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1. Service-entrance cables shall be supported by straps or other approved means within _______ of every service head, goose-neck, or connection.

13 inches

12 inches

10 inches

11 inches

Question 1 of 25

2. If a warehouse area is 10,000 square feet for storage and uses high pressure sodium lighting, what is the maximum lighting load?

2625

46

2765

3625

Question 2 of 25

3. All of the following are code violations except:

A single 15 ampere-rated receptacle on a 20 ampere individual branch circuit

A single 15 ampere-rated receptacle on a 15 ampere general-purpose branch circuit

A duplex 20 ampere-rated receptacle on a 15 ampere multiwire branch circuit

A single 30 ampere-rated receptacle on a 40 ampere individual branch circuit

Question 3 of 25

4. True or False: It is permissible to attach, strap, or tape power-limited fire alarm cables to the exterior of a conduit or raceway.

True

False

Question 4 of 25

5. In no case shall both branch and feeder circuits exceed what percentage of voltage drop?

10

3

4

5

Question 5 of 25

6. Conductors in enclosures for switches or over-current devices shall not fill the wiring space at any cross- section to more than ______ of the cross-sectional area of the space.

20 percent

30 percent

40 percent

50 percent

Question 6 of 25

7. What is the minimum rating for a service disconnecting means when supplied with a 120/240-volt, 3-wire, single phase service for a one- family dwelling?

300 amperes

100 amperes

200 amperes

90 amperes

Question 7 of 25

8. Receptacles are not allowed to be installed horizontally.

False

True

Question 8 of 25

9. The ampacity of types NM, NMC, and NMS cable should be determined in accordance with the _______ ( 140 degree F ) conductor temperature rating.

60 degree C

50 degree C

70 degree C

40 degree C

Question 9 of 25

10. In walls or ceilings with a surface of 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.

1/4

1/5

1/2

1/3

Question 10 of 25

11. Receptacles in health care facilities that have isolated grounding terminals as described in 250.146(D) are allowed in the vicinity of patient care areas.

True

False

Question 11 of 25

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

6000 sq. ft

5000 sq. ft.

8000 sq. ft.

7000 sq. ft.

Question 12 of 25

13. In general how many receptacles can be installed on a single 120V 20 amp circuit?

10

11

13

12

Question 13 of 25

14. Where a branch circuit supplies continuous or any combination of continuous and noncontinuous loads, the rating of the overcurrent device shall not be less than the noncontinuous load plus ____ percent of the continuous load.

125

100

115

80

Question 14 of 25

15. For a one-family dwelling, the feeder disconnecting means shall have a rating of not less than _________ amperes, 3-wire.

100

80

200

90

Question 15 of 25

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

18

14

12

10

Question 16 of 25

17. 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.

1/4

1/2

1/5

1/3

Question 17 of 25

18. What is the maximum number of disconnecting means per supply?

1

6

8

4

Question 18 of 25

19. How far must the separation be between any light, power, or Class 1 conductors or radio and television conductors, and underground antenna conductors for radio and television receiving equipment?

12 inches

13 inches

11 inches

10 inches

Question 19 of 25

20. Interior stairs have switches at each end, where the stairway between floor levels has ________ risers or more.

4

7

6

5

Question 20 of 25

21. How many conductors is a single device counted as when it is wider than two (2) inches and installed in a 2-gang divide box?

6

2

4

8

Question 21 of 25

22. A general-use receptacle outlet must be provided in any dwelling unit bedroom wall that is at least ______ wide.

5 feet

6 feet

2 feet

3 feet

Question 22 of 25

23. If the AC load is 15,000va and the heating load is 20,000va which one is used when calculating total load?

AC

Both

Heating

Both + 125%

Question 23 of 25

24. The load for household electric clothes dryers in a dwelling unit(s) shall be _______ watts (volt-amperes) or the nameplate rating, whichever is larger, for each dryer served.

4000

5000

6000

7000

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.

34 pounds

35 pounds

45 pounds

25 pounds

Question 25 of 25

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