can stop faster. None 207. While driving at highway speeds, you should look ahead 25 feet. 1/4 mile. 1 mile. None 208. If you feel drowsy while driving, what should you do? Drink a cup of coffee. Open the windows for some fresh air. Pull off the road and get some sleep. Drink energy drinks. None 209. Bridge formulas specify less maximum axle weight for axles that are close together. the same maximum axle weight for any axle spacing. less maximum axle weight for axles that are far apart. None 210. How does "bleeding tar" affect the road surface and driving conditions? It makes the road slippery. It does not affect the road surface or driving conditions. It is very sticky and slows down your vehicle. None 211. If you must stop your vehicle beyond a curve that hides your vehicle from other drivers within 500 feet, place your warning devices 100 feet in front of, 10 feet behind, and 100 feet behind your vehicle. 10 feet behind and up to 100 feet behind your vehicle. 10 feet behind and up to 500 feet behind your vehicle. None 212. You do not have a Hazardous Materials endorsement on your CDL. You are asked to deliver hazardous materials in a placarded vehicle. You should refuse to haul the load. haul the load but only to the nearest place where a driver with a Hazardous Materials Endorsement can take over. take the placards off the vehicle. None 213. You should put the starter switch key into your pocket while you perform the pre-trip inspection because someone could start and move the truck. someone could steal the truck. it could damage the starting mechanism. any of the above could occur. None 214. What should you do if you get stuck on the railroad tracks? Get out of your vehicle and away from the tracks. Stay in your vehicle. Scream for help. None 215. Which of the following are true about an automated manual transmission (AMT)? There is no shifter stick. There may be no clutch pedal. There is no torque converter. All of the above are true. None 216. When a doctor prescribes medication for you and you know you will be driving, you should take the medication as well as other medications to keep you alert. take the medication but stop taking it if you notice it is affecting your driving. ask the doctor if the medication will affect your ability to drive. None 217. What are important reasons for performing a vehicle inspection? A vehicle defect that is found during inspection and corrected can prevent problems later. Federal and state regulations require you to inspect your vehicle. Both of the above are important reasons. None 218. The most important hand signal that you and a helper should agree on is “Stop.” “Turn up the music.” “Faster.” “Go.” None 219. Underloaded front axles can cause poor traction. unsafe steering. both of the above. None 220. In winter, which of these systems should receive extra attention during an inspection? Steering Exhaust Suspension None 221. How far ahead should you look while driving? 7 to 12 seconds 12 to 15 seconds 10 to 12 seconds 5 to 10 seconds None 222. Name some suspension system defects. Leaking shock absorbers Broken leaves in a leaf spring and a cracked or broken spring hanger Both of the above None 223. If you park at the side of the road, you should keep your vehicle's taillights on. set out your emergency warning devices within 30 minutes. turn on your four-way flashers. None 224. If you must take emergency action to deal with a hazard, you should remember which of the following? Stopping is always the safest thing to do. You can almost always stop more quickly than you can turn. To turn quickly, keep a firm grip on the steering wheel. None 225. When should you check your mirrors for a lane change? Before and after signaling the lane change After starting and after completing the lane change Both of the above None 226. You are driving at 50 mph on a straight, level highway. There are no vehicles in front of you. Suddenly a tire blows out in your vehicle. What should you do first? Stay off the brake until your vehicle has slowed down. Begin light braking. None 227. Identify component A. Tie rod Spindle Steering arm None 228. ABS uses computers and sensors to determine the condition of the brakes. the condition of the roadway surface. when a wheel may lock up. None 229. What is black ice? Rain and snow mixed A thin layer of ice clear enough that you can see the road underneath it Dirty snow None 230. If you must stop your vehicle beyond a curve that hides your vehicle from other drivers within 500 feet, place a reflective triangle up to 500 feet behind the vehicle. as far back as necessary to warn other drivers. up to 200 feet behind the vehicle. None 231. Your emergency kit does NOT need to include a fire extinguisher. a spare jacket. spare electrical fuses. warning devices. None 232. Which of the following is true about escape ramps? They can be used by any vehicle whose brakes have failed. They help slow a vehicle so it can get back on the road safely. They cannot be used by tractors pulling doubles or triples. None 233. Which of these statements about speed management are true? On packed snow, you should reduce your speed by about one-half. On a wet road, you should reduce your speed by about one-third. Both of the above statements are true. None 234. In a four-stroke diesel engine, fuel is injected into the cylinder during the intake stroke. exhaust stroke. compression stroke. power stroke. None 235. When approaching a traffic light that has been green for a long time, you should continue at your current speed. accelerate so you get through the light. start to slow down so you will be ready to stop. None 236. You are starting your vehicle in motion from a stop. As you apply power to the drive wheels, they start to spin. What should you do? Take your foot off the accelerator. Take your foot off the accelerator and apply the brakes. Try a lower gear. None 237. Each lane on an interstate highway is at least _______ wide. 14 feet 10 feet 12 feet 11 feet None 238. Hydroplaning cannot occur while driving through a puddle. only occurs at speeds above 50 mph. is more likely when the tire pressures are low. None 239. While driving at night, which lights should you use as often as you can? Novelty lights Low beams High beams Emergency flashers None 240. An antilock braking system (ABS) will keep your wheels from locking when you brake hard. shorten your stopping distance. increase your vehicle's stopping power. let you drive faster. None 241. Before you drive in the mountains, what should you do? Learn the escape ramp locations on your route. Unhook your steering axle brakes. Carry tire chains in your vehicle. None 242. If you're driving a tractor-trailer down a long, steep downgrade, you should use controlled braking. use only your trailer brakes. use the braking effect of the engine. None 243. Which of these is NOT a brake check you normally do during your walkaround inspection? Hydraulic brake cylinder leaks Condition of hoses Brake adjustment None 244. At a truck stop, you notice a young woman looking forlorn. What are some signs that she might be a victim of human trafficking? She seems unaware of her whereabouts. She is not allowed to speak for herself. Trucks are flashing their headlights. All of the above are possible signs. None 245. The best way to stop all skids is to countersteer and accelerate. restore traction to the tires. use stab or controlled braking. None 246. To prevent skidding, you should turn the wheel sharply for all turns. adjust to conditions while driving. brake hard at all stops. None 247. If a straight truck goes into a front-wheel skid, it will slide sideways and spin out. go straight ahead even if the steering wheel is turned. go straight ahead but turn if the steering wheel is turned. None 248. The distance your vehicle travels from the time your eyes see a hazard to the time your brain recognizes it is called _______ distance. braking perception reaction None 249. Which of the following is a key steering component? Torque rod Gear box Bearing plate Leaf spring None 250. What kinds of things should you inspect during a trip? Gauges, exhaust, lights, cargo securement, and radio Gauges, brakes, lights, pumps, and hoses Gauges, brakes, lights, tires, and cargo securement None 251. If you must drive in fog, what should you do? Turn on your 4-way flashers. Don’t stop along the side of the road. Slow down before you enter fog. All of the above None 252. Which of these statements about using the steering wheel is true? If you do not hold the steering wheel with both hands, it could pull out of your grasp. Use both hands only when attempting a difficult turn. Once you reach a cruising speed on a highway, you can drive with one hand. None 253. When transporting cargo, how often should you check the securement of the cargo? Within the first 50 miles of the trip and then every 150 miles or every 3 hours, whichever comes first Within the first 25 miles of the trip and then every 100 miles or every 2 hours, whichever comes first Within the first 50 miles of the trip and then every 100 miles or every 2 hours, whichever comes first None 254. Which of these statements about inspection of suspension components is true? Axle mounts should be checked at each point where they are secured to the vehicle frame and axle. Suspension components should be checked on all axles, except for the power unit. Distorted coil springs are safe as long as they are not broken. None 255. A load that is over-length, over-width, or overweight requires a special transit permit. requires a police escort or pilot vehicles. can only be transported on freeways. None 256. If your brakes get wet on a rainy day, what can result? Hydroplaning Reduced braking power Excessive brake wear None 257. Where or when should you test the stopping action