Multiple Choice
If a stem is longer than________in., lateral braces must be placed within 12 in. (300 mm) of the luminaire, or an explosionproof flexible coupling must be used within 12 in. (300 mm) of the junction box.
A) 6
B) 10
C) 12
D) 14
Correct Answer:

Verified
Correct Answer:
Verified
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