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Flash Cards Practice

1. Where a 150 kVA, single-phase transformer having a secondary voltage of 120/240 is installed at a multi-family dwelling, the full-load current rating, in amperes, of the secondary is _____.

Question 1 of 25

2. Rod and pipe electrodes shall not be less than ______ in length.

Question 2 of 25

3. 480 Volt lighting in a parking lot is required to be at what height?

Question 3 of 25

4. Where a branch circuit supplies continuous loads or any combination of continuous and non- continuous loads, the minimum branch-circuit conductor size shall have an allowable ampacity not less than the non-continuous load plus ______ of the continuous load.

Question 4 of 25

5. Aluminum, copper-clad aluminum, or copper conductors, for each phase, polarity, neutral, or grounded circuit shall be permitted to be connected in parallel only in sizes __________ and larger.

Question 5 of 25

6. The area around motor fuel dispensing pumps at a service station is considered a hazardous location. How far horizontally from the enclosure of the outdoor motor fuel dispensing pumps does this extend?

Question 6 of 25

7. Conductors in enclosures for switches or over-current devices shall not fill the wiring space at any cross- section to more than ______ of the cross-sectional area of the space.

Question 7 of 25

8. What is the minimum size conductor for 20A branch circuit?

Question 8 of 25

9. Interior stairs have switches at each end, where the stairway between floor levels has ________ risers or more.

Question 9 of 25

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

Question 10 of 25

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

Question 11 of 25

12. If an outlet box is designed to support ceiling suspended (paddle) fans weighing more than ______, then the maximum weight to be supported shall be included in the required marking.

Question 12 of 25

13. What is the maximum number of disconnecting means per supply?

Question 13 of 25

14. 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 14 of 25

15. Where a 30-ampere branch circuit serves fixed lighting units, tap conductors to individual luminaires shall be permitted to extend a maximum of ____ in. beyond any portion of the luminaire.

Question 15 of 25

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

Question 16 of 25

17. 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 17 of 25

18. 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 18 of 25

19. In a store, ground fault circuit interrupter protection for personnel is required for 15 or 20 amperes, 125-volt, single-phase receptacles installed at which of the following locations?

Question 19 of 25

20. For dwelling units, GFCI protection is required for all single-phase, 125-volt, 15- and 20-ampere receptacles installed within six (6) feet of the top inside edge of the bowl of sinks located in _____.

Question 20 of 25

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

Question 21 of 25

22. 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 22 of 25

23. An insulated grounded conductor larger then _______ shall be permitted to be marked with white tape at the time of installation.

Question 23 of 25

24. Unless they are within _______ of the wall, receptacle outlets in floors may not be counted as a part of the minimum required number of receptacle outlets.

Question 24 of 25

25. 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 25 of 25


 

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