of your service brakes? At a special brake testing center only In the parking lot when the vehicle is not moving When the vehicle is moving at about 5 mph None 258. When steering to avoid a crash, you should not turn any more than necessary to clear what is in your way. steer with one hand so that you can turn the wheel more quickly. apply the brakes while turning. None 259. You are checking your tires for a pre-trip inspection. Which of these statements is true? Tires of mismatched sizes should not be used on the same vehicle. A tread depth of 2/32 inch is safe for the front tires. Radial and bias-ply tires can be used together on the same vehicle. None 260. Which of the following is NOT something you should check during a trip? Tires Test messages Cargo and cargo covers Mirrors None 261. To fight a fire, you should aim the fire extinguisher at the top of the flames so that the chemicals will fall onto the fire. Impossible to determine without more information False True None 262. Overloading can have a bad effect on steering. speed control. both of the above. None 263. In which of the following situations should you use your horn? When you're changing lanes To greet a friend To help you avoid a collision To get a pedestrian to move out of your way None 264. What are two ways to know when to upshift? Use engine speed (rpm) and road speed (mph). Use your watch and engine sounds. Use engine speed (rpm) and road signs. None 265. At a roadside inspection, your vehicle will be put out of service if a tire leak is found and the tire has lost 50% or more of its rated pressure. the tire is already flat. the leak can be felt or heard. any of the above are true. None 266. Identify component J. Bearing plate Vehicle frame Torque rod None 267. Trucks and buses are subject to certain laws, restrictions, and regulations. Which of these statements is true? Laws and restrictions can vary from place to place. Federal regulations apply only to trucks and buses driven at least 50 miles on a trip. County and city laws do not apply to trucks and buses engaged in interstate commerce. None 268. Which of the following should you NOT do in the event of hydraulic brake failure? Upshift. Use the parking or emergency brake. Pump the brakes. None 269. What should you do if your vehicle hydroplanes? Countersteer hard. Accelerate slightly. Release the accelerator. None 270. Optional safety equipment may include emergency phone numbers, tire chains, and tire changing equipment. warning devices. a charged fire extinguisher. None 271. In the event of a rear tire failure, dual rear tires will usually prevent fishtailing. may prevent vibration or thumping. will allow you to brake immediately. None 272. Under federal regulations, which of these newly manufactured buses are required to be equipped with electronic stability control (ESC)? Coach buses School buses Transit buses All of the above None 273. If you're not sure what to use to put out a hazardous materials fire, what should you do? Use dirt. Use water. Wait for qualified firefighters. None 274. You are driving a new truck with a manual transmission. To take a long, steep downhill grade, use a lower gear than you would use to climb the hill. use the same gear you would use to climb the hill. shift into neutral and coast. None 275. What are some advantages of going right instead of left around an obstacle? Someone may be passing to the left. You can avoid a head-on collision. Both of the above are advantages. None 276. Which of these will happen if a tire blows out at highway speeds? A rapid drop in speed to below 20 mph A vibrating feeling A loud hissing sound None 277. An en-route inspection should include checking for tire overheating and brake overheating. that the cargo is properly secured. both of the above. None 278. A vehicle is loaded with most of the weight on the steering axle. What may result? Too little traction on the steering axle Hard steering and possible damage to the tires Better handling None 279. When roads are slippery, you should make turns as carefully as possible. decrease the distance that you look ahead of your vehicle. stop and test the traction while going up hills. None 280. Which of the following may be a sign of tire failure? Vehicle fishtailing Vehicle thumping or vibrating Both of the above None 281. Is it safe to add coolant to a coolant recovery tank or coolant overflow tank while the engine is at operating temperature? Yes, but only if the coolant recovery container is part of the pressurized system. Yes, as long as the engine isn't overheated. No, never. None 282. Escape ramps can prevent damage to the vehicle. prevent injury to the driver and passengers. do both of the above. None 283. Your vehicle has hydraulic brakes. If the brakes fail while you're driving, what should you try? Press the brake pedal as hard as you can. Shift into neutral and apply the parking brake. Pump the brake pedal. None 284. You are cited for speeding in your personal car, and you pay the speeding ticket rather than go to court. You must report this to your employer within 14 days. 30 days. 3 days. None 285. Under federal regulations, to transport logs, which of the following must be true? The logs must be transported in a crib-type log trailer. The vehicle must be equipped with a means of cradling the logs. Tiedowns must be used. All of the above are true. None 286. What does "axle weight" mean? The weight transmitted to the tires from the axle The weight transmitted to the ground by one axle or one set of axles Both of the above None 287. How should you react to an aggressive driver? Eat a snack to raise your blood sugar level. Give the driver the benefit of the doubt. Smoke a cigarette to relax. None 288. Your truck is in a traffic emergency and may collide with another vehicle if you do not take action. Which of these is a good rule to remember at such a time? To miss an obstacle, you can almost always turn more quickly than you can stop. Stopping is always the safest action in a traffic emergency. Leaving the road is more risky than hitting another vehicle. None 289. What are the regulations on the height of splash guards (mud flaps)? They must be no more than 15 inches above the ground when the vehicle is completely unloaded. They must be no more than 8 inches above the ground when the vehicle is fully loaded. It depends on the state. None 290. When inspecting mirrors and windshields for cracks, dirt, illegal stickers, and other obstructions to your vision, you should look in the mirror to see if you look good. not worry about any of it. clean and adjust as necessary. None 291. What are the three rules for using your turn signals? 1. Signal when changing lanes. 2. Signal when turning corners. 3. Make sure the signal turns off after the turn is completed. 1. Signal early. 2. Signal continuously. 3. Make sure the signal turns off after the turn is completed. 1. Signal early. 2. Signal continuously. 3. Use hand-and-arm signals only when it’s raining. None 292. Which of these statements is true about drugs? Certain prescription drugs are allowed to reduce fatigue. A driver can use any prescription drug while driving. The use of alcohol or drugs can lead to a collision or an arrest. None 293. According to the Hours of Service (HOS) regulations, the driver of a passenger-carrying vehicle must not drive for more than _______ while on duty. 8 hours 9 hours 6 hours 10 hours None 294. Which of these is the biggest drawback of today's fully automatic (NOT automated manual) transmissions? Unproven, experimental technology High cost Hesitation when starting off Difficult to operate None 295. What effects can wet brakes cause? Brakes can grab or become weak. Your foot can get tired. Brakes can work better. None 296. How often must you stop to check your cargo while on the road? Every three hours or 150 miles After each break you take Within the first 50 miles All of the above None 297. You are driving a 40-foot vehicle at 50 mph. Driving conditions are ideal (dry pavement, good visibility). What is the least amount of space that you should keep in front of your vehicle to be safe? 3 seconds 5 seconds 4 seconds None 298. Why can tourists be hazards? They often drive rental cars. Law enforcement officers will not give them a ticket. They may drive slowly and make sudden stops or lane changes. None 299. Which of the following is true about hours of service regulations? A driver must take a break after every 3 cumulative hours of driving time. A driver can spend only 6 hours of an off-duty period in the vehicle's sleeper berth. On-duty time must be balanced with time for rest. None 300. Which of the following statements about downshifting is true? When double clutching, let the engine slow down while the transmission is in neutral and the clutch is released. Downshift after you've entered a curve. Downshift before you enter a curve. None 301. What is the major purpose of Diesel Exhaust Fluid (DEF)? To help keep the exhaust system clean To reduce emissions of carbon monoxide (CO) To reduce emissions of nitrogen oxides (NOx) To lower the temperature of the exhaust None 302. Which of these is the proper way to change lanes? Signal just as you begin to change lanes, and drift over slowly. Signal before you change lanes, and move over quickly. Signal before you change lanes, and change lanes slowly and smoothly. None 303. It is important to shift gears correctly to keep the engine oil flowing. control of the vehicle. the engine warm. None 304. You're driving a tractor-trailer on a slick road surface. Suddenly, excessive braking locks your drive wheels. Your tractor starts to skid, and the trailer starts to push the tractor sideways. You must act to correct the skid before the trailer swings out approximately 30 degrees. 45 degrees. 15 degrees. 