PRACTICE EXAM

83. For circuits and equipment operating at less than 50/volts, the conductors shall not be smaller than ____ AWG. A. #14 B. #12 C. #10 D. #16

#12

77. What is the minimum size conductor for festoon lighting? A. #8 AWG B. #10 AWG C. #12 AWG D. #14 AWG

#12 AWG

96. The conductor of non-metallic sheathed cable shall be a maximum size of? A. 2/0AWG B. 1/0AWG C. #2AWG D. #4AWG

#2AWG

25. A 21 foot long hallway in a dwelling unit requires how many receptacles? A. 1 B. 2 C. 3 D. None

1

33. What is the minimum and maximum size for EMT? A. 3/8" - 6" B. 3/8" - 4" C. ½" - 4" D. ½" - 6"

1/2" - 4"

50. The ampacity of the conductor from a generator terminals to the first overcurrent device shall be a minimum of ______ of the generators nameplate current rating. A. 125% B. 115% C. 100% D. 80%

115%

18. Each motor compressor shall be protected against overload and failure to start by a separate overload relay. This device shall be rated to trip at not more than ____ % of the motor compressors rated load current. A. 115% B. 125% C. 140% D. 300%

140%

97. What is the minimum and maximum length of cord supplying a garbage disposal? A. 18" & 24" B. 18" & 30" C. 18" & 36" D. 12" & 24"

18" & 36"

46. Each duplex receptacle installed in a commercial occupancy is computed at. A. 90VA B. 180VA C. 360VA D. 240VA

180VA

24. What is the minimum number of small appliance branch circuits required in a dwelling unit? A. 1 B. 2 C. 3 D. 4

2

58. What is the current in a 480 volt, 5kw 3-phase circuit? A. 10.41 amps B. 11.5 amps C. 16.2 amps D. 6.02 amps

6.02

84. What is the minimum number of small appliance branch circuits required in a dwelling unit? A. 1 B. 2 C. 3 D. 4

2

81. The minimum required burial depth for rigid metal conduit installed in a parking lot is? A. 18" B. 24" C. 12" D. 6"

24"

73. Name three parts of a very basic transformer. A. Fuses, conductors, and housing B. Core, primary, and secondary windings C. Three shunt windings D. Core, taps, and one winding

Core, primary, and secondary windings

89. A NEMA 3R enclosure is designed to withstand all but. A. Rain B. Corrosive agents C. Snow D. Sleet

Corrosive agents

7. Type THHN in wet locations shall have a maximum operating temperature of. A. 90* C B. 75* C C. 90* F D. 75* F

75° C

13. What article covers receiving equipment antenna systems? A. 800 B. 810 C. 820 D. 830

810

69. A branch circuit that supplies a number of outlets for lighting and power is what type of circuit? A. An appliance branch circuit B. A dual purpose branch circuit C. A general purpose branch circuit D. Multi-wire branch circuit

A general purpose branch circuit

100. When an enclosure has been constructed so that exposure to a beating rain will not result in the entrance of water under specific test conditions, the enclosure is known as? A. Rainproof B. Rain-tight C. Drip proof D. Water resistant

Rain-tight

26. A circuit breaker used to switch a fluorescent lighting fixture shall be marked; A. SW B. FLO C. SWD D. HID

SWD 240.83(D) Circuit breakers used as switches in 120-volt and 277-volt fluorescent lighting circuits shall be listed and shall be marked SWD

39. An electric sign installed inside a fountain shall be A. A maximum of 6ft high B. A maximum of 100 watts C. Minimum of 5 measured from the outside edge D. Prohibited

Minimum of 5 measured from the outside edge

93. The minimum size of the copper grounding electrode conductor, run solely to a driven ground rod when the service entrance conductors are 500/kcmil is? A. 1/0 AWG B. #2 AWG C. #4 AWG D. #6 AWG

#6 AWG

42. The conductor for bonding non-current carrying metal parts of a swimming pool shall be copper and a minimum of. A. #8 AWG. stranded B. #8 AWG solid C. #6 AWG stranded D. #4 AWG stranded or solid

#8AWG solid

75. How many receptacles are required in a residential hallway 12 feet in length? A. 1 B. 2 C. 3 D. None

1

56. In indoor wet locations, where walls are frequently washed down, surface mounted EMT shall be mounted so that there is at least ____ air space between it and the wall. A. ¼" B. 3/8" C. ½" D. 1"

1/4"

59. What is the maximum time allowed for an emergency generator to transfer load upon loss of normal power? A. 15 seconds B. 10 seconds C. 5 seconds D. 20 seconds

