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
& 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