50 degrees. None 305. Which of these statements about drinking alcohol are true? Alcohol first affects a person's judgment and self-control. A driver can lose his or her license for driving while drunk. Both of the above are true. None 306. Driving under the influence of a drug that causes you to drive unsafely is permitted if it is prescribed by a doctor. against the law. permitted if it is a diet or cold medication. None 307. To avoid rolling backward when you start your vehicle, you should partly engage the clutch before you take your right foot off the brake. engage the clutch very quickly. stop on a flat area. None 308. Containerized loads should come with their own tie-down devices. are typically used for freight carried partway by rail or ship. do not need to be inspected or secured by the driver. None 309. What will help a drunk sober up? Coffee Time A glass of water Fresh air None 310. In a moving vehicle, you should wear your seatbelt only when travelling on a highway. at all times. only when you are driving None 311. In which of these situations should you consider turning off your vehicle's retarder? When the road is clear and dry When driving through mountainous areas Under wet or icy road conditions None 312. Which of the following statements about hazardous materials placards is true? They must be affixed to every vehicle transporting hazardous materials. They must be affixed to all four sides of a vehicle. They must be affixed only to the front and rear of a vehicle. None 313. Which of the following is most likely to cause a vehicle fire? Flammable cargo with proper ventilation Driver smoking in a rest area Short circuits and loose connections Spilled fuel cleaned up quickly and properly None 314. You must park on the side of a level, straight, undivided two-lane road. Where should you place the reflective triangles? One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet in front of the vehicle One within 10 feet of the rear of the vehicle, one about 100 feet to the rear, and one about 200 feet to the rear One about 50 feet to the rear of the vehicle, one about 100 feet to the rear, and one about 100 feet in front of the vehicle None 315. Which of the following will NOT help you be more fuel efficient? Idling the engine for less than 10 seconds Planning ahead Obeying the posted speed limit Quick starts and hard stops None 316. In a combination vehicle, wet brakes increase the risk of overheated brakes. jackknifing. hydroplaning at any speed. hydroplaning at speeds over 30 mph. None 317. Most skids will not happen with radial tires. are caused by driving too fast or trying to stop too quickly. happen on ice None 318. Extra care may be needed to keep your vehicle centered in your lane, because commercial vehicles tend to sway from side to side. often require a lot of room to change lanes. are often wider than other vehicles. None 319. Driving on snow-covered roads can increase your fuel consumption by as much as 40%. 10%. 30%. 20%. None 320. Which of these is important to check before driving in the winter? Tires Exhaust Both of the above None 321. One gallon of diesel fuel weighs approximately 9 pounds. 8 pounds. 7 pounds. 6 pounds. None 322. You may get hung up on railroad tracks if the tracks have a steep approach. you cross double tracks too slowly. you try to shift gears when crossing. None 323. To secure a metal coil weighing at least 5,000 pounds with its eye vertical on a flatbed truck, at least _____ tiedowns must be used. 2 4 1 3 None 324. When you park your vehicle and shut off the engine, you should usually turn the steering wheel as far to the left as you can. apply the parking brake. leave it in gear (if it has a manual transmission). None 325. How far ahead should you look while driving? 15–30 seconds 12–15 seconds 5–10 seconds None 326. You're driving a loaded truck. How can you maintain your personal safety at truck stops? Don't discuss your cargo with others. Lock your doors. Hide your valuables from view. Do all of the above. None 327. Under federal regulations, on any interstate highway, the maximum allowed gross weight on the tandem axles of a 5-axle tractor-trailer is 24,000 pounds. 80,000 pounds. 20,000 pounds. 34,000 pounds. None 328. Which of these statements about downshifting for a long downhill grade is true? Downshifting should not be done with automatic transmissions. The proper time to downshift is just after the vehicle starts down the hill. Downshifting allows engine compression and friction to help the brakes slow the vehicle. None 329. While you're driving, if your reaction time increases by _______, your chances of a crash will double. ¼ second 1 second ½ second None 330. Cargo that can shift should have at least ____ tie-down(s). 2 1 3 None 331. Which of these statements is true about warning other drivers of a stopped vehicle? Keep the vehicle's taillights on to warn other drivers. Move the rear reflective triangle back if the driver's vision is obscured to within 500 feet. Set out your emergency warning devices within five minutes. None 332. Which of these is a good rule to follow when using a fire extinguisher? Keep as close to the fire as possible. Stay downwind of the fire. Aim at the base of the fire. None 333. Truck escape ramps are designed to stop runaway vehicles safely without injuring drivers and passengers. should not be used unless you have already tried all other possible ways to save your vehicle after brake failure. cannot be used by certain types of heavy vehicles. None 334. If your truck is transporting cargo, you must check the securement of the cargo within the first ____ miles of the trip. 150 50 100 None 335. A vehicle is loaded with very little weight on the drive axles. What may happen? Poor traction Better handling Damage to drive axle tires None 336. How many tie-downs are required for a 20-foot load? 4 3 2 1 None 337. Whenever you stop for a break during your trip, you should check critical items such as the windshield wipers, heater, and defroster. check critical items such as the tires, brakes, and cargo tie-downs. call in and check with dispatch. None 338. When you're driving at 55 mph under good driving conditions, your total stopping distance will be at least 419 feet. at least 353 feet. at least 216 feet. None 339. In which of the following two situations should you downshift? Starting down a hill and entering a curve Starting up a hill and entering a curve Starting up a hill and finishing a curve Starting down a hill and finishing a curve None 340. Underinflated tires can cause a tire fire. False True None 341. What is the minimum tread depth for front (steering) tires? 1/32 inch 4/32 inch 2/32 inch None 342. Medicines for the common cold can be used when you're driving if you only take half the regular dosage. can make you sleepy and should not be used while you're driving. should only be used when you're driving in the daytime. None 343. Identify component P. Bearing plate Spring shackle Spring hanger None 344. To maintain alertness on your trips, you should schedule your trips for the daytime hours. get 8–9 hours of sleep beforehand. avoid medications that cause drowsiness. do all of the above. None 345. At dawn or dusk, or in rain or snow, it can be hard to see and be seen. You can let others know you are there by using your horn. turning on the low-beam headlights. turning on the inside cab light. None 346. When driving at night, you should look to the left side of the road when a vehicle is coming toward you. drive faster when your low beams are on. adjust your speed to keep your stopping distance within your sight distance. None 347. Why is it important to use a helper when backing? Because you are providing a job for someone else Because you have blind spots Because people feel more comfortable when you do For all of the above reasons None 348. You are driving in a rainstorm in the middle of the day. What following distance should you maintain behind the vehicle in front of you? Much more than under normal driving conditions The same following distance as under normal driving conditions One car length for every 10 mph of speed One second more than under normal driving conditions None 349. Where should you place your warning devices if you must stop on a one-way road or divided highway? 50 feet, 100 feet, and 150 feet toward approaching traffic 20 feet, 50 feet, and 100 feet toward approaching traffic 100 feet, 200 feet, and 300 feet toward approaching traffic 10 feet, 100 feet, and 200 feet toward approaching traffic None 350. Is it always dangerous to back up a CMV? Not if you have a helper. Yes. Not if you're backing in a straight line. None 351. The best drivers watch for hazards and prepare for them in advance. This is called ________ driving. offensive. defensive. objective. None 352. You're having some trouble backing your truck into the dock. Your helper offers to back your truck for you. You should ask the receiver for advice. politely refuse. allow him or her to back the truck while you act as helper. allow him or her to back the truck while you let dispatch know about it. None 353. To help prevent a rollover, you should do two things: keep the cargo as close to the floor as possible, and make sure the brakes are adjusted. drive slowly around turns. keep both hands firmly on the wheel. None 354. Which of these statements about controlling your vehicle's speed is true? Choose a speed that lets you stop within the distance you can see ahead. If you double your speed, it will take you twice as long to brake to a stop. Fully loaded trucks require greater stopping distances than empty trucks. None 355. The Ohio Commercial Driver License Manual suggests several things to do when you pass a vehicle. Which of these is NOT one of them? Constantly blow your horn while