Question 1

What is the maximum distance allowed between supports for rigid metal conduit (RMC) in a straight run?

Accepted Answer

RMC must be supported within 3 feet of each outlet box, junction box, or conduit body, and at intervals not exceeding 10 feet.

Question 2

According to the NEC, what is the minimum burial depth for direct-burial cable (UF cable) under a residential driveway?

Accepted Answer

UF cable must be buried at least 24 inches deep under a residential driveway.

Question 3

What is the maximum number of bends (total degrees) allowed in a single conduit run between pull points?

Accepted Answer

The NEC limits conduit runs to a maximum of 360 degrees total bends between pull points.

Question 4

What is the minimum working clearance required in front of electrical equipment rated 0–150 volts to ground where there are exposed live parts on one side only?

Accepted Answer

A minimum working clearance of 3 feet is required in front of electrical equipment rated 0–150 volts to ground (Condition 1).

Question 5

Per the NEC, what color must the grounded (neutral) conductor be identified with for conductors larger than 6 AWG?

Accepted Answer

For conductors larger than 6 AWG, the grounded conductor must be identified with white or gray tape, paint, or other means at terminations.

NEC Code Essentials for Electrician Journeyman Exam

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