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Tennessee Electrician Practice 8

Practice 8 for Electrician Exam learners in Tennessee: 25 questions, explained answers, and a review routine.

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Question 1

1

An equipment grounding conductor for a 400 A feeder (copper) is sized from Table 250.122 at a minimum of:

Question 2

2

Phase conductors are upsized for voltage drop by a ratio of about 1.18 on a feeder that originally required an 8 AWG EGC. The EGC must be increased to approximately:

Question 3

3

Where conductors of several circuits run in the same raceway, a single equipment grounding conductor:

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