NEC Code Section 314

13. A wood brace that is used for mounting a box must have a cross-section not less than nominal _____________. (a) 1 x 2 in. (b) 2 x 2 in. (c) 2 x 3 in. (d) 2 x 4 in.

1 x 2 in.

11. In noncombustible walls or ceilings, the front edge of a box, plaster ring, extension ring, or listed extender may be set back not more than ___________from the finished surface. (a) 3/8 in. (b) 1/8 in. (c) ½ in (d) ¼ in.

1/4 inch

12. Plaster, drywall, or plasterboard surfaces that are broken or incomplete around boxes employing a flush-type cover or faceplate must be repaired so there will be no gaps or open spaces larger than ____________ at the edge of the box. (a) ½ in. (b) ¼ in. (c) 1/8 in. (d) 1/16 in

1/8 in.

According to the NEC, the volume of a 3x2x2 in. device box is _____________. (a) 12 cu in. (b) 14 cu in. (c) 10 cu in. (d) none of these

10 cu in.

15.Enclosures not over ___________ in size, having threaded entries and that do not contain a device(s) or support a luminaire(s) or other equipment, is considered to be adequately supported where two or more conduits are threaded wrenchtight into the enclosure and each conduit secured within 3 ft. (a) 50 cu in. (b) 75 cu in. (c) 100 cu in. (d) 125 cu in.

100 CU in.

9.What is the total volume, in cubic inches, for box fill calculations for two internal cable clamps, six 12 THHN conductors, and one single-pole switch? (a) 2.00 cu in. (b) 4.50 cu in (c) 14.50 cu in. (d) 20.25 cu in.

14.50 CU in.

8. Each yoke or strap containing one or more devices or equipment counts as ____________ conductor(s), based on the largest conductor that terminates on that device. (a) 1 (b) 2 (c) 3 (d) none

2

7. Fox box fill calculations, a reduction of ___________ conductor(s) can be made for one hickey and two internal clamps. (a) 1 (b) 2 (c) 3 (d) zero

3

6. Equipment grounding conductor(s), and not more than ____________ fixture wires (smaller than 14 AWG) can be omitted from the calculation where they enter the box from a domed luminaire or similar canopy and terminate within that box. (a) 2 (b) 3 (c) 4 (d) none of these

4

17. A wall-mounted luminaire weighing not more than ___________ can be supported to a device box with no fewer than two No. 6 or larger screws. (a) 4 lbs (b) 6 lbs (c) 8 lbs (d) 10 lbs

6 lbs

10. When NM cable is used with nonmetallic boxes no larger than 2 ¼ x 4 in., securing the cable to the box is not required if the cable is fastened within _________ of the box. (a) 6 in. (b) 8 in. (c) 10 in. (d) 12 in.

8 in.

18. When sizing a pull box in a straight run which contains conductors of a 4 AWG or larger, the length of the box must not be less than _______ for systems not over 600V. (a) 8 times the diameter of the largest raceway (b) 6 times the diameter of the largest raceway (c) 48 times the outside diameter of the largest shielded conductor (d) 36 times the largest conductor

8 times the diameter of the largest raceway

14. Outlet boxes can be secured to suspended-ceiling framing by mechanical means such as _____________, or other means identified for the suspended-ceiling framing member(s). (a) bolts (b) screws (c) rivets (d) all of these

all of these - bolts,screws and rivets

1. Nonmetallic boxes are permitted for use with _____________. (a) flexible nonmetallic conduit (b) liquidtight nonmetallic conduit (c) nonmetallic cables and raceways (d) all of these

nonmetallic cables and raceways

19. Listed boxes designed for underground installation can be directly buried when covered by __________ if their location is identified and accessible. (a) concrete (b) gravel (c) noncohesive granulated soil (d) b or c

Gravel or noncohesive granulated soil

16. In completed installation, each outlet box must have a ________. (a) cover (b) faceplate (c) canopy (d) any of these

any of these - cover,faceplateor canopy

2. Short-radius conduit bodies such as capped elbows, and service-entrance elbows that enclose conductors 6 AWG and smaller are intended to enable the installation of the raceway and the contained conductors and must not contain ___________. (a) splices (b) taps (c) devices (d) any of these

any of these- splices, taps, devices

20.Handhole enclosure covers must have an identifying ___________ that prominently identifies the function of the enclosure, such as "electric." (a) mark (b) logo (c) a or b (d) manual

mark or logo

4. When counting the number of conductors in a box, a conductor running through the box with no loop in it is counted as __________ conductor(s). (a) one (b) two (c) zero (d) none of these

one

. When counting the number of conductors in a box, a conductor running through the box with an unbroken loop not less than twice the minimum length required for free conductors in 300.14 is counted as ____________ conductor(s). (a) one (b) two (c) zero (d) none of these

two