6.
What is the closest distance, in inches, that an aluminum conductor used for grounding can be
placed to the earth?
A.
14
B.
18
C.
20
D.
24
7.
What size equipment ground must be used with a 60-ampere circuit using a copper conductor (see
Table 2-2, page 2-5)?
A.
No. 4
B.
No. 6
C.
No. 8
D.
No. 10
8.
What size copper equipment ground conductor must be used when you are installing a 20-ampere
circuit in conduit (see Table 2-2, page 2-5)?
A.
No. 12
B.
No. 10
C.
No. 8
D.
No. 6
9.
The internal clamp screw should be used to hold the ground conductor to a metal box.
A.
True
B.
False
10. Ground conductors can be preinstalled in cable.
A.
True
B.
False
EN5144
2-12
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