Practice test

Electrician Practice Exam 19

Master electrician practice test on optional-method load calcs, combined motor feeders, PV interconnection, and MV working space. 25 timed NEC questions.

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

Question 1

1

Optional method dwelling (220.82B): other loads total 38 kVA. First 10 kVA at 100%, remainder at 40%. The other-loads demand is:

Question 2

2

Adding 9 kVA HVAC to the 21.2 kVA other-loads demand gives 30.2 kVA. At 240 V this is about what service amperage and minimum standard size?

Question 3

3

A 2,500 A service with 7 sets of 600 kcmil/phase (4,200 kcmil). Per NEC 250.28(D)(2), the main bonding jumper at 12.5% of phase area must be at least:

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