NM CID GS-6 Practice Questions - New Mexico CID GS-6 Door Installation Examination Exam

What is the difference between a knockdown (KD) hollow-metal frame and a welded hollow-metal frame?

A KD frame is always fire-rated; a welded frame is never fire-rated A KD frame ships in pieces and is assembled in the field; a welded frame is factory-welded as one unit A KD frame can be used only in masonry; a welded frame can be used only in drywall There is no installation difference; the names refer only to paint finish

Correct Answer:

A KD frame ships in pieces and is assembled in the field; a welded frame is factory