10 seconds

72. Electrical metallic tubing shall be supported at least every. A. 4' B. 3' C. 10' D. 2'

10'

22. When using two 12V in parallel the total voltage is? A. Zero B. 12V C. 24V D. None of the above

12 Volts

16. Fire pump controllers and transfer switches shall be located at least ____ inches above finished floor A. 12" B. 24" C. 36" D. 48"

12"

21. Fixture tap conductors suitable for the temperature encountered shall be permitted to run from the fixture terminal connection to an outlet box placed at least ____ distance from the fixture. A. 18" B. 24" C. 12" D. 36"

12"

94. Communication service drop shall maintain a minimum separation of ____ inches from supply service drops at any end span including the point of attachment. A. 6" B. 8" C. 12" D. 16"

12"

2. Plug fuses of Edison-base type shall be rated not over_____ volts and ____ amps. A. 125V, 20A B. 125V, 15A C. 250V, 20A D. 125V, 30A

125volts, 30amps 240.51 Edison-Base Fuses. (A) Classification. Plug fuses of the Edison-base type shall be classified at not over 125 volts and 30 amperes and below.

88. Capacitor circuit conductors must have an ampacity at least what percent of the rated current of the capacitor? A. 135% B. 125% C. 115% D. 80%

135%

27. What is the minimum size EMT required for 3 THHN, 4/0 conductors? A. 1" B. 1 ½" C. 2" D. 1 ¼"

2"

15. A metal light pole shall have a hand hole dimensions no less than A. 2" x 3" B. 3" x 3" C. 2" x 4" D. 4" x 4"

2" × 4"

95. The point of entry for communication wiring and cable shall be within ____ feet of the electrical service entry point. A. 20' B. 25' C. 16' D. 10'

20'

5. Show window lighting shall have a computed load of not less than ______ VA per linear foot. A. 180VA B. 200VA C. 150VA D. 480VA

200VA 220.14 Other Loads (G) Show Windows. (2) At 200 volt-amperes per linear 300 mm (1 ft) of show window

71. An incandescent lamp has a resistance of 104/ohms when 2 amperes of current flow. What is the voltage? A. 240V B. 208V C. 120V D. 12V

208 volts

32. What is the minimum ampere rating of a small appliance branch circuit? A. 15A B. 20A C. 25A D. 30A

20A

34. What is the adjusted capacity for 6 current carrying, #2awg? THWN conductors in a raceway when the ambient temperature is 30 degrees C? A. 20A B. 25A C. 29A D. 30A

20A

19. What is the total resistance of a 100 ohm, a 75 ohm, and a 50 ohm resistor connected in series? A. 23 ohms B. 225 ohms C. 2.25 ohms D. None of the above

225 ohms

29. What is the minimum size entrance to a workspace containing service equipment that is 6 1/2 feet wide and rated 1200 Amos, 480 volts? A. 36" x 6 ½ ft B. 24"x 6 ½ ft C. 24" x 6ft D. 36"x 6ft

24" × 6 1/2 ft

91. The NEC article for grounding is? A. 210 B. 230 C. 250 D. 240

250

78. How many supports are required on a lighting track made of two four foot sections? A. 2 B. 3 C. 4 D. 5

3

67. A continuous load is a load where the maximum current is expected to continue for. A. 1 hour B. 2 hours C. 3 hours D. 4 hours

3 hours

23. When sizing the ventilating openings for a transformer vault, the net area of all openings shall not be less than ____ per value transformer capacity? A. 2 sq inches B. 4 sq inches C. 3 sq inches D. 5 sq inches

3 sq. inches

54. The minimum number of dwelling units needed to identify a building as a "multi-family" dwelling is? A. 1 unit B. 2 units C. 3 units D. 4 units

3 units

51. The minimum required depth of workspace in front of a Panelboard is? A. 36" B. 30" C. 42" D. 24"

36"

82. The required GFCI receptacle installed in a bathroom shall be located within ____ inches of the inside edge of the basin? A. 24" B. 36" C. 30" D. 18"

36"

62. What is the VA per square foot value used to calculate the load in a Beauty shop? A 3 ½VA B. 3VA C. 2VA D. 1 ½VA

3VA

49. What is the total resistance of three 12/ohm resistors connected in parallel? A. 12 ohms B. 36 ohms C. 4 ohms D. 8 ohms

4 ohms

57. What is the branch circuit load for a 16.75kw range in a dwelling unit? A. 40 amps B. 41.67 amps C. 45 amps D. 47.5 amps

41.67 amps

55. The maximum number of circuit breakers allowed in a lighting and appliance branch circuit panel-board is? A. 42 B. 44 C. 46 D. Unlimited