passing the vehicle. At night, flash your lights from low to high beam and back while you pass the vehicle. Assume the other driver does not see you. None 356. You are checking your brakes and suspension system for a pre-trip inspection. What are you looking for? Brake shoes must not be worn dangerously thin, missing, or broken. Brake pads should not have oil, grease, or brake fluid on them. Both of the above should be true. None 357. Which of these statements about mirror adjustment in a tractor-trailer is true? The mirrors can be adjusted correctly even if the trailer is not straight. You can adjust the mirrors while you are driving. You should adjust your mirrors before starting your trip. None 358. Which of these would probably NOT help if your windshield becomes covered with ice? Brush Defroster Scraper None 359. Polarized gladhands on a tractor cannot be incorrectly connected to non-polarized trailer couplers. can be incorrectly connected to polarized trailer couplers. can be incorrectly connected to non-polarized trailer couplers. cannot be connected to trailers built before 1975. None 360. If you are confronted by an aggressive driver, what should you do? Call the police from your cell phone if you can do it safely. Avoid eye contact. Ignore rude gestures and refuse to react negatively. Do all of the above. None 361. Which of these statements about vehicle fires is true? A burning tire should be cooled with water. If the cargo or box trailer catches fire, open the doors as soon as you can. If your engine is on fire, open the hood as soon as you can. None 362. Controlled braking involves locking the wheels for short periods of time. involves keeping a vehicle in a straight line when braking. can be used while you are turning sharply. None 363. As part of your pre-trip inspection, you must check for overloads poorly balanced weight. both of the above. None 364. Name some things you should check on the front of your vehicle during your pre-trip inspection. Low beams, high beams, four-way flashers, and turn signals Windshield wipers, mirrors, and hood latches Oil, transmission, air compressor, and radiator None 365. What is the primary cause of fatal crashes? Driving too fast Driving while eating Driving at night None 366. If you need to leave the road in a traffic emergency, you should avoid braking until your speed has decreased to about 20 mph. tap repeatedly on the brakes. try to get all the wheels off the pavement. None 367. What does "communicating" mean in safe driving? Driving brightly colored vehicles Using hand signals Letting other drivers know you're there None 368. Which of these CDL tests can you fail and still be issued a CDL? Basic control skills test Vehicle inspection test Neither of the above None 369. Your tractor-trailer's brakes can get wet when you drive through heavy rain. What can this cause when you apply the brakes? Excessive brake wear Hydroplaning Trailer jackknife None 370. How many reflective warning triangles must you carry with you for emergencies? 4 2 3 None 371. Identify component R. Auxiliary spring Main spring Torque rod None 372. You are driving on a straight, level highway at 50 mph. There are no vehicles in front of you. Suddenly a tire blows out. What should you do first? Begin light braking. Stay off the brakes until the vehicle slows down on its own. Begin controlled or stab braking. None 373. Which of the following vehicles will have the longest stopping distance? Loaded tractor-trailer Bobtail tractor Unloaded tractor-trailer None 374. You are driving in the right lane of a four-lane, undivided road. Traffic is heavy. You come around a curve and then you notice a hazard ahead in your lane. You don't have enough room to stop. What should you do? Steer into the left lane. Brake hard and brace for collision. Steer to the right. None 375. Which of these statements about shipping hazardous materials is true? A four-inch, diamond-shaped hazardous materials label must be on the container. A four-inch, circular, red hazardous materials label must be on the container. Gas cylinders that will not hold a label must be shipped under cover. None 376. Cargo that is not loaded or secured properly can cause vehicle damage by overloading. injure the driver or other road users. do both of the above. None 377. To avoid a crash, you had to drive onto the right shoulder. You are now driving at 40 mph on the shoulder. How should you move back onto the pavement? If possible, come to a complete stop before steering back onto the pavement. Keep moving at the present speed and steer very gently back onto the pavement. Brake hard to slow the vehicle; then steer sharply onto the pavement. None 378. Which of these statements about drinking alcohol is true? A few beers have the same effect on driving as a few shots of whiskey. Some people aren't affected by drinking. Coffee and fresh air can sober a person up. None 379. Which of these statements about driving in bad weather is FALSE? When the temperature drops, bridges will freeze before roadways. As rain continues, the road becomes more slippery than it was when the rain began. Driving conditions become more dangerous as the temperature rises to the point that ice begins to melt. None 380. Brake fade can be caused by the brakes becoming too hot. can be corrected by letting up on the brakes for one or two seconds and then reapplying them. only occurs with drum brakes. None 381. To estimate a person's blood alcohol concentration (BAC), you need to know how much alcohol the person consumed and how much the person weighs. how often the person drinks alcohol. how old the person is. None 382. Which of the following is true about a vehicle with a high center of gravity? The heaviest parts of the cargo should be underneath the lightest parts. The vehicle is less likely to tip over. The vehicle is less dangerous on curves. None 383. Which of these will help keep an engine cool in hot weather? Making sure the engine has the right amount of oil Running the air conditioner Driving faster to force more air into the radiator None 384. Which of these statements about speed management in freezing weather is true? Slight melting will make icy surfaces more slippery. Shady parts of the road will provide better traction than open areas. Road surfaces will freeze before bridges. None 385. Which of these is true about driving in a tunnel? Headlights are required by law. Emergency flashers are required by law. There may be strong winds when exiting. None 386. Which of these is NOT something you should do if your headlights are not working properly? Clean the headlights. Leave your high beams on. Adjust the headlights. None 387. In the continental United States, the maximum width of any CMV operated on interstate highways is _______ unless a special permit is obtained. 9½ feet 9 feet 8½ feet 8 feet None 388. What are some things you should do at an accident scene to prevent another accident? If you're stopping to help, park away from the accident. Try to move your vehicle to the side of the road. Do both of the above. None 389. What should you do before driving if you are sleepy? Take some caffeine pills. Get some sleep. Drink some coffee. None 390. Lumpers are persons usually employed by _________ to unload cargo from the truck at the receiver. a third party the receiver the shipper the carrier None 391. Whether or not you load or secure your cargo yourself, you are responsible for recognizing overloads and poorly balanced weight. knowing that your cargo is securely tied down and covered. both of the above. None 392. You are driving a heavy vehicle on a highway, and you plan to exit onto an off-ramp that curves downhill. You should slow down to the posted speed limit for the off-ramp. slow down to a safe speed before taking the curve. wait until you are in the curve before downshifting. None 393. Which of these tells you that cargo contains hazardous materials? A hazardous materials placard is on the vehicle. There is a four-inch, diamond-shaped hazardous materials label on the container. Both of these answers are correct. None 394. Load binders are used for what purpose? To tighten tiedown chains To contain aggregate loads To hold down a load that is too large for the vehicle To bind bundles of cargo such as logs or poles None 395. The amount of liquid to load into a tank depends on the amount the liquid will expand in transit. the legal weight limits. both of the above. None 396. As your blood alcohol concentration (BAC) rises, what happens? Your judgment and self-control are affected. You can sober up in less time. You see more clearly how alcohol is affecting you. None 397. You are driving on a two-lane road. An oncoming driver drifts into your lane and is headed straight for you. Which of these is most often the best action to take? Steer to the right. Steer onto the left shoulder. Brake hard. None 398. Which of these may be a sign of tire failure? Vibration A loud hissing noise Wheels skidding None 399. Should brake adjustments be checked often? Yes, because brakes can get out of adjustment when they are used a lot. No, because the other brakes will compensate for a brake that is out of adjustment. It depends on how new the brakes are. None 400. Under which of the following situations must you stop at a railroad grade crossing? The cargo you're carrying makes stopping mandatory under federal or state regulations. Traffic is heavy on the road you are driving on. There are no warning devices or flagpersons at the grade crossing. None 401. Your vehicle has hydraulic brakes. While traveling on a level road, you press the brake pedal and find that it goes to the floor. Which of these statements is true? Shifting into neutral will help slow the vehicle. The parking brake will not work either because it is part of