Practice test

Electrician Practice Exam 14

Advanced electrician practice test on nonlinear neutral loading, motor feeder ampacity, emergency systems, and bonding. 25 timed NEC questions explained.

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

Question 1

1

A 3-phase, 4-wire feeder serves nonlinear (computer) loads. Per NEC 220.61(C) and 310.15(E), the neutral is:

Question 2

2

A 200 A feeder to a remote building runs an EGC. Per NEC Table 250.122, the copper EGC must be:

Question 3

3

A continuous load is served by a 30 A circuit. Per NEC 210.20(A), the maximum continuous load is:

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