Practice test

Electrician Practice Exam 11

Intermediate electrician practice exam with 25 questions on grounding, load calculations, and NEC code. Timed 40-minute simulator with full answer explanations.

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Question 1

1

A 200 A service uses a 4/0 AWG copper grounded service conductor. Per NEC Table 250.102(C)(1), what minimum size copper supply-side bonding jumper (main bonding jumper) is required?

Question 2

2

A dwelling has a 9.6 kW nameplate electric range. Using NEC Table 220.55 Column C, what demand load is used for the service calculation?

Question 3

3

What maximum voltage drop does the NEC recommend (informational, not mandatory) for a branch circuit alone?

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