the same hydraulic system. Pumping the brake pedal may raise hydraulic pressure so you can stop the vehicle. None 402. If a straight vehicle (no trailer or articulation) goes into a front-wheel skid, it will go straight ahead even if the steering wheel is turned. go to the right. slide sideways and spin out. None 403. While driving, you see a small (one-foot-square) cardboard box ahead in your lane. You should hit it with your vehicle to knock it off the road. brake hard to avoid hitting it. steer around it without making a sudden or unsafe move. None 404. Which of these statements about emergency braking is FALSE? You should brake in a way that will keep your vehicle in a straight line. How you brake in an emergency situation is not that important. You should not press the brake pedal as hard as you can. None 405. What should you do when approaching a hazard in a work zone? Stop quickly and pull to the side of the road. Use your four-way flashers or brake lights to warn others. Swerve around it and get back into your lane. None 406. How do you test hydraulic brakes for leaks? Drive 20 mph and slam on the brakes. Drive slowly and pump the brake pedal. Make sure it doesn't hit the floor. Pump the brake pedal three times; then apply firm pressure to the pedal and hold it for five seconds. The pedal should not move. None 407. For your safety, when setting out reflective triangles, you should keep them out of sight while you walk to the spots where you'll set them out. carry the triangles at your side. hold the triangles between yourself and oncoming traffic. None 408. Name two causes of fires. Driver smoking and following too closely Underinflated tires and dual tires that touch Tight turns and gravel roads None 409. Your blood alcohol concentration (BAC) depends on your height. body weight. age. None 410. Which of these statements about accelerating is true? Rough acceleration can cause mechanical damage. When traction is poor, more power should be applied to the accelerator. You should feel a "jerking" motion if you are accelerating your vehicle properly. None 411. When you are passing a pedestrian, a bicyclist, or another vehicle, you should assume that they will move out of your lane of traffic. may move into your traffic lane. see you. None 412. Which of these statements about tires is true? The air pressure of a tire decreases as the temperature of the tire increases. If the tires are too hot to touch, let 5–10 pounds of air pressure out to cool them down. In very hot weather, you should inspect your tires every two hours or every 100 miles. None 413. Which of these statements about engine overheating is true? Antifreeze is not needed when the weather is warm. You should never remove the radiator cap on a pressurized system until the unit has cooled. You should never shut off an overheated engine until it has cooled. None 414. Which of the following statements about backing are true? You should back and turn toward the driver's side whenever possible. Backing is always dangerous. Both of the above are true. None 415. While driving, you should use your mirrors to check where the rear of your vehicle is while you make turns. your blind spots only. if your running lights are working properly. None 416. Which of these is NOT part of the basic method for shifting up? Releasing the clutch and pressing the accelerator at the same time Accelerating while pressing the clutch and turning toward the driver's side Pushing in the clutch and shifting into a higher gear at the same time Releasing the clutch None 417. Which of the following strategies can help prevent cargo theft? Whenever you stop or park, let dispatch know. Lock uncoupled trailers so they can't be moved. Always be aware of your surroundings. All of the above can help. None 418. No matter how small the cargo is, it should have at least 1 tie-down. 2 tie-downs. 6 tie-downs. None 419. If the vehicle in front of you is smaller than yours, it can probably stop faster than you. outrun you. make turns faster than you. None 420. Which of these statements about a pre-trip inspection is true? If you need to tilt the cab, secure loose items first. If you're parked on a street, face away from oncoming traffic. Leave the key in the ignition. None 421. Which of the following statements is true? Many heavy vehicle accidents occur between midnight and 6 a.m. Most hazards are more easily seen at night than during the day. Most people are more alert at night than during the day. None 422. Cargo that is not loaded or secured properly can cause which of the following problems? Loose cargo can injure the driver or passengers during a quick stop or crash. Other road users can hit or be hit by loose cargo. Both of the above are correct. None 423. If you wish to turn left and there are two left-turn lanes, which of the following should you NOT do? Start your turn from the center of the intersection. Start in the inside lane and swing right as you turn. Use the right-hand turn lane. None 424. To fight a fire in the engine compartment, you should open the hood to target the base of the fire. False True Impossible to determine without more information None 425. Which of these statements about a differential is FALSE? On a curve, it lets the outside wheels turn faster. On a curve, it lets the outside wheels turn slower. It lets each side of the axle turn at a different rate. It transfers power from the drive shaft to the axle. None 426. Signs of distracted drivers include vehicles constantly traveling above the speed limit. drivers listening to overly loud music. vehicles exiting the roadway. drivers having conversations with passengers. None 427. You should schedule your driving for between 4 a.m. and 6 p.m. between 10 a.m. and midnight. the hours that you are normally awake. None 428. Which of these is part of your vehicle's suspension? Pitman arm Drag link Neither of the above None 429. What is the best way to figure out how many seconds of following distance you have? Send a text message to a friend to text you back in ten seconds. See how far you have traveled in that time. Wait until the vehicle ahead of you passes a shadow or landmark. Then count the seconds until you reach it. Get 1/4 closer to the vehicle in front of you, then back off again. Multiply how long this took you by four to give the following distance. Use the stopwatch on your cell phone to determine how long it takes you to reach a mile marker after the vehicle in front of you has passed it. None 430. How do you correct a drive-wheel acceleration skid? Stop accelerating. Apply more power to the wheels. Countersteer the steering wheel. None 431. Which of these statements about double-clutching and shifting is true? Double-clutching should not be used when the road is slippery. Double-clutching should only be used with a heavy load. You can use the tachometer to tell you when to shift. None 432. At a blood alcohol concentration (BAC) of ______, most people lose consciousness, and some die. 0.40% 0.10% 0.16% None 433. Which of these items is NOT checked on a pre-trip inspection? Whether all vehicle lights are working and clean Cargo securement Cab air conditioning None 434. You are driving a tractor-trailer at 55 mph on dry pavement. About how much total distance will you need to bring it to a stop? Twice the length of the vehicle The length of a football field Half the length of a football field None 435. In your pre-trip inspection, you are checking your steering and exhaust systems. Which of these problems should be fixed before the vehicle is driven? White smoke from the exhaust pipe before the vehicle warms up Steering play in excess of 10 degrees Oil on the tie rod None 436. Which of these statements is true about other drivers? Drivers using turn signals can be trusted to turn in the direction they indicate. Mail or delivery truck drivers do not pose a hazard. Rental truck drivers are often not used to the limited vision and pose a hazard. None 437. Which of these statements about using turn signals is true? You do not need to use your turn signal when changing lanes on a four-lane road. When turning, you should signal early. When turning, you should cancel the turn signal just before you make the turn. None 438. Blocking the cargo to keep it from shifting must be done at the front, back, or sides of a piece of cargo. only at the front of a piece of cargo. at the cargo deck. None 439. When performing the pre-trip inspection of a bus, what checks should you perform on the driveshaft assembly? The driveshaft is not bent or cracked. The U-joints are not loose or worn. The guards are securely mounted and in good condition. Check all of the above. None 440. For combination vehicles, which of the following statements about drive-wheel braking skids is true? Locked wheels have more traction. This type of skid occurs only rarely. The trailer can push the tractor sideways. This type of skid does not cause jackknifing. None 441. During an inspection of hydraulic brakes, you should pump the brake pedal three times, then apply firm pressure to the pedal for five seconds. If the brakes are working properly, the pedal should sink to the floor. the pedal should depress slightly. the pedal should not move. None 442. Letting the air out of hot tires will have no effect at all. will cool them down. You will be able to continue your trip sooner. is a bad idea because when the tires cool off, the pressure will be too low. is a good idea because the extra pressure will be relieved. None 443. You are checking your wheels and rims for a pre-trip inspection. Which of these statements is true? Cracked wheels or rims can be used if they have been welded. Rust around lug nuts may mean that they are loose. A vehicle can be safely driven with one missing lug nut on a wheel. None 444. When