17. It is the ___who has the job of approving the electrical materials used for

Question

17. It is the ___who has the job of approving the electrical materials used for a residential electrical
installation.
a. electrician
b. foreman
c. architect
d. authority havingj urisdiction

18. The ____is an organization that develops electrical equipment standards that all member groups
follow when designing and producing electrical equipment.
a. Underwriters Laboratories
b. Canadian Standards Association
c. National Electrical Manufacturers Association
d. National Electrical Code

19. The National Electrical Code requires electrical cable to be supported no more than _inches from
single-gang nonmetallic device boxes.
a. 6
b. 8
c. 10
d. 12

20. When nonmetallic device boxes that are 2-gang or more are used, the installed cable must be supported no
more than___inches from the box.
a. 8
b. 10
c. 12
d. 18

2 1 . When using aluminum conductors, ___size conductor must be used to carry the same amount of
current as a copper conductor.
a. a smaller
b. the same
c. a larger
d. the same or larger

22. Which of the following conductors is the largest?
a. 8 AWG
b. 10 AWG
c. 12 AWG
d. 14 AWG

23. The _circuit conductor is used as the grounded conductor and returns current from the load back
to the source.
a. black
b. white
c. red
d. green

24. Type __ __ cable is used for underground installations of branch and feeder circuits.
a. NM
b. NM-B
c. SE
d. None of the above

Explanation / Answer

17. It is the ___who has the job of approving the electrical materials used for a residential electrical
installation.

b. foreman

18. The ____is an organization that develops electrical equipment standards that all member groups
follow when designing and producing electrical equipment.

c. National Electrical Manufacturers Association

9. The National Electrical Code requires electrical cable to be supported no more than _inches from
single-gang nonmetallic device boxes.

b. 8

2 1 . When using aluminum conductors, ___size conductor must be used to carry the same amount of
current as a copper conductor.

c. a larger

hen nonmetallic device boxes that are 2-gang or more are used, the installed cable must be supported no
more than___inches from the box.

d. 18

22. Which of the following conductors is the largest?
a. 8 AWG

23. The _circuit conductor is used as the grounded conductor and returns current from the load back
to the source.
a. black

24. Type __ __ cable is used for underground installations of branch and feeder circuits.

b. NM-B

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