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1. 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

1-1/3 inch

1-1/4 inch

Question 1 of 25

2. Receptacle outlets shall be installed so that there is no point on the wall greater than ____ ft from a receptacle outlet in a dwelling unit.

6

3

12

4

Question 2 of 25

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

2

1/0

2/0

1

Question 3 of 25

4. Where a 30-ampere branch circuit serves fixed lighting units, tap conductors to individual luminaires shall be permitted to extend a maximum of ____ in. beyond any portion of the luminaire.

24

6

12

18

Question 4 of 25

5. Final spans to buildings shall be permitted to be attaches to the building, but thy shall be kept not less than _______ from the windows that are designed to be opened.

3 feet

4 feet

2 feet

5 feet

Question 5 of 25

6. What is the minimum watts (VA), other than name plate rating (whichever is larger) clothes dryers are to be calculated at when doing residential feeder and service calculations?

6,000

5,000

2,000

1,000

Question 6 of 25

7. When conductors are installed under at least _______ in. of concrete beneath a building or other structure, they shall be considered outside of a building or other structure.

5

4

6

2

Question 7 of 25

8. Raceways must not be used to support Class 2 or 3 cables.

True

False

Question 8 of 25

9. For equipment rated 1200 amperes or more and over 6 feet wide that contain over-current devices, there shall be one entrance to and egress from the required working space mot less than _______ wide at each end of the working space.

20 inches

30 inches

34 inches

24 inches

Question 9 of 25

10. What total minimum volt-amperes (VA) shall be included when calculating the demand load for small-appliance and laundry circuit loads a one-family dwelling?

3,400

5,300

6,400

4,500

Question 10 of 25

11. 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

two, 1500 VA

three, 2400 VA

Question 11 of 25

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

1300

1000

1200

1100

Question 12 of 25

13. Required 125-volt,15- and 20-ampere receptacles in dwelling units shall not be located higher than _______ feet above the floor.

5-1/2

4-1/2

1-1/2

3-1/2

Question 13 of 25

14. 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?

3000VA

1500VA

1800VA

1200VA

Question 14 of 25

15. A building or other structure served shall be supplied by only __________ service.

1

4

3

2

Question 15 of 25

16. A required 125-volt, 15- and 20-ampere receptacles in dwelling units shall be installed in any wall space _______ feet or more in width.

5

3

4

2

Question 16 of 25

17. Overhead service -drop conductors shall have a vertical clearance of not less than _______ feet above the roof surface.

8

6

4

Question 17 of 25

18. Receptacles shall not be installed in a _________ position in countertop surfaces or work surfaces.

Upside down

Face-up

Pop-up

Question 18 of 25

19. For placement of receptacle outlets in a dwelling unit, a wall space shall include any space ____ ft or more in width (including space measured around corners) and unbroken along the floor line by doorways and similar openings, fireplaces, and fixed cabinets.

6

2

4

3

Question 19 of 25

20. If only 1 conductor is used in a tube of EMT conduit, the total interior area that can be filled is no more than _________ percent.

53

43

83

63

Question 20 of 25

21. Required 125-volt,15- and 20-ampere receptacles in dwelling units shall not be located higher than _______ feet above the floor.

4-1/2

3-1/2

1-1/2

5-1/2

Question 21 of 25

22. EMT shall be securely fastened in place in intervals not to exceed __________ feet.

13

10

11

12

Question 22 of 25

23. In a multi-family dwelling unit, what is the demand factor percentage for 9 household electric clothes dryers?

55 percent

45 percent

40 percent

50 percent

Question 23 of 25

24. What is the maximum rating allowed of any one cord-and-plug-connected appliance connected to a 20-ampere branch circuit?

16 amperes

15 amperes

20 amperes

10 amperes

Question 24 of 25

25. Race-ways installed in solid rock shall be permitted to be buried at lesser depths than required where covered by _________ of concrete, which shall be permitted to extend to the rock surface.

2 inches

5 inches

4 inches

3 inches

Question 25 of 25

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