42

14. A storable swimming pool or wading pool is capable of holding water to a maximum depth of A. 30" B. 36" C. 42" D. 60"

42 inches

31. The voltage drop of a feeder plus branch circuit should not exceed: A. 3% B. 5% C. 7% D. 10%

5%

64. What is the maximum spacing between support for 2" rigid non-metallic conduit? A. 3' B. 5' C. 6' D. 8'

5'

60. What is the distance associated with the term "within sight of"? A. 10 feet B. 20 feet C. 25 feet D. 50 feet

50 feet

99. Outlet boxes shall be permitted to support fixtures weighing less than? A. 25lb B. 6lb C. 30lb D. 50lb

50 pounds

63. What is the full load current of a 5 horsepower 115 volt AC motor? A. 33 amps B. 40 amps C. 56 amps D. 17.5 amps

56 amps

80. The Service Disconnecting Means can consist of up to what number of circuit breakers without a main disconnect? A. 2 B. 4 C. 6 D. 8

6

38. A receptacle installed for cord and plug connected appliance shall be installed within ____ feet of the appliance. A. 3 ft B. 4 ft C. 5 ft D. 6 ft

6 ft.

How many VA does a 30A, 240V single phase load draws? A. 8 B. .125 C. 12,450 D. 7,200

7,200VA

53. The conductor of non-metallic sheathed cable shall be rated at. A. 60 degrees C B. 75 degrees C C. 85 degrees C D. 90 degree C

90° C

40. If a voltmeter is connected to a circuit in parallel, the result will be A. The meter will blow a fuse B. A short circuit C. A correct reading D. An incorrect reading

A correct reading

70. Which of the following describes festoon lighting? A. A string of outdoor light that is suspended between two points. B. A 600V lighting system used in power plants. C. Low voltage lighting used on buildings. D. Underwater lighting in pools and ponds.

A string of outdoor light that is suspended between two points.

41. In a close closet, which one of the following would not be allowed to be installed 6" off the shelf? A. A totally enclosed, surface mounted, incandescent fixture. B. A totally enclosed, recessed incandescent fixture. C. An exposed, surface mounted, fluorescent fixture. D. A recessed fluorescent fixture.

A totally enclosed, surface mounted, incandescent fixture.

20. The current of an inductive motor is. A. DC B. AC C. AC/DC D. Reactive

AC

92. An equipment grounding conductor shall be routed with. A. The hot conductors B. All conductors C. The neutral conductors D. Separately

All conductors

61. What article is used to determine the ampacity of flexible cords and cables? A. 220 B. 440 C. 422 D. 400

Article 400

1. Tests and maintenance on emergency systems shall be scheduled by. A. Electrical contractors B. Electrical engineers C. Authority having jurisdiction D. Fire inspector

Authority having jurisdiction 700.3 Tests and Maintenance. (A) Conduct or Witness Test. The authority having jurisdiction shall conduct or witness a test of the complete system upon installation and periodically afterward.

90. An equipment grounding conductor run to the service shall be bonded to: A. The grounding electrode conductor B. The neutral conductor C. Both the neutral and the grounding electrode conductor D. Equipment grounding bus bar

Both the neutral and the grounding electrode conductor

68. "Accessible" as applied to electrical wiring means. A. Rendered inaccessible by the structure or finish of the building. B. Capable of being reached quickly. C. Capable to being removed without damage. D. Admitting close approach.

Capable to being removed without damage.

4. What is the definition of a location not normally subject to dampness or wetness? A. Damp location B. Dry location C. Hazardous location D. Dusty location

Dry location ARTICLE 100 Definitions: Location, Dry. A location not normally subject to dampness or wetness.

98. Where is Arc-Fault Circuit Interrupter Protection required? A. Bathrooms B. Kitchen C. Dwelling unit bedrooms D. Laundry

Dwelling unit bedrooms

79. What two electrical units are multiplied together to obtain watts? A. E and I B. R and P C. P and E D. R and E

E and I

48. A clamp-on ammeter is connected by. A. Red lead to hot white to ground. B. Encircling both the hot and neutral. C. Encircling only one conductor. D. Directly plugging in.

Encircling only one conductor.

