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

10

5

7

6

Question 1 of 25

2. In front of electric equipment, the working space width must be at least ______, or the width of the equipment, whichever is greater.

40 in.

50 in.

30 in.

25 in.

Question 2 of 25

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

200 amperes

90 amperes

80 amperes

100 amperes

Question 3 of 25

4. What is generally the maximum distance above the counter-top for receptacle outlets in dwelling unit kitchens?

30 inches

50 inches

40 inches

20 inches

Question 4 of 25

5. EMT shall be securely fastened in place at least every _______ feet.

11 feet

12 feet

10 feet

9 feet

Question 5 of 25

6. Where a permanently installed outdoor swimming pool is located on residential or commercial properties, at least one (1) single-phase, 125-volt, 15- or 20-ampere receptacle shall be located not less than _____ from and not more than _____ from the inside wall of the swimming pool.

10 feet - 20 feet

6 feet - 20 feet

5 feet - 20 feet

6 feet, 6 inches - 10 feet

Question 6 of 25

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

2

1/0

2/0

1

Question 7 of 25

8. Which of the following shall not be located over the steps of a stairway?

General-use receptacles

Switches controlling luminaires

Junction boxes

Overcurrent devices

Question 8 of 25

9. Service-entrance cables shall be supported by straps or other approved means at intervals not exceeding _______ inches.

20

50

30

40

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.

1/3

1/5

1/2

1/4

Question 10 of 25

11. 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 11 of 25

12. Show window loads shall be computed at 200 volt-amperes per _______ of show window.

2 feet

3 feet

4 feet

1 foot

Question 12 of 25

13. In compliance with the NEC, the total marked rating of a 120-volt, cord-and-plug-connected room air conditioner shall not exceed _____ of the rating of a branch circuit when lighting units, general-use receptacles, or other appliances are supplied from the branch circuit.

40%

50%

70%

80%

Question 13 of 25

14. What is the maximum continuous load for 16 AWG copper?

10 amps

8 amps

12 amps

7 amps

Question 14 of 25

15. In hospital occupancies, the unit load for general lighting must be at least _________ VA per square foot.

1.5 VA

2 VA

1.6 VA

3 VA

Question 15 of 25

16. Where more than one, rod and pipe or plate, electrode are used each electrode of one grounding system shall not be less than _______ from any electrode of another grounding system.

6 feet

7 feet

5 feet

8 feet

Question 16 of 25

17. The National Electrical Code requires that branch-circuit conductors shall have an ampacity of not less than the rating of the branch circuit, if it pertains to conductors of:

multioutlet branch circuits supplying fixed lighting and appliance loads

only individual branch circuits

all branch circuits

multioutlet branch circuits supplying multiple receptacles for cord-and-plug connected portable loads

Question 17 of 25

18. In a dwelling unit where a 125-volt, 15- or 20-ampere receptacle is located under the counter for an in-sink waste disposer, the receptacle must be provided with _____.

GFCI protection only

neither AFCI nor GFCI protection

AFCI protection only

both AFCI and GFCI protection

Question 18 of 25

19. What is the minimum computed branch circuit load, in volt-amps, allowed by the NEC for a branch circuit serving an exterior electric sign, when calculating a building or structure's total load?

1200VA

3000VA

1500VA

1800VA

Question 19 of 25

20. What is the minimum length/space of a wall?

2'

10'

4'

6'

Question 20 of 25

21. The workspace width shall be the width of the equipment or 30" whichever is greater.

True

False

Question 21 of 25

22. An insulated conductor that is intended for use as a grounded conductor where contained in a flexible cord shall be identified by what color?

Black or Orange

Red or Blue

White or Gray

Brown or Yellow

Question 22 of 25

23. True or false: It is permissible to use a metal pole supporting a sign cabinet or sign system to enclose the supply conductors.

False

True

Question 23 of 25

24. What is the minimum clearance that must be maintained between electrical metallic tubing (EMT) and the surface of the roof decking when it is installed under metal-corrugated sheet roof decking?

1-1/2 inch

1-1/4 inch

1-1/3 inch

1-1/6 inch

Question 24 of 25

25. Conductors, including splices and taps, shall not fill gutters more than ______ percent of it's area.

75 percent

77 percent

76 percent

74 percent

Question 25 of 25

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