Texas Journeyman Electrician Practice Exam

Question 1

Under NEC Article 210, a 20A branch circuit may serve how many outlet receptacles (each at 1.5A load) before exceeding 80% of circuit capacity for continuous loads?

Accepted Answer

10 outlets

Question 2

NEC 110.26 requires a minimum working space depth of how many inches in front of electrical equipment rated 0–150V to ground?

Accepted Answer

36 inches (3 feet)

Question 3

According to NEC Article 100, which of the following best defines "ampacity"?

Accepted Answer

The maximum current a conductor can carry continuously without exceeding its temperature rating

Question 4

According to NEC 240.4, conductors must be protected against overcurrent in accordance with their:

Accepted Answer

Their ampacity as specified in NEC 310.15

Question 5

NEC 110.14 requires that conductor terminations be made at devices listed for the temperature rating of the conductor. If a 75°C-rated conductor terminates on a 60°C-rated terminal, the conductor ampacity must be based on:

Accepted Answer

The 60°C column — the lowest rating of any connected termination

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