#1. The greater voltage drop in a circuit will occur when the __________ the current flow through that part of the circuit.
#2. The output of a 3∅ transformer is measured in units called __________.
#3. Frequency is determined by the __________ of an alternator. I. Size II. Number of poles III. Voltage IV. Rotation speed of armature
#4. Basically all electric motors operate on the principle of repulsion or __________.
#5. The definition of ampacity is __________.
#6. The breakdown voltage of an insulation depends upon __________ value of AC voltage.
#7. __________ is the combined opposition to current by resistance and reactance.
#8. The armature current drawn by any DC motor is proportional to the __________.
#9. A fluorescent light that blinks “on” and “off” repeatly may in time __________.
#10. Which of the following is not true about alternating current?
#11. Single conductor cable runs within building are generally more common than multicable runs because __________.
#12. A negatively charged body has __________.
#13. 1. Frequency is measured in __________.
#14. An electrical timer switch for lighting is normally connected in __________ with the lighting circuit being controlled.
#15. A capacitor opposes __________.
#16. Electrical appliances are connected in parallel because it __________.
#17. As the power factor of a circuit is increased __________.
#18. The definition of ambient temperature is __________.
#19. The voltage per turn of the primary of a transformer is __________ the voltage per turn of the secondary.
#20. To check voltage to ground, you would check from __________.
#21. DC series motors are used in applications where __________ is required.
#22. The voltage produced by electromagnetic induction is controlled by __________.
#23. Three horsepower is equivalent to __________.
#24. The resistance of an open circuit is equal to __________.
#25. To adjust the voltage generated by a constant speed DC generator, you would change the __________.
#26. On a 120v 1∅ circuit, ground fault protection for personnel operates on the principal of unbalanced current between __________.
#27. The grounded conductor would connect to the __________ of a lampholder.
#28. An example of a “made” electrode would be __________.
#29. A three-phase, 6-pole AC alternator 34 kva, on a Y-connected system. During one complete mechanical rotation (360°C) will have __________ electrical rotations.
#30. A motor enclosure designed and constructed to contain sparks or flashes that may ignite surrounding gas or vapour is called __________.
#31. Tinning rubber insulated twisted cable is done to __________.
#32. A wheatstone bridge is used to measure __________ resistance. I. Low II. Medium III. High
#33. Illumination is measured in __________.
#34. What is the formula to find watt hours?
#35. Of the six ways of producing emf, which method is used the least?
#36. An electrician in the industry would first check the __________ to correct a low power factor.
#37. __________ duty is a type of service where both the load and the time intervals may have wide variations.
#38. The inductive action that causes current to flow on the outside surface of a conductor is known as the __________.
#39. Voltage in a generator is produced by __________.
#40. A single concrete-encased electrode shall be augmented by one additional electrode if it does not have a resistance to ground of __________.
#41. As the power factor of a circuit is increased __________.
#42. In a 3∅ circuit, how many electrical degrees separate each phase?
#43. The generator which is best suited for electroplating power is a __________ generator.
#44. __________ has the highest electrical breakdown strength and longest life over all other materials used for insulation.
#45. What relationship determines the efficiency of electrical equipment?
#46. The AC system is preferred to the DC system because __________.
#47. To change the rotation of a DC motor you would __________.
#48. Electrical continuity is required by the electrical code for metallic conduit __________.
#49. Which of the following would cause the most power to be dissipated in the form of heat?
#50. Sometimes copper conductors are coated (tinned) to help prevent __________.
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