Practice test

Electrician Practice Exam 10

Intermediate electrician practice exam 10 covering separately derived systems, feeder load math, and NEC tap and panel rules. Scored with full explanations.

Free preview

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

Question 1

1

A 250 kcmil copper service requires a grounding electrode conductor (to a non-rod, non-Ufer electrode) of:

Question 2

2

A separately derived system (480-208/120 V transformer) has 4/0 copper secondary phase conductors. The system bonding jumper from Table 250.66 is:

Question 3

3

Exposed structural metal building frame likely to become energized must be:

Enable JavaScript for the interactive step-by-step quiz with instant scoring and explanations.