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Flash Cards Practice

1. 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.

Question 1 of 25

2. 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 not less than ________ high at each end of the working space.

Question 2 of 25

3. 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 not less than ________ high at each end of the working space.

Question 3 of 25

4. 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?

Question 4 of 25

5. For a dwelling with 2,600 square feet of habitable space, what is the required minimum number of 115-ampere, 120-volt, general lighting branch circuits?

Question 5 of 25

6. What is the minimum separation for over-head communications wires and cables at any point in the span from the supply service-drops of up to 750 volts?

Question 6 of 25

7. 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.

Question 7 of 25

8. What is the maximum cross-sectional value that conduit under 24 inches long may be filled?

Question 8 of 25

9. 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.

Question 9 of 25

10. Generally, receptacles are required to be ______ feet or more from the inside walls of a pool.

Question 10 of 25

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

Question 11 of 25

12. 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 _____.

Question 12 of 25

13. At least one receptacle outlet shall be installed at each peninsular counter-top space with a short dimension of _________ inches or greater.

Question 13 of 25

14. The clear zone distance from the top of a bathtub rim or a shower stall threshold must be at least_______ ft. horizontally for any parts of chain-, cable- or cord- suspended luminaries, cord-connected luminaries (fixtures), lighting track, pendent, or ceiling-suspended (paddle) fans.

Question 14 of 25

15. The load for household electric clothes dryers in a dwelling unit(s) shall be ________ watts (volts-amperes) or the nameplate rating, whichever is larger for each dryer served.

Question 15 of 25

16. Circuit breakers shall open all grounded conductors.

Question 16 of 25

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

Question 17 of 25

18. 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?

Question 18 of 25

19. What is the minimum volume, in inches, required for a two (2) gang device box that is to contain two (2) size 14/2 AWG with a ground NM cables and two (2) size 12/2 AWG with ground NM cables connected to a duplex receptacle connected to a single-pole switch, which also contain four (4) cable clamps?

Question 19 of 25

20. In a PV system, a ________ is a device meant to change direct-current input to alternating-current output.

Question 20 of 25

21. Receptacles in health care facilities that have isolated grounding terminals as described in 250.146(D) are allowed in the vicinity of patient care areas.

Question 21 of 25

22. The load for household electric clothes dryers in a dwelling unit(s) shall be _______ watts (volt-amperes) or the nameplate rating, whichever is larger, for each dryer served.

Question 22 of 25

23. If multiple rod, pipe, or plate electrodes are installed to meet the grounding requirements shall not be less than _______ apart.

Question 23 of 25

24. What is the minimum size AWG for festoon lighting?

Question 24 of 25

25. 480 Volt lighting in a parking lot is required to be at what height?

Question 25 of 25


 

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