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Flash Cards Practice

1. 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 1 of 25

2. In front of electric equipment, the working space width must be at least ______, or the width of the equipment, whichever is greater.

Question 2 of 25

3. Final spans to buildings shall be permitted to be attaches to the building, but thy shall be kept not less than _______ from the windows that are designed to be opened.

Question 3 of 25

4. At least ________ of free conductor shall be left at each outlet, junction, and switch point for splices or the connections of luminaries (fixtures) or devices.

Question 4 of 25

5. 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 5 of 25

6. For 1000 volts, nominal or less what is the minimum size copper conductor for spans up to 50'?

Question 6 of 25

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

Question 7 of 25

8. In church occupancies, the required unit load is at least ________ per square foot for general lighting.

Question 8 of 25

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

Question 9 of 25

10. Underground service conductors that are not encased in concrete and that are buried 18 inches or more below grade shall have their location identified by a warning ribbon that is placed in the trench at least ________ above the underground installation.

Question 10 of 25

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

Question 11 of 25

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

Question 12 of 25

13. In general how many receptacles can be installed on a single 120V 20 amp circuit?

Question 13 of 25

14. Sinks located in areas other than kitchens where receptacles are installed within ________ of the outside edge of the sink, require GFCI protection.

Question 14 of 25

15. Fixture wires are allowed to be tapped to a branch circuit. What is the minimum size for a 20 amp circuit?

Question 15 of 25

16. Plug Edison-Base fuses shall be classified at not over 125 volts and ______ amps and below.

Question 16 of 25

17. Circuit breakers used as switches in 120 volt and 277 volt high-intensity lighting shall be marked.

Question 17 of 25

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

Question 18 of 25

19. In front of electric equipment, the working space width must be at least ______, or the width of the equipment, whichever is greater.

Question 19 of 25

20. 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 20 of 25

21. Cord and plug type equipment not fastened in place shall not exceed what percentage of the branch circuit ampere rating?

Question 21 of 25

22. What is the minimum clearance over residential driveways of overhead spans of open conductors of up to 300 volts to ground.

Question 22 of 25

23. 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 23 of 25

24. The length of a pull box containing conductors of size 4 AWG and larger shall not be less than _____ times the trade diameter of the largest conduit entering the box when a straight pull of the conductors is to be made.

Question 24 of 25

25. 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 25 of 25


 

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