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1. 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.

25 pounds

35 pounds

34 pounds

45 pounds

Question 1 of 25

2. The lighting demand factor of the first 3000 VA or less in dwelling units is ______ percent.

80

100

90

70

Question 2 of 25

3. Type MC cables containing four or fewer conductors, sized no larger than 10 AWG, shall be secured within ________ of every box, cabinet, fitting, or other cable termination.

13 inches

11 inches

10 inches

12 inches

Question 3 of 25

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

False

True

Question 4 of 25

5. An autotransformer that supplies a 480-volt circuit from a 600-volt system is not required to have a grounded conductor that is electrically connected between the supplying system and the circuit supplied where the autotransformer:

is located at least 8 ft above the floor or working surface.

is in an industrial occupancy and only qualified persons will service the installation.

is connected to a three-phase open delta arrangement.

has no exposed noncurrent-carrying metal parts.

Question 5 of 25

6. What is the minimum clearance for communications wires and cables above all points of roofs above which they pass?

7 feet

9 feet

6 feet

8 feet

Question 6 of 25

7. Fixture wires are allowed to be tapped to a branch circuit. What is the minimum size for a 20 amp circuit?

16 awg

14 awg

10 awg

12 awg

Question 7 of 25

8. For dwelling units, at least one receptacle outlet accessible at grade level and not more than ________ feet above grade shall be installed at the front and back of each dwelling.

6-1/2

3-1/2

7-1/2

2-1/2

Question 8 of 25

9. What is the minimum number of general purpose receptacles required to be readily accessible when installed in sleeping room of dorms, or guest rooms of hotels and motels.

2

6

8

3

Question 9 of 25

10. Overhead conductors for festoon lighting shall not be smaller than ________ unless the conductors are supported by messenger wires.

8 AWG

12 AWG

14 AWG

10 AWG

Question 10 of 25

11. What is the minimum clearance over residential driveways of overhead spans of open conductors of up to 300 volts to ground.

10 feet

15 feet

11 feet

12 feet

Question 11 of 25

12. For the workspace in front of a 120/240-volt, single-phase, 400 amperes rated disconnect switch located in a commercial occupancy, what is the minimum required height?

6-1/2 ft

5-1/2 ft

8 ft

7-1/2 ft

Question 12 of 25

13. There shall be no more than _________ disconnects per supply grouped in any one location.

5

6

7

9

Question 13 of 25

14. A minimum of ____ 20 amp, ____ small-appliance circuits shall supply receptacle outlets located in the kitchen, pantry, breakfast room, and dining room in a dwelling unit.

two, 2400 VA

three, 1500 VA

three, 2400 VA

two, 1500 VA

Question 14 of 25

15. Cord and plug type equipment fastened in place shall not exceed what percentage of the branch circuit ampere rating?

80

50

100

60

Question 15 of 25

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

15 amperes

14 amperes

13 amperes

16 amperes

Question 16 of 25

17. Equipment used outdoors and exposed to rain, snow and sleet must be type _____.

3S and 3X

4X and 3R

3X and 12K

3 and

Question 17 of 25

18. 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.

25 pounds

35 pounds

45 pounds

34 pounds

Question 18 of 25

19. 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?

40%

50%

70%

60%

Question 19 of 25

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

25

55

45

35

Question 20 of 25

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

40 in.

25 in.

50 in.

30 in.

Question 21 of 25

22. 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.

3

5

6

4

Question 22 of 25

23. Non -metallic-sheathed cable shall be secured by staples, cable ties, straps, hangers, or similar fittings at intervals not exceeding __________ feet.

5-1/2

3-1/2

2-1/2

4-1/2

Question 23 of 25

24. A 20 ampere branch circuit is permitted supply lighting units together with utilization equipment in all of the following situations except:

where the rating of any one cord-and-plug-connected utilization equipment not fastened in place does not exceed 80 percent of the branch-circuit rating.

if the utilization equipment is fastened in place.

where the 20-ampere circuit is a small-appliance branch circuit

if the utilization equipment is cord-and-plug connected.

Question 24 of 25

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

18 feet

15 feet

17 feet

20 feet

Question 25 of 25

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