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1. In dwelling units, receptacle outlets installed for countertop surfaces, must be located above, but NOT more than _____ above the countertop or work surface.

20"

12"

24

18"

Question 1 of 25

2. Underground service entrance conductors are not permitted in _____.

EMT

PVC

RMC

IMC

Question 2 of 25

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

7 amps

8 amps

12 amps

10 amps

Question 3 of 25

4. Flexible metal conduit or liquid tight flexible metal conduit not exceeding ______feet in length shall be permitted to be employed for raceway connection to a motor terminal enclosure.

6 feet

5 feet

7 feet

9 feet

Question 4 of 25

5. True or false: The NEC does NOT cover installations in ships, aircraft, or underground mines.

True

False

Question 5 of 25

6. 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

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

all branch circuits

Question 6 of 25

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

35

45

25

55

Question 7 of 25

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

3-1/2

5-1/2

4-1/2

2-1/2

Question 8 of 25

9. For general lightning in restaurant occupancies, a unit load of at least ________ VA per square foot is required.

2 VA

3 VA

4 VA

1 VA

Question 9 of 25

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

14 AWG

10 AWG

8 AWG

12 AWG

Question 10 of 25

11. Thermal insulation shall not be installed above a recessed luminaire (fixture) or within _______ inches of the recessed luminaires (fixtures) enclosure, wiring compartment, or ballast unless it is identified for contact within insulation, Type IC.

5

3

4

2

Question 11 of 25

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

5

4

7

6

Question 12 of 25

13. Live parts of electrical equipment operating at ________ nominal shall be guarded against accidental contact.

50 to 1000 V

12 to 24 V

12 to 50 V

300 to 600 V

Question 13 of 25

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

80 amperes

90 amperes

100 amperes

200 amperes

Question 14 of 25

15. General lighting in dwelling units is required to have a unit load of at least _______ VA.

5

6

3

4

Question 15 of 25

16. If a panel is straight rated 480v what type of rating(s) are the breakers required to have?

480V

277/480V and 480V

277/480V

Question 16 of 25

17. True or false: If fire alarm cable is abandoned, the accessible portions must be removed.

False

True

Question 17 of 25

18. Circuit breakers used as switches in 120 volt and 277 volt high-intensity lighting shall be marked.

SWD and HID

SWD

SWD or HID

HID

Question 18 of 25

19. For installations consisting of not more than two 2-wire branch circuits, the feeder or branch - circuit disconnecting means shall have a rating of not less than __________.

40 amperes

20 amperes

15 amperes

30 amperes

Question 19 of 25

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

has no exposed noncurrent-carrying metal parts.

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

is connected to a three-phase open delta arrangement.

Question 20 of 25

21. 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.

70%

50%

80%

40%

Question 21 of 25

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

80

100

200

90

Question 22 of 25

23. Over head spans of open conductors and open multi-conductor shall be ________ over residential property and driveways where the voltage does not exceed 300 volts to ground.

11 feet

12 feet

10 feet

13 feet

Question 23 of 25

24. Trees can be used as supports for overhead conductors.

True

False

Question 24 of 25

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

12 feet

9 feet

11 feet

10 feet

Question 25 of 25

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