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Electrician Practice Exam 5

Core-level electrician practice exam 5 mixing grounding and bonding, motor and feeder load calculations, and NEC code. Scored instantly with explanations.

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These questions are for study practice only and are not official exam questions.

Question 1

1

A 400 A service uses two sets of parallel 3/0 copper conductors per phase. The grounding electrode conductor based on the total equivalent copper area is sized from Table 250.66 at:

Question 2

2

Objectionable current on grounding conductors (NEC 250.6) is best remedied by:

Question 3

3

For a feeder to a detached building (separate structure), the equipment grounding conductor must:

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