you check the condition of visible parts during your pre-trip inspection, make sure that the ___________ are secured against snagging, rubbing, or wearing. air lines and electrical cables frame and cross members primary and secondary safety cab locks None 445. When getting ready to cross a bridge you should straddle the line to stay in the middle of the bridge. read the weight limit sign. slow down to 20 mph. None 446. The total weight of the powered unit, the trailer, and the cargo is called gross axle weight. gross vehicle weight. gross combination weight. None 447. Which of these statements about using mirrors is true? You should check your mirrors twice for a lane change. There are blind spots that your mirrors cannot show you. You should look at a mirror for several seconds at a time. None 448. An en route inspection should include checking the cargo securement. the tires. both of the above None 449. According to the Hours of Service (HOS) regulations, the driver of a passenger-carrying vehicle who has been on duty for 15 hours may not drive _________ before going off duty. for more than 2 hours for more than 3 hours for more than 1 hour at all None 450. If you double your speed, how much more distance will it take to brake to a stop? Twice as much Four times as much Three times as much Five times as much None 451. Which of these statements about engine belts in hot weather is FALSE? Loose belts will not turn the water pump and/or fan on properly. Cracking is likely to occur but it is not a safety threat. You can check the tightness of belts by pressing on them. None 452. You were forced to leave the road in an emergency, and you are forced to return to the road before stopping on the shoulder. What should you do? Using mirrors and turn signals, edge gradually back onto the road. Using mirrors and turn signals, turn sharply to get back onto the road. Drive on the shoulder to the next exit and then re-enter the road. None 453. Which of these is a danger of crossing railroad tracks on dirt roads? You could get hung up halfway across. Your tires could sink into the dirt and not cross the tracks. The ground underneath the tracks might not be stable. None 454. Why should you cover your cargo? To protect individuals from any spilled cargo Because many states require it To protect your cargo from bad weather For all of the above reasons None 455. When you are driving on a snow-packed road, you should reduce your speed by at least one-half. one-third. one-quarter. None 456. If you are driving a long distance, you should take a short break once or twice during the trip when you are feeling tired or drowsy. stop often and take short breaks before you feel really drowsy or tired. avoid short breaks but keep the window open. None 457. You are driving a truck with a manual transmission. While driving on an uphill grade, you have to stop the truck on the shoulder. Which of these is a good rule to follow when putting it back in motion up the grade? Use the parking brake to hold the vehicle until the clutch engages. Let the vehicle roll straight backward a few feet before you engage the clutch. Keep the clutch slipping while slowly accelerating. None 458. In which of these situations can strong winds most affect your driving? Driving on a straightaway Driving around a sharp curve Exiting a tunnel None 459. How can you avoid wet brake problems? Speed up or shift into a higher gear. Apply the brakes harder and faster. Slow down, shift into a low gear, and gently apply the brakes. None 460. Which of these statements about backing large vehicles is true? Helpers should be out of sight and use only spoken signals to communicate with the driver. You should avoid backing whenever you can. It's safer to back toward the right side of the vehicle. None 461. You are driving on a two-lane road. An oncoming vehicle drifts into your lane and is headed straight for you. Which of the following should you do? Brake hard. Prepare for impact. Steer to the right. None 462. To drive down a mountain road safely, you'll have to downshift into lower gears. Which of these should NOT affect your choice of gears? Weight of the load Length of the downgrade Type of tire tread None 463. The purpose of retarders is to apply extra braking power to the non-drive axles. help prevent skids and reduce brake wear. help slow the vehicle while driving and reduce brake wear. None 464. Under federal regulations, the maximum allowed gross vehicle weight (GVW) of a truck on an interstate highway is 60,000 pounds. 80,000 pounds. 100,000 pounds. 120,000 pounds. None 465. How or where is cargo blocking used? Loosely around the cargo From the upper part of the cargo to the floor In the front, back, or sides of the cargo None 466. Which of these is NOT required knowledge for drivers needing a HAZMAT endorsement? Which products can be loaded together When to use placards Basic chemistry None 467. Most serious skids result from driving too fast for conditions. turning too sharply. an uneven load. None 468. You are driving a vehicle that can be driven safely at 55 mph on an open road. Although the speed limit is 55 mph, traffic is heavy, moving at 35 mph. The safest speed for your vehicle in this situation is 35 mph. 45 mph. 40 mph. None 469. When starting a bus on a level surface with good traction, there is often no need for the parking brake. slow acceleration. a tire check. None 470. Why is it important to shift gears properly? To help maintain control of the vehicle To keep the engine at the proper temperature To keep the oil flowing through the crankcase To keep the cargo cool None 471. Why do dry bulk tanks require special care? They have a high center of gravity. The load can shift. Both of the above answers are correct. None 472. Which of these is not part of the pre-trip inspection of the engine compartment? Worn electrical wiring insulation Condition of hoses Valve clearance None 473. Which of the following materials can be used in an A:B:C fire extinguisher to put out all three classes of fires? Carbon dioxide Dry chemical agent Water None 474. Which of these is the most important thing to remember about emergency braking? Disconnecting the steering axle brakes will help keep your vehicle in a straight line. If the wheels are skidding, you cannot control the vehicle. Never do it without downshifting first. None 475. You can use water to extinguish which of the following fires? Tire fires Electrical fires Gasoline fires None 476. Which of these is a sign of tire failure? Heavy steering Vibration Both of the above None 477. If your vehicle catches fire while you are driving, you should increase your speed to put out the flames. park where trees or a building can shelter your vehicle from the wind. park in an open area. None 478. When you inspect your vehicle during cold weather, you should pay particular attention to the exhaust system. the steering system. the suspension system. None 479. You are going to load and transport a cargo of perishable foodstuffs in your refrigerated (reefer) truck. You should do which of the following? Cool down the load to the proper temperature after it has been loaded. Provide for adequate air circulation in the cargo area. Keep the load at as low a temperature as possible. Do all of the above. None 480. While you're driving at low speeds, what distance should you look ahead of your vehicle? Two blocks Half a block One block None 481. When driving in work zones, you should slow down. use your four-way flashers or brake lights to warn drivers behind you. do both of the above. None 482. Which of the following is NOT a type of retarder? Hydraulic Electric Robotic None 483. Which of these statements about staying alert to drive is true? A half-hour break for coffee will do more to keep you alert than a half-hour nap. There are drugs that can overcome fatigue. Sleep is the only thing that can overcome fatigue. None 484. Which of the following is correct? Brake shoes should not be worn dangerously thin. Brake shoes on the steering axle should be larger than a quarter. Brake shoes should have the same thickness as a penny. None 485. Name two situations in which the legal maximum weights may not be safe to haul. During bad weather; in the mountains At night; in heavy traffic Through tunnels; over bridges None 486. When you intend to turn, how should you use your turn signals? Signal continuously up through the turn. Signal well in advance of the turn. Do both of the above. None 487. Which of these describes how you should use the brake pedal on a steep downhill grade? Apply light, steady pressure. Release the brake when you are 5 mph below your safe speed and let your speed come back up to your safe speed. Then repeat braking to 5 mph below your safe speed. Apply stronger pressure as the vehicle goes downhill. None 488. How should you merge safely onto a freeway or expressway? Edge slowly into the nearest lane to force other drivers to leave you room. Accelerate on the shoulder to highway speed before you merge. Wait for a large enough gap in traffic in the nearest lane before you merge. None 489. Medical certificates must be renewed every 4 years. 9 months. 