Practice test

Electrician Practice Exam 9

Intermediate electrician practice exam 9 on EGC sizing, service load calculations, and advanced NEC code rules. Detailed explanations after every question.

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

Question 1

1

An isolated (insulated) equipment grounding conductor for sensitive electronic equipment is permitted by NEC 250.146(D) to:

Question 2

2

A 600 A service uses two sets of parallel 350 kcmil copper (700 kcmil equivalent) per phase. The grounding electrode conductor from Table 250.66 is:

Question 3

3

A separate structure supplied by a feeder establishes its grounding by:

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