NEC Code Sections 320 and 330

1. The use of Type AC cable is permitted in _______________ installations. (a) wet (b) cable tray (c) exposed (d) b and c

(d) Cable Tray and exposed

8. Smooth-sheath Type MC cable with an external diameter of not greater than 1 in. must have a bending radius of not more than _________ times the cable external diameter. (a) 5 (b) 10 (c) 12 (d) 13

12

9. Type MC cable containing four or fewer conductors, sized no larger than 10 AWG, must be secured within ___________ of every box, cabinet, fitting, or other cable termination. (a) 8 in. (b) 18 in. (c) 12 in. (d) 24 in.

12 inch

4. Armored cable used for the connection of recessed luminaries or equipment within an accessible ceiling does not need to be secured for lengths up to ________. (a) 2 ft (b) 3 ft (c) 4 ft (d) 6 ft

6 ft

3. When Type AC cable is run across the top of a floor joist in an attic without permanent ladders or stairs, substantial guard strips within _________ of the scuttle hole, or attic entrance, must protect the cable. (a) 7 ft (b) 6 ft (c) 5 ft (d) 3 ft

6ft

When Type AC cable is installed in thermal insulation, it must have conductors that are rated at 90 C. The ampacity of the cable in this application is ___________. (a) based on 90 C column (b) as labeled by the manufacturer (c) based on the 60 C column (d) none of these

based on the 60 c column

10. Fitting used for connecting Type MC cable to boxes, cabinets, or other equipment must ______________. (a) be nonmetallic (b) be listed and identified for such use (c) be listed and identified as weatherproof (d) include anti-shorting bushing (red heads)

be listed and identified for such use

6. Type MC cable must not be used where exposed to the following destructive corrosive condition(s), unless the metallic sheath is suitable for the condition(s) or is protected by material suitable for the condition(s): (a) direct burial in the earth (b) in concrete (c) in cinder fill (d) all of these

direct burial in the earth, in concreate and in cinder fill

2. Armored cable is limited or not permitted _______________. (a) in damp or wet locations (b) where subject to physical damage (c) where exposed to corrosive fumes or vapors (d) all of these

in damp or wet locations, where subject to damage and where exposed to corrosive fumes or vapors

7. Type MC cable installed through, or parallel to, framing members must be protected against physical damage from penetration by screws or nails by 1 ¼ in. separated by a suitable metal plate. (a) true (b) false

true