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Flash Cards Practice

1. In dwelling units, hallways of _______ feet or more in length shall have at least one receptacle.

Question 1 of 25

2. What is the minimum rating for a service disconnecting means when supplied with a 120/240-volt, 3-wire, single phase service for a one- family dwelling?

Question 2 of 25

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

Question 3 of 25

4. Where a cable or race-way -type wiring method is installed through bored holes in joist , rafters, or wood members, holes shall be bores so that the edge of the hole is not less than _______ from the nearest edge of the wood member.

Question 4 of 25

5. Circuit breakers shall open all grounded conductors.

Question 5 of 25

6. The loads for an electric sign or outline lightning system should be computed at a minimum of _________ volt-amps when sizing the service calculation.

Question 6 of 25

7. If more than 2 conductors are used in a tube of EMT conduit, the total interior area that can be filled is no more than _________ percent.

Question 7 of 25

8. If a warehouse uses mercury vapor lighting in the storage area, and the storage area is 40,500 square feet of space, what is the minimum lighting load?

Question 8 of 25

9. 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.

Question 9 of 25

10. How far must the separation be between any light, power, or Class 1 conductors or radio and television conductors, and underground antenna conductors for radio and television receiving equipment?

Question 10 of 25

11. Plug fuses of the Edison-base type shall be classified at not over 125 volts and ________ and below.

Question 11 of 25

12. Over what length would 12 awg festoon lighting need to be supported by a messenger wire?

Question 12 of 25

13. What is the minimum va for a clothes dryer?

Question 13 of 25

14. In regard to a commercial building, where a service-entrance conduit having a length of six (6) feet contains four (4) size 2 AWG THWN insulated copper current-carrying conductors, each of the conductors have an allowable ampacity of _____.

Question 14 of 25

15. Continuous loads are loads that are expected to run for how many hours?

Question 15 of 25

16. Service - entrance cables shall be supported by straps or other approved means within _______ inches of every service head, goose-neck, or connection to a raceway or enclosure.

Question 16 of 25

17. LFMC must be fastened in place securely by approved means ________ in. or less of each box, cabinet, conduit body, or other conduit termination. Exceptions ignored.

Question 17 of 25

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

Question 18 of 25

19. For a building or structure where the meter enclosure is adjacent to the service disconnecting means, it is permitted to ground the meter enclosure to the _____ conductor on the load side of the service disconnect if ground-fault protection is not provided.

Question 19 of 25

20. Where a permanently installed outdoor swimming pool is located on residential or commercial properties, at least one (1) single-phase, 125-volt, 15- or 20-ampere receptacle shall be located not less than _____ from and not more than _____ from the inside wall of the swimming pool.

Question 20 of 25

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

Question 21 of 25

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

Question 22 of 25

23. Based on the largest conductor connected to the switch, for the purpose of determining conductor fill in a device box, how many conductor(s) is a three-way switch counted as equal to?

Question 23 of 25

24. Conductors, including splices and taps, shall not fill gutters more than ______ percent of it's area.

Question 24 of 25

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

Question 25 of 25


 

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