A luminaire that weighs more than ____ pounds shall be supported independently of the outlet box, unless the outlet box is listed and marked on the interior of the box to indicate the maximum weight the box shall be permitted to support.
A. 20
B. 30
C. 40
D. 50
Answer: D
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Refer to Figure. Determine c-c length of K
Fill in the blank(s) with the appropriate word(s).
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