#1. The phenomenon whereby a circuit stores electrical energy is called __________.
#2. A switch intended for use in general distribution and branch circuits. It is rated in amperes, and it is capable of interrupting its rated current at its rated voltage, is a __________ switch.
#3. __________ can be generated. I. Electricity II. Electrical Energy
#4. The permanent joining of metallic parts to form an electrically conductive path that will ensure electrical continuity and the capacity to conduct safely any current likely to be imposed is known as __________.
#5. An instrument that is used to measure the diameter of a wire or cable to thousandths of an inch is a __________.
#6. A __________ is a braking system for an electric motor. I. Friction braking II. Plugging III. Dynamic braking
#7. Rigid metal conduit is permitted for wiring in hazardous locations if the conduit is threaded and made up wrench tight with at least __________ full threads.
#8. A circuit breaker that has purposely introduced a delay in the tripping action and which delay decreases as the magnitude of the current increases is a __________ circuit breaker.
#9. It is the intent of this Code that factory installed internal wiring or the construction of equipment need not be inspected at the time of installation of the equipment, except to __________. I. Detect alteration II. Detect damage III. Detect insulation type
#10. A premises wiring system whose power is derived from a source such as a transformer that has no direct connection to the supply conductors originating in another system is a/an __________ system.
#11. A general term including material, fittings, devices, appliances, fixtures, apparatus, and the like used as a part of, or in connection with, an electrical installation is __________.
#12. Where conductors with an ampacity higher than the ampere rating or setting of the overcurrent device are used, the __________ shall determine the circuit rating.
#13. __________ are permitted to protect motor branch circuit conductors from overload. I. Thermal relay II. Inverse time circuit breakers III. Time delay fuses
#14. The power factor of an incandescent light bulb would be __________.
#15. When alternating current flows through a conductor, there is an inductive action that causes the current in the conductor to be forced toward the outer surface. The current is greater at the surface than at the center of the conductor, this __________ will cause the resistance in the conductor to increase due to the increased heating of the conductor.
#16. __________ is a pliable raceway. I. EMT II. ENT III. PVC
#17. Listed or labelled equipment shall be installed, used, or both, in accordance with any instructions included __________. I. By the foreman II. In the listing or labelling III. With the equipment from the manufacturer
#18. Flexible cords and cables shall be protected by __________ where passing through holes in covers, outlet boxes, or similar enclosures. I. Fittings II. Bushings III. Tie wraps
#19. A transformer would most likely have __________ efficiency.
#20. A value assigned to a circuit or system for the purpose of conveniently designating its voltage class is __________.
#21. A type of AC motor that runs at a constant speed and is used for such purposes as an electric clock motor is a __________ motor.
#22. __________ is/are classified as a conduit body. I. LB fittings II. FS fittings III. LR fittings
#23. __________ raceways are not suitable to enclose conductors that are subject to physical damage.
#24. A low power factor in an industrial plant is most likely caused by __________.
#25. __________ is the resistance at the point of contact of two conductors or one conductor and another surface.
#26. Where lighting outlets are installed in interior stairways, there shall be a wall switch at each floor level to control the lighting where the difference between floor levels is __________ steps or more.
#27. A voltage or current that is reversed at regular intervals is called __________ voltage or current. I. Direct II. Steady state III. Sinusoidal
#28. Of the following __________ is a false statement.
#29. It is generally not good practice to supply lights and motors from the same circuit because __________.
#30. In general, motors are designed to operate in a maximum ambient temperature of __________ unless specifically designed for a higher temperature.
#31. A type of single phase motor that can be operated on either AC or DC is a __________ motor.
#32. For screw shell devices with attached leads, the conductor attached to the screw shell shall be __________ in color.
#33. Brach circuit conductors shall have an ampacity not less than __________.
#34. A switch when intended for isolating an electric circuit from the source of power that has no interrupting rating, and it is intended to be operated only after the circuit has been opened by some other means is a/an __________.
#35. Raceways or cable trays containing electric conductors shall not contain __________. I. Pipe for steam II. Tube for air III. Pipe for water
#36. Not readily accessible to persons unless special means for access are used is __________.
#37. After cutting conduit, to remove the rough edges on both ends, the conduit ends should be __________.
#38. A resistor has an indicated tolerance error of 10%. With a value of 1000 ohms, the minimum resistance the resistor may have is __________.
#39. The instrument used to indicate phase relation between current and voltage is the __________.
#40. To calculate the va, one needs to know the __________.
#41. You have an adjustable trip coil rated at 5 amps on a 200-amp switch. If you want to switch to trip at 120 amps, the trip coil should be set at __________.
#42. A transformer has a primary voltage of 120 volts and a secondary voltage of 480 volts. If there are 40 turns on the primary, the secondary contains __________.
#43. When an ammeter is disconnected from an in-service current transformer, the secondary terminals of the current transformer must be __________.
#44. Motors 1/3, 1⁄4, and 1/8hp are connected parallel. Those motors deliver a total of __________.
#45. Flexible cords and cables shall not be used __________.
#46. To convert AC to DC you will use ________.
#47. A fixture that weighs more than __________ shall be supported independently of the outlet box.
#48. Reactance will cause the current in a circuit to vary only when __________.
#49. The force which moves electrons from atom to atom through a closed conducting path is called __________.
#50. An advantage of a 240-volt system compared with a 120-volt system of the same wattage is __________.
Results
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