Quiz on the Code:

Wiring Methods & Equipment

1.  Low-voltage fixed electric space heating equipment shall be permitted to be supplied from a branch circuit not over _____ A.
(a) 20
(b) 30
(c) 40
(d) 50

2.  Box supports for attachment receptacles are required _____.
(a) to be identified to support the weight
(b) to be designed for a specific fitting
(c) not be allowed to support from box ears
(d) to be a listed box

3.  Conductors that are installed in parallel, only one conductor per phase and neutral shall be placed in _____ wireways to avoid inductive heating.
(a) metal
(b) nonmetallic
(c) metal and non-metal
(d) None of the above.

4.  Stainless steel IMC conduit shall use _____ fittings.
(a) aluminum
(b) stainless steel
(c) brass
(d) All of the above.

5.  Receptacles that also have USB charging ports will have _____ circuit identified.
(a) Class 1
(b) Class 2  
(c) Class 3
(d) Class 4

6.  Flexible cords and cables may be used in walls, floors or ceilings if _____ within an enclosures for use with “other spaces used for environmental air”.
(a) contained  
(b) insulated
(c) approved
(d) None of above.



Answers: 
1. (b) Art 424.104
2. (a) Art 314.27
3. (c) Art 376.20
4. (b) Art: 342.14
5. (b) Art 406.3(F) 
6. (a) Art 400.12(5) Exception