Journeyman Electrician Practice Test 1

10 free Journeyman Electrician practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

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Question 1 of 10

Grounding and Bonding

A service disconnect is supplied by three parallel sets of 600-kcmil copper ungrounded conductors per phase. What is the minimum size copper main bonding jumper?