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1. For a size 6 AWG THHN copper conductor connected to a fusible disconnect switch with terminals rated for 75 degrees Celsius, what is the maximum current load, in amps?

65 amps

50 amps

75 amps

100 amps

Question 1 of 25

2. When conductors are installed in a conduit or tubing nipple of _____ or less in length, the ampacity adjustment factors for more than three (3) current-carrying conductors in the raceway, are not required to be applied.

24"

30"

48

36"

Question 2 of 25

3. The load for an electric sign or outline lighting system should be computed at a minimum of _______ volt-amps when sizing the service calculation.

1000

1100

1200

1300

Question 3 of 25

4. 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?

1-1/6 inch

1-1/2 inch

1-1/4 inch

1-1/3 inch

Question 4 of 25

5. What is the minimum size conductor for 15A branch circuit?

16

12

18

14

Question 5 of 25

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

11 inches

10 inches

13 inches

12 inches

Question 6 of 25

7. Over what length would 12 awg festoon lighting need to be supported by a messenger wire?

30'

20'

40'

50'

Question 7 of 25

8. Where a 125-volt, 15-ampere receptacle is connected to a 120-volt branch circuit supplying two (2) or more receptacles or outlets, the maximum permitted cord-and-plug-connected load to the receptacle is _____.

12 amperes

10 amperes

15 amperes

7.5 amperes

Question 8 of 25

9. Installation of rigid mental conduit (RMC) is required to be fastened within what minimum distance from a junction box, panel board, or cabinet, where structural members readily permit fastening?

3 feet

4 feet

2 feet

5 feet

Question 9 of 25

10. What is the minimum ampacity of the branch-circuit conductors used to supply a 7-1/2 hp, 240 volts, single-phase induction type, ca motor for continuous duty application?

30 amps

50 amps

55 amps

80 amps

Question 10 of 25

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

40 degree C

70 degree C

50 degree C

60 degree C

Question 11 of 25

12. For a branch-circuit where lighting outlets or general-use receptacles are also supplied, what is the maximum percentage of the rating that may not be exceeded by a cord-and- attachment-plug-connected room air- conditioner?

70%

50%

60%

40%

Question 12 of 25

13. General lighting in dwelling units is requires to have at least _______ VA.

4 VA

2 VA

5 VA

3 VA

Question 13 of 25

14. One receptacle outlet shall be installed at an accessible location for the serving of heating, air-conditioning, and refrigeration within _________ feet and on the same level as the equipment.

25

30

10

15

Question 14 of 25

15. What is the minimum length, in feet, for rod and pipe ground electrodes made of specific materials?

6

8

10

7

Question 15 of 25

16. LFMC must be fastened in place securely by approved means ________ in. or less of each box, cabinet, conduit body, or other conduit termination. Exceptions ignored.

12 in

10 in

25 in

5 in

Question 16 of 25

17. According to the NEC, fixed outdoor deicing and snow melting equipment is to be considered as a _____ load.

simultaneous

non-continuous

intermittent

continuous

Question 17 of 25

18. Installation of rigid mental conduit (RMC) is required to be fastened within what minimum distance from a junction box, panel board, or cabinet, where structural members readily permit fastening?

3 feet

4 feet

5 feet

2 feet

Question 18 of 25

19. If they are served by the same feeder or service in a one-family, two-family, or multi-family dwelling, it is allowable to apply a demand factor of 75 percent to the name plate rating load of ________ or more appliances fastened in place, other than air- conditioning equipment, clothes dryers, electric ranges, or space heating equipment.

7

5

4

6

Question 19 of 25

20. Outlet boxes that do not enclose devices or utilization equipment shall have a minimum internal depth of _________ inch.

1/2

1/3

1/4

1/5

Question 20 of 25

21. The total marked rating of a cord-and-attachment-plug-connected room air conditioner shall not exceed _____ percent of the rating of a branch circuit where no other loads are supplied.

80 percent

60 percent

90 percent

70 percent

Question 21 of 25

22. In each dwelling unit, if the small appliance load is subdivided between two or more feeders, the calculated load for each will include at least ________ for each 2-wire small appliance branch circuit.

1500 volt-amperes

1400 volt-amperes

1700 volt-amperes

1600 volt-amperes

Question 22 of 25

23. For a one-family dwelling and each unit of a two-family dwelling that is at grade level, at least ____ receptacle outlet(s) accessible while standing at grade level and located not more than ____ ft above grade shall be installed at the front and back of the dwelling.

one, 5-1/2

one, 6-1/2

two, 6-1/2

two, 5-1/2

Question 23 of 25

24. A mogul-based lamp holder installed on a 30-ampere branch circuit shall have a rating of at least ____ watts.

660

750

300

250

Question 24 of 25

25. Plug fuses of the Edison-base type shall be classified at not over 125 volts and ________ and below.

40 amperes

30 amperes

50 amperes

20 amperes

Question 25 of 25

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