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Flash Cards Practice

1. Type MC cable shall be supported and secured at intervals not exceeding ________ feet.

Question 1 of 25

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

Question 2 of 25

3. If they are served by the same feeder or service in a one-family, two-family, or multi-family dwelling, it is allowable to apply a demand factor of 75 percent to the name plate rating load of ________ or more appliances fastened in place, other than air- conditioning equipment, clothes dryers, electric ranges, or space heating equipment.

Question 3 of 25

4. Outlet boxes that do not enclose devices or utilization equipment shall have a minimum internal depth of _________ inch.

Question 4 of 25

5. What is the minimum vertical clearance from final grade for open overhead service conductors up to 1000 volts over public driveways?

Question 5 of 25

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

Question 6 of 25

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

Question 7 of 25

8. Installation of rigid mental conduit (RMC) is required to be fastened within what minimum distance from a junction box, panel board, or cabinet, where structural members readily permit fastening?

Question 8 of 25

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

Question 9 of 25

10. For multi-conductor or multiplexed single conductor cables having individually shielded conductors, the minimum bending radius is _________ the diameter of the individually shielded conductors or 7 times the overall diameter, whichever is greater.

Question 10 of 25

11. What size overcurrent protection device is required for a branch circuit with a continuous load of 80 amps with 75 degrees C terminals and 3 AWG cu THWN conductors?

Question 11 of 25

12. 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 12 of 25

13. What is the minimum weight of a manhole cover?

Question 13 of 25

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

Question 14 of 25

15. Where a cable- or raceway-type wiring method is installed through bored holes in joists, rafters, or wood members, holes shall be bored so that the edge of the hole is not less than ______ inches from the nearest edge of the wood member.

Question 15 of 25

16. 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 16 of 25

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

Question 17 of 25

18. Circuit breakers used as switches, and switches containing fuses, shall be in a location so that they can be operated from a readily accessible place, and must be placed so that when the center of the grip of the operating handle of the circuit breaker or switch is in it's highest position, it is _______ or less above the working platform or floor. Exceptions ignored.

Question 18 of 25

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

Question 19 of 25

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

Question 20 of 25

21. 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 21 of 25

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

Question 22 of 25

23. 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 23 of 25

24. For circuits supplying loads consisting of motor - operated utilization equipment that is fastened in place and has a motor larger than 1/8 hp in combination with other loads, the total computed load shall be based on _______ of the largest motor load plus the sum of the other loads.

Question 24 of 25

25. When a 20-ampere branch circuit serves a single receptacle outlet, the rating of the receptacle generally must be at least:

Question 25 of 25


 

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