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1. What is the maximum standard size over current protection device to protect an installed 40-gallon electric water heater with a nameplate rating of 4,500 watts at 240 volts, single phase?

31 amperes

30 amperes

29 amperes

28 amperes

Question 1 of 25

2. 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.

2-1/2

7-1/2

6-1/2

3-1/2

Question 2 of 25

3. For ranges of 8 3/4 kW or more rating, the minimum branch-circuit rating shall be amperes.

50

30

20

40

Question 3 of 25

4. In each dwelling unit, the load shall be computed at __________ volt-amperes for each 2-wire small-appliance branch circuit required.

1500

1400

1300

1600

Question 4 of 25

5. If a panel is slash rated 480/277v what type of rating(s) are the breakers required to have?

480V and 277/480V

480/277V

480V

Question 5 of 25

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

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

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

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.

Question 6 of 25

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

40 inches

30 inches

50 inches

20 inches

Question 7 of 25

8. Appliance receptacle outlets installed in a dwelling unit for specific appliances shall be installed within ____ ft of the intended location of the appliance.

8

3

4

6

Question 8 of 25

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

Overcurrent devices

Switches controlling luminaires

General-use receptacles

Junction boxes

Question 9 of 25

10. 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 _____.

AFCI protection only

neither AFCI nor GFCI protection

both AFCI and GFCI protection

GFCI protection only

Question 10 of 25

11. Branch circuit ratings are identified as circuits under what amperage?

50

100

60

20

Question 11 of 25

12. Receptacles installed in a kitchen to serve counter-top surfaces shall be supplied by not fewer than _______ small-appliance branch circuits.

1

4

2

3

Question 12 of 25

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

13

11

12

10

Question 13 of 25

14. 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

70 degree C

50 degree C

40 degree C

Question 14 of 25

15. Where used outside, aluminum or copper-clad aluminum grounding electrode conductors shall not be terminated within _________ of the earth.

20 inches

18 inches

15 inches

19 inches

Question 15 of 25

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

80 amperes

100 amperes

200 amperes

90 amperes

Question 16 of 25

17. From the inside walls of an indoor installed spa or hot tub to the wall switches, what is the minimum distance?

6'

5 '

3'

10'

Question 17 of 25

18. Auxiliary gutters made of sheet metal must be secured and supported at intervals of ft. or less along their entire length.

3 feet

4 feet

5 feet

6 feet

Question 18 of 25

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

False

True

Question 19 of 25

20. ____ shall not be considered wall space for spacing receptacles in a dwelling unit.

Any space 2 ft or more in width

Fixed room dividers

Fixed panels in exterior walls

Sliding glass doors

Question 20 of 25

21. Receptacles are not allowed to be installed horizontally.

True

False

Question 21 of 25

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

Face-up

Pop-up

Upside down

Question 22 of 25

23. Where conduits enter a switchboard or floor -standing panelboard at the bottom, the conduit including their end fittings, shall not rise more than _____ inches above the bottom of the enclosure.

5

3

2

4

Question 23 of 25

24. What is the minimum size of a rectangular manhole?

24x28

26x22

20x24

12x16

Question 24 of 25

25. Loads for convenience receptacle outlets shall be computed at not less than _________ volt-amperes for each single or for each multiple receptacle on one yoke.

170

150

160

180

Question 25 of 25

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