Cast Pre-test Welcome to your Cast Pre-test Name Email 1. Name the four most common transmission voltagas on 1393 jurisdiction? 34.5 kV 69 KV 138 KV 230 KV None 2. Name the three most common three phase voltages on 1393 jurisdiction? 4,160 volts 12,470 volts 13,800 volts None 3. The neutral wire on any energkzed wye primary system may be opened safely? No None 4. is It possible to ground one phase of energized delta primary? Yes None 5. is It possible to connect two transformers in parallel that are hooked up to two diff phases? No None 6. What is the first stap in taking a regulator out of service? Place in the neutral position according to the manufacturers specifications None 7. A transformer that is paralleled with another energized transformer is still hot when disconnected from the primary. Yes None 8. Capacitor terminals should be grounded and shunted with a plece of copper prior to working on them. Yes None 9. Grounds should be installed on the neutral first and removed from the neutral last. True None 10. The proper way of connecting an aluminum conductor to a copper conductor is? Aluminum over Copper None 11. Select two reasons why an Electric utility will use capacitors on their system? To correct lagging power factor To offset induction losses on the line None 12. When grounding a de energized line the proper sequence is to connect the grounding equipment to the line first False None 13. The average knot will have about what percentage of the ropes strength? 50-60% None 14. In which of the following electrical systems may a single primary bushing transformer be used? Multi-grounded system or wye grounded system None 15. The purpose of a transformer is to change electrical energy at one potential to electrical energy to another potential. True None 16. Generally speaking tränsformers may be divided into two types. Additive and Subtractive None 17. How long is it necessary to continue artificial respiration on a victim of electrical shock? Until proper breathing has been restored or a doctor pronounces the victim dead None 18. Select two steps when taking a regulator out of service? Place a regulator in neutral position according to instructions Bypass the regulator None 19. What two purposes does oil do in a transformer? Cooling and Insulation None 20. How often should rubber gloves be field tested? Every time before use None 21. The phase to phase (nominal voltage) voltage on a 12,470 volt wye primary is? 12,470 volts None 22. What would you need to do in order to change the rotation of any three phase bank? Swap any two of the three secondaries. None 23. What kind of meter do yau use to check rotation? Rotation meter None 24. What meter would you need to use to check if you could parallel two phases together? Phasing sticks None 25. What does a Capacitar do to the voltage on the line? Boasts voltage None 26. At the station what kind of transformer do you use in order to get a true voltage? Potential transformer None 27. On a running corner installation do you rake the pole toward or away from the down guy? Toward the down guy None 28. All tie wires should be fully annealed and of the same type of metal as the conductor being tied, True None 29. Should you cut the straps and stakes before installing the steel becky around the pole when unloading poles. No None 30. What unit of measure is used to measure current? Amps None 31. Pick the formulas that are correct Power= vaitage X time Watthoure watt X hour Powers voltage X current Voltage-current. X resistance None 32. What is the difference between a class 2 and a class 6 pole? Class 2 poles are larger in diameter that class 6 poles None 33. What is the formula for setting a pole? 10% plus 2 feet None 34. What are two types of arrestors? Surge and Valve None 35. Can you put two different phases on a parking stand? No you can't put two different phases on the sale parking stand None 1 out of 35 Time's up
