National Electrical Code Exam questions & answers

National Electrical Code Exam questions
& answers

A 10 AWG stranded copper conductor has a cross-sectional area of _____________.

a. 0.007 sq in.

b. 0.011 sq in.

c. 0.012 sq in.

d. 0.106 sq in - correct answer ✔✔



A motor terminal housing enclosing rigidly mounted motor terminals shall have a minimum of
_________ between line terminals for a 230v motor.

a. 1/4"

b. 3/8"

c. 1/2"

d. 5/8" - correct answer ✔✔



Surface-mounted luminaires with a ballast shall have a minimum clearance of __________ from
combustible low-density cellulose fiberboard, unless the luminaire is marked for surface
mounting on combustible low-density cellulose fiberboard.

a. 1/2 in.

b. 1 in.

c. 1-1/2 in.

d. 2 in. - correct answer ✔✔



Dry-type transformers installed indoors rated over _______ shall be installed in a vault.

a. 1000v