36. "Horsepower" is a measure of A. Electric power B. Energy C. Watts D. Amperes

Energy

85. Which of the following would be counted towards box fill calculations? A. Connectors B. Equipment grounding conductors C. Lock-nuts D. Pigtails

Equipment grounding conductors

35. In a clothes closet, which of the following would be allowed? A. A chain hung fixture B. Porcelain base lamp holder C. Partially exposed incandescent fixture D. Exposed surface mounted fluorescent fixture

Exposed surface mounted fluorescent fixture

66. Which wiring system is designed for installation under carpet squares? A. Multi-outlet assembly B. Flat conductor cable C. Flat assemblies D. Raceways

Flat conductor cable

65. Which of the following colors cannot be used for the grounded conductor? A. White B. Green C. Natural gray D. Three continuous stripes on a background other than green

Green

9. The letters "ZP" on the name plate of a motor represents. A. Inductance B. Zero power factor C. Impedance protected D. Resistance

Impedance protected 430.7 (14) A motor complying with 430.32(B)(4) shall be marked "Impedance Protected." Impedance-protected motors rated 100 watts or less and complying with 430.32(B)(4) shall be permitted to use the abbreviated marking "Z.P."

47. Emergency circuit wiring is allowed to occupy the same enclosure as normal wiring. A. In junction boxes larger than 6"x 6". B. In junction boxes adjacent to exit signs. C. In junction boxes attached to exit signs. D. Never

In junction boxes attached to exit signs.

43. A transformer is required to be readily accessible except. A. Indoors B. In the open on a wall C. Inside a fire rated room D. Outdoors

In the open on the wall

12. Thermal overloads are used to protect. A. Breakers B. Controllers C. Motors D. Transformers

Motors

44. A receptacle with an isolated equipment ground is required to be marked with a (an). A. Green dot B. IEGC C. Orange triangle D. IG

Orange triangle 406.3 Receptacle Rating and Type. (D) Isolated Ground Receptacles. Receptacles incorporating an isolated grounding conductor connection intended for the reduction of electrical noise (electromagnetic interference) as permitted in 250.146(D) shall be identified by an orange triangle located on the face of the receptacle.

37. Emergency circuit wiring is allowed to occupy the same raceway as A. Low voltage circuits B. Other emergency circuits supplied from the same source. C. Lighting circuits D. Telephone cables

Other emergency circuits supplied from the same source.

28. A dry type transformer is required to be installed in a vault when it is rated: A. Over 122 ½ KVA B. Over 35,000 volts C. Always D. Under 112 ½ KVA

Over 35,000 volts

11. What is the formula for power? A. E = I x R B. I = E / R C. P = E x I D. P = E / R

P = E × I

10. What type of circuit is formed when two resistors have both ends connected to each other? A. Short circuit B. Series circuit C. Parallel circuit D. Combination circuit

Parallel circuit

6. Metal poles supporting light fixtures shall be permitted to be used as. A. Disconnects B. Festoon lighting C. Area lighting D. Raceways

Raceways 410.30(B) Metal or Nonmetallic Poles Supporting Luminaires. Metal or nonmetallic poles shall be permitted to be used to support luminaires and as a raceway to enclose supply conductors.

87. What electro-magnetic device permits control of current of one circuit by a much smaller current in another circuit? A. Heater B. Governor C. Relay D. Regulator

Relay

3. A fuse or an over-current trip unit of a circuit breaker shall be connected to each underground conductor in. A. Series B. Parallel C. Series, Parallel Combination D. Not required

Series 240.15 Ungrounded Conductors. (A) Overcurrent Device Required. A fuse or an overcurrent trip unit of a circuit breaker shall be connected in series with each ungrounded conductor.

76. What are two types of induction motors? A. Synchronous/Squirrel cage B. Synchronous/ Wound rotor C. Capacitor/Squirrel cage D. Squirrel cage/Wound rotor

Squirrel cage / Wound rotor

45. A type of insulation that would be allowed within 3" of fluorescent lighting fixture ballast would be. A. THWN B. THHN C. TW D. RH

THHN

52. The best type of overcurrent protection for a motor is? A. Time delay fuses B. Non-time delay fuses C. Inverse time circuit breaker D. Instantaneous trip circuit breaker

Time delay fuses

86. Which of the following pieces of equipment changes voltage? A. Generator B. Motor C. Transformer D. Rectifier

Transformer

30. The ground conductor of a circuit shall be colored: A. Green B. Black C. White D. Orange

White

74. Which is the correct identification of terminals for the neutral, equipment ground and unground conductor on a receptacle? A. White=equipment ground, Green=neutral, Brass=ungrounded conductor. B. White= neutral, Green= equipment ground, Brass=ungrounded conductor. C. White= ungrounded conductor, Green= equipment ground, Brass= neutral. D. White= neutral, Green= ungrounded, Brass=equipment ground.

White = neutral, Green = equipment ground, Brass = ungrounded conductor.