2 years. None 490. How long does it take a typical tractor-trailer to clear a single railroad track? A double railroad track? It takes 14 seconds to clear a single track and more than 15 seconds to clear a double track. It takes 7 seconds to clear a single track and more than 10 seconds to clear a double track. It takes 10 seconds to clear a single track and more than 12 seconds to clear a double track. None 491. Which of the following is true about using engine braking on a downgrade? The use of brakes adds to the braking effect of the engine. Engine braking creates extra heat between the brake shoes or pads and the drums or discs. You should NOT use engine braking as the main way to control speed. None 492. What checks should you perform on the steering gear box? The steering box should not have mismatched, bent, or cracked lug nuts. The steering box should not be missing any nuts, bolts, or cotter keys. Up to one-fourth of the steering parts may be broken. None 493. The reaction distance is the distance traveled from the time the brain tells the foot to push the brake pedal to the time the foot actually pushes the pedal. the eyes see a hazard to the time the foot pushes the brake pedal. the eyes see a hazard to the time the brain knows that it is a hazard. None 494. You can use your retarder only where allowed by law. only on slippery roads. only when traveling downhill. None 495. On a two-way, two-lane road, if you must stop on a hill, how far back should you place your reflective triangles? Within 250 feet behind the vehicle Within 100 feet behind the vehicle Within 500 feet behind the vehicle None 496. After you start the engine, the engine temperature gauge will take 3–5 minutes to rise to normal. the coolant temperature gauge should begin a gradual rise to normal. the oil pressure gauge should take 35 minutes to rise to normal. None 497. Wheel bearing seals should be checked for color changes. gasoline. leaks. None 498. Convex curved mirrors make objects appear closer than they really are. make objects appear larger than they really are. show a wider area than flat mirrors. None 499. What is your most valuable way to see the sides and rear while driving? Check your mirrors regularly. Look out the window. Get out and inspect the areas. None 500. Your GPS device should be designed for truck navigation. should be made in the USA. should have a suction-cup mount. None 501. Under federal regulations, coach buses and truck tractors manufactured since ______ are required to be equipped with electronic stability control (ESC). 2017 2019 2015 2000 None 502. All of the following behaviors are signs of aggressive driving EXCEPT purposely straddling two lanes of traffic. changing speeds frequently. purposely blocking another vehicle from changing lanes. None 503. When should you learn how a fire extinguisher works? Before a fire happens Only when a fire happens Only when you are transporting flammable materials None 504. If you are found to have a blood alcohol concentration (BAC) of 0.02%, you will be placed out-of-service for 48 hours. 72 hours. 24 hours. None 505. Tie-downs must be of the proper type and strength. According to federal regulations, the aggregate working load limit of the cargo tie-downs must be enough to secure three times the weight of the cargo tied down. twice the weight of the cargo tied down. one-half times the weight of the cargo tied down. None 506. What is the most important reason for being alert to hazards? Accident reports will be accurate. Law enforcement personnel can be called. You will have time to plan your escape if the hazard becomes an emergency. None 507. Front-end header boards block the forward movement of your cargo. protect you from your cargo in case of collision. do both of the above. None 508. You are driving a 40-foot vehicle at 35 mph. The road is dry and visibility is good. What is the least amount of space you should keep in front of your vehicle to be safe? 3 seconds 4 seconds 5 seconds None 509. High beams should be dimmed whenever you get within 1,000 feet of another vehicle. turned on when an oncoming driver does not dim his or her lights. used when it is safe and legal to do so. None 510. When you're driving in cold weather, your tires must have at least 4/32-inch tread depth. have at least 6/32-inch tread depth. provide enough traction to steer and push the vehicle through snow. None 511. Why will your vehicle's speed naturally increase on downgrades? Lack of traction Gravity Smoother engine performance None 512. It is illegal to drive a CMV if your blood alcohol concentration (BAC) is ______ or above. 0.02% 0.06% 0.04% None 513. Which of these statements about shifting gears is true? You can use the tachometer to tell you when to shift. Double-clutching should only be performed with a heavy load. Double-clutching should not be performed when the road is slippery. None 514. Which of these statements is FALSE? Your blood alcohol level (BAC) is determined by how fast you drink, how much you drink, and how much you weigh. A drinker can control how fast his or her body absorbs and gets rid of alcohol. Alcohol goes directly from the stomach to the blood stream. None 515. Which of the following statements about an escape ramp is FALSE? It may be made of soft gravel. It is of no use if you are traveling too fast. It may turn uphill. It may be located a few miles from the top of a downgrade. None 516. Why should you be in the proper gear before starting down a hill? You may not be able to shift into a lower gear once you are going down a hill. The clutch is made to be used on even surfaces. You need to be in the same gear at the bottom of the hill. None 517. When you drive on roads whose speed limits for CMVs are lower than for cars, you should drive at about the same speed as the cars. drive at about the same speed as the other CMVs. use extra caution when you change lanes or pass. None 518. Most trucks on the road today have a _______ electrical system. 6-volt 18-volt 24-volt 12-volt None 519. How can you avoid the effects that wet brakes can cause? Gently apply the brakes, increase engine rpm, and cross the water while keeping light pressure on the brakes. Slow down and place the transmission in low gear. Both of the above answers are correct. None 520. To safely adjust your speed to current driving conditions, what should you look for ahead? Police and weigh stations Road signs and traffic Traffic and road conditions None 521. Which of these statements about overhead clearance is true? You should assume that the posted clearance signs are correct. The weight of a vehicle changes its height. If the road surface causes your vehicle to tilt toward objects at the edge of the road, you should drive close to the shoulder. None 522. Which of these statements about accelerating in a tractor-trailer is true? Rough acceleration can cause mechanical damage. It's dangerous to apply the trailer hand valve when you're starting off. You should feel a jerking motion if you are accelerating your vehicle properly. None 523. What is the proper way to hold the steering wheel? Firmly, with your hands on opposite sides of the wheel Firmly, with one hand at the top of the wheel and the other hand at the bottom of the wheel With your right hand on the wheel None 524. Even if you don't have a Hazardous Materials endorsement on your CDL, you can drive a vehicle carrying hazardous materials if the cargo will be transported less than 100 miles. the vehicle does not require placards. someone who has a Hazardous Materials endorsement rides with you. None 525. Which of these is NOT a proper use of vehicle lights? Flashing your brake lights to warn someone behind you that you are slowing down Turning on your headlights during times when visibility is reduced Flashing your brake lights to stop someone from tailgating None 526. If you must care for the injured at an accident scene, you should NOT move severely injured persons if there is a danger from fire or passing traffic. allow injured persons to become chilled. stay out of the way if a qualified person is already helping them. None 527. If the coolant container is part of the pressurized system, which of the following is true? You may be able to check the coolant level even while the engine is hot. You can add coolant even while the engine is hot. You never need to check the coolant level. None 528. Which of these statements is true about brakes? Brake drums cool very quickly when the vehicle is moving very fast. Brake fade is not caused by heat. Brakes absorb more heat to stop heavier vehicles. None 529. A key principle to remember about loading cargo is to keep the load to the rear. balanced in the cargo area. to the front. None 530. Perception distance is the distance that your vehicle travels from the time that your brain decides to brake, to the time that you start to press the brake pedal. from the time that your eyes see something, to the time that your brain recognizes it. from the time that your eyes see something, to the time that you start to press the brake pedal. None 531. You are driving a tractor-trailer. If the tractor has antilock brakes (ABS) but the trailer doesn't, the chance of a rear-wheel skid will increase. the chance of jackknifing will increase. you will have more control over the vehicle than if the tractor lacked ABS. None 532. You'll be driving a loaded 5-axle tractor-trailer equipped with sliding tandems. Currently, the weight on the drive axles is 32,000 pounds, and the weight on the trailer tandem axles is 35,000 pounds. Assume 250 pounds per tandem hole. Which way should you slide the trailer tandems to comply with federal weight limits? 3 holes backward 3 holes forward 6 holes backward 6 holes forward None 533. At highway speeds, how far ahead should you be looking? 1/8 mile. 1/2 mile. 1/4 mile. None 534. Which of these is a good thing to do when driving at night? Drive slowly enough to stop within the range of your headlights. Look directly at oncoming headlights only briefly. Keep your instrument lights bright. None 535. When driving a commercial vehicle whose height is over 13 feet, you should assume all clearances are high enough. stop and make sure if you aren't certain that a clearance is high enough. not worry about the height clearance as long as you stay on state or federal highways. None 536. What is aggressive driving? Driving in a selfish or pushy manner Driving while your attention is directed elsewhere Intentionally driving to harm someone None 537. Under federal regulations, when you're transporting a large boulder (with a stable base) on a flatbed vehicle, you must support it with at least ____ piece(s) of hardwood blocking and secure it with at least ____ chain(s). 