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Flash Cards Practice

1. An electrode encased by at least 2" of concrete shall be permitted to be 20' of base copper conductor not smaller than _________ AWG.

Question 1 of 25

2. 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 2 of 25

3. What is the smallest size grounding conductor allowed for grounding the structural reinforcing steel of a swimming pool?

Question 3 of 25

4. 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 4 of 25

5. 277 Volt lighting in a tunnel is required to no be less than _____.

Question 5 of 25

6. For placement of receptacle outlets in a dwelling unit, a wall space shall include any space ____ ft or more in width (including space measured around corners) and unbroken along the floor line by doorways and similar openings, fireplaces, and fixed cabinets.

Question 6 of 25

7. Where more than one, rod and pipe or plate, electrode are used each electrode of one grounding system shall not be less than _______ from any electrode of another grounding system.

Question 7 of 25

8. In front of electric equipment, the working space must have space for doors or hinged panels to open ______ degrees or more.

Question 8 of 25

9. 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 9 of 25

10. What is the minimum ampacity of the branch-circuit conductors used to supply a 7-1/2 hp, 240 volts, single-phase induction type, ca motor for continuous duty application?

Question 10 of 25

11. 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 11 of 25

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

Question 12 of 25

13. 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 13 of 25

14. 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 14 of 25

15. For a one-family dwelling and each unit of a two-family dwelling that is at grade level, at least ____ receptacle outlet(s) accessible while standing at grade level and located not more than ____ ft above grade shall be installed at the front and back of the dwelling.

Question 15 of 25

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

Question 16 of 25

17. Overhead service-drop conductors shall not be smaller than ________ copper.

Question 17 of 25

18. 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.

Question 18 of 25

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

Question 19 of 25

20. Connection by means of wire-binding screws or studs and nuts that have upturned lugs or the equivalent shall be permitted for _________ AWG or smaller conductors.

Question 20 of 25

21. Service -entrance cables shall be supported at intervals not exceeding _______ inches.

Question 21 of 25

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

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. Underground service entrance conductors are not permitted in _____.

Question 24 of 25

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

Question 25 of 25


 

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