Examen de práctica — Texas Master Electrician

Question 1

NEC Article 410 governs luminaires in clothes closets. A surface-mounted incandescent luminaire must maintain what minimum clearance from the nearest point of a storage area?

Accepted Answer

12 inches

Question 2

NEC Article 500 classifies hazardous locations. A location where flammable gases are present only under abnormal conditions is classified as:

Accepted Answer

Class I, Division 2

Question 3

Per NEC Article 430, the maximum inverse time circuit breaker rating for motor branch circuit protection on a Design B motor is:

Accepted Answer

250% of FLC

Question 4

NEC Article 230 requires service entrance conductors to be protected from physical damage. What is the minimum burial depth for a 120/240V residential service lateral using rigid metal conduit?

Accepted Answer

12 inches

Question 5

According to NEC Article 110, what is the minimum working space depth required in front of electrical equipment rated 601V to 2500V where there are exposed live parts on one side and grounded parts on the other?

Accepted Answer

5 feet

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