2; 3 2; 1 2; 2 1; 2 None 538. Escape ramps are used to stop runaway vehicles. used to get out of a burning truck. for combination vehicles only. None 539. Which of these statements is true about medicines used to treat the common cold? They can be used while driving as long as you only take half the regular dose. They often make you sleepy. Therefore, they should not be used while driving. They should only be used when driving during the daytime. None 540. When you drive in the mountains, you will have to use lower gears to drive safely down grades. Which of these does NOT affect your choice of gears? Length of the grade Type of tire tread Weight of the load None 541. When checking your vehicle's lights during your pre-trip inspection, you should turn off the engine and take the key with you. turn on the headlights and four-way flashers. do both of the above. None 542. Do empty trucks have the best braking? Yes. Yes, but only if the trucks are newer than 1998. No. Yes, but only on wet surfaces. None 543. A driver's logbook must be shown immediately if an officer requests it. may be written in pencil. may be brought up to date once a week. None 544. When you're starting off on dry, level pavement, it is usually necessary to do which of the following? (a) Partly engage the clutch before you take your right foot off the brake. (b) Apply the parking brake. Neither (a) nor (b) Both (a) and (b) None 545. You're driving a truck, and a passenger is seated next to you in the cab. Under federal regulations, is the passenger required to wear a seat belt? Yes, but only if the passenger doesn't hold a CDL. Yes, but only if the passenger holds a CDL. No. Yes. None 546. Your vehicle has hydraulic brakes. When traveling on a level road, you press the brake pedal and find that it goes to the floor. Which of these statements is true? Shifting into neutral may help slow the vehicle. Pumping the brake may generate enough pressure to stop the vehicle. The parking brake will not work because it is part of the same hydraulic system. None 547. Always try to back toward the driver's side because your truck will probably pull toward the driver's side. you can see better, watching the vehicle's rear from the side window. it's more comfortable for turning your neck. all of the above are true. None 548. Which of these pieces of emergency equipment must always be carried in your vehicle? First-aid kit Circuit breakers Warning devices for stopped vehicles None 549. Which of the following is true about drinking alcohol? Alcohol first affects judgment and self-control. Small quantities of alcohol improve reaction time. The driver can control how fast the body gets rid of alcohol. None 550. Under federal regulations, if a vehicle is carrying a load that is more than two feet wide and extends more than four feet beyond the rear of the vehicle, _________ must be placed at the extreme end of the load in the daytime. two red flags two red lights one red flag None 551. The minimum tire tread depth for front tires is 3/8 inch 1/2 inch 4/32 inch 1/32 inch None 552. Which of the following is true about using a heater while you're driving in winter weather? Before you drive, make sure that the cab heater is working. If you feel drowsy, warm up your cab with the heater. Federal regulations require mirror heaters in below-freezing weather. None 553. Which of these statements about marking a stopped vehicle is true? If a hill or a curve keeps drivers behind you from seeing your vehicle within 500 feet, move the rear reflective triangle back down the road to give adequate warning. You must set out your emergency warning devices within 5 minutes. Keep your vehicle's taillights on to warn other drivers. None 554. The stopping distance of a tractor-trailer traveling at 45 mph on dry pavement is approximately half the length of a football field. the length of a football field. twice the length of the vehicle. None 555. When backing, why is it important to have a helper? It's more fun when you have help. There are blind spots you can't see. It makes people think you're a better driver. None 556. Your brakes fail while you are traveling down a long, steep downgrade. What should you do? Look for an escape ramp or escape route. Downshift. Do both of the above. None 557. The "load" means the maximum weight that a tire can safely carry at a specified pressure. the specified pressure that a tire can safely bear. neither of the above. None 558. Which of these statements about engine overheating is true? You should never remove the radiator cap on a pressurized system until the system has cooled. You should never shut off an overheated engine until it cools. If your engine overheats within 20 miles of the end of your trip, you should complete the trip and then check the problem. None 559. You are testing the stopping action of service brakes on a hydraulic system. Which of these can mean there is a problem? The vehicle pulls to one side when the brake pedal is pressed. The brake pedal goes to the floor. Both of the above are correct. None 560. When making a left turn, start turning as soon as you reach the stop line. turn your steering wheel slightly to the left before you reach the intersection. drive to the center of the intersection before you start turning. None 561. Which of these items is checked in a pre-trip inspection? Wiper blades Whether all vehicle lights are working and clean Both of the above None 562. Dry bulk and hanging meat cargoes are unstable loads. do not require special care. have low centers of gravity. None 563. Which of the following statements about bias-ply tires and radial tires are true? Bias-ply tires tend to provide a smoother ride than radial tires. In bias-ply tires, the plies criss-cross each other diagonally. Radial tires are more prone to flat spots than bias-ply tires. All of the above are true. None 564. How far ahead should you be looking while driving in town? Two blocks One block As far ahead as you can see None 565. When must you wear a seat belt? Whenever you are hauling hazardous materials Whenever you're driving a CMV Only in states where the law requires it None 566. When you drive through a work zone, you should increase your speed if no construction is currently taking place. turn on your parking lights. slow down even more when workers are present. None 567. How does vehicle weight affect stopping distance? Loaded trucks take longer to stop than empty trucks, but this is not normally the case for buses. The stopping distance of a commercial vehicle is independent of its weight. Empty trucks can take longer to stop than loaded trucks, but this is not normally the case for buses. None 568. If you are being tailgated, you should increase your following distance. flash your brake lights. signal the tailgater when it is safe to pass you. None 569. When a DOT inspector pulls you over for a roadside inspection, which of these is the inspector likely to look at FIRST? Your logbook You Your truck's tires Your truck's braking system None 570. When backing and turning a large CMV, you should back and turn toward the driver’s side if possible. check your path before you start to back up. do both of the above. None 571. When you're driving in snowy weather, your tire tread depth should provide enough traction to drive through snow. be checked every 3 hours or 150 miles. be double the usual depth. None 572. According to the Hours of Service (HOS) regulations, the driver of a cargo-carrying vehicle may not drive more than _______ during a 14-hour on-duty period. 13 hours 10 hours 12 hours 11 hours None 573. When driving through roadway work zones, you should turn on your parking lights. reduce speed only if workers are close to the roadway. watch for sharp pavement drop-offs. None 574. What should you do in thick fog? Follow the taillights or headlights in front of you Assume that the fog will thin out after you enter it Pull off the road into a rest area or truck stop None 575. Blocking is used to keep the cargo from shifting. False Impossible to determine without more information True None 576. Can federal inspectors inspect your truck or bus? Yes, but they will not place it out-of-service. Yes, and they might place it out-of-service. No. None 577. What three things related to cargo are the driver's responsibility? Inspecting the cargo, recognizing overloads, and properly securing the cargo Preparing the shipping papers, inspecting the cargo, and properly securing the cargo Weighing the cargo, properly securing the cargo, and delivering the cargo None 578. What is countersteering? Turning the wheel back in the other direction after steering to avoid a hazard Turning the wheel in a counterclockwise fashion Steering in the opposite direction from what other drivers expect you to None 579. Heavy vehicles must sometimes travel more slowly than other traffic. Which of these is NOT a good rule to follow when you are driving such a vehicle? Keep right. Turn on your four-way flashers if it is legal to do so. Signal other drivers when it is safe for them to pass you. None 580. As a driver's blood alcohol concentration (BAC) rises, what happens? The driver's chances of an accident increase. The effects of the alcohol subside. The person remains aware of the increased effects. None 581. Watch gauges and mirrors and use your senses to check for problems. Check your maps and directions and the weather report. Check load stability by slightly swerving left to right in your lane. None 1 out of 581 Time's up
