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1. A grounding conductor is what color?

White

Gray

Brown

Green

Question 1 of 25

2. What is the minimum vertical clearance from final grade for open overhead service conductors up to 1000 volts over public driveways?

20 feet

17 feet

18 feet

15 feet

Question 2 of 25

3. In a dwelling unit basement, a 125 volt, 15 or 20 ampere, single-phase receptacle supplying only a permanently installed ____ shall not be required to have ground fault circuit interrupter protection.

gas dryer

clothes washer

fire alarm or burglar alarm system

sump pump

Question 3 of 25

4. What is the minimum volume, in inches, required for a two (2) gang device box that is to contain two (2) size 14/2 AWG with a ground NM cables and two (2) size 12/2 AWG with ground NM cables connected to a duplex receptacle connected to a single-pole switch, which also contain four (4) cable clamps?

29 cubic inches

28 cubic inches

31 cubic inches

30 cubic inches

Question 4 of 25

5. If more than 2 conductors are used in a tube of EMT conduit, the total interior area that can be filled is no more than _________ percent.

50

20

40

30

Question 5 of 25

6. In front of electric equipment, the working space must have space for doors or hinged panels to open ______ degrees or more.

100 degrees

80 degrees

90 degrees

75 degrees

Question 6 of 25

7. From the inside walls of an indoor installed spa or hot tub to the wall switches, what is the minimum distance?

3'

6'

10'

5 '

Question 7 of 25

8. Live parts of electrical equipment operating at ________ nominal shall be guarded against accidental contact.

50 to 1000 V

12 to 24 V

300 to 600 V

12 to 50 V

Question 8 of 25

9. What is the minimum size for single conductors in cable tray as a service entrance.

1/0

2

1

2/0

Question 9 of 25

10. The MINIMUM length of free conductor to be left at each junction box for the purpose of splicing conductors, or making connections to luminaires or devices shall be _____ .

4"

8"

6"

10"

Question 10 of 25

11. If a warehouse uses mercury vapor lighting in the storage area, and the storage area is 40,500 square feet of space, what is the minimum lighting load?

30,375VA

10,125VA

20,250VA

8,850VA

Question 11 of 25

12. Plug fuses of the Edison-base type shall be classified at not over 125 volts and _______ amperes and below.

20

30

70

50

Question 12 of 25

13. If a branch circuit served by 12 AWG conductors is protected by a 15-ampere circuit breaker, what kind of rating does it have?

14 amperes

16 amperes

13 amperes

15 amperes

Question 13 of 25

14. Within or behind a surface of concrete, tile, gypsum, plaster, or other non-combustible material, boxes shall be installed so that the front edge of the box will not be set back of the finished surface more than ______ inch.

1/5

1/3

1/2

1/4

Question 14 of 25

15. What is the minimum clearance for conductors less than 1,000 volts over a sidewalk?

8'

12'

10'

18'

Question 15 of 25

16. For installations to supply only limited loads of a single branch circuit, the branch circuit disconnecting means shall have a rating of not less than _________.

12 amperes

10 amperes

20 amperes

15 amperes

Question 16 of 25

17. Aluminum, copper-clad aluminum, or copper conductors, for each phase, polarity, neutral, or grounded circuit shall be permitted to be connected in parallel only in sizes __________ and larger.

4/0

1/0

2/0

3/0

Question 17 of 25

18. Which of the following is not a standard ampere rating for a circuit breaker?

75

60

70

45

Question 18 of 25

19. What is the minimum separation for over-head communications wires and cables at any point in the span from the supply service-drops of up to 750 volts?

13 inches

12 inches

10 inches

11 inches

Question 19 of 25

20. Final spans to buildings shall be permitted to be attached to the building, but they shall be kept not less than _______ feet from windows that are designed to be opened.

4 feet

6 feet

5 feet

3 feet

Question 20 of 25

21. True or false: If fire alarm cable is abandoned, the accessible portions must be removed.

True

False

Question 21 of 25

22. What is the minimum size conductor for 20A branch circuit?

12

18

14

10

Question 22 of 25

23. Final spans to buildings shall be permitted to be attached to the building, but they shall be kept not less than _______ feet from windows that are designed to be opened.

5

6

3

4

Question 23 of 25

24. What is the maximum square footage an office building could have with a calculated lighting load of 24,500 VA.

7000 sq. ft.

8000 sq. ft.

6000 sq. ft

5000 sq. ft.

Question 24 of 25

25. If an outlet box is designed to support ceiling suspended (paddle) fans weighing more than ______, then the maximum weight to be supported shall be included in the required marking.

35 pounds

25 pounds

34 pounds

45 pounds

Question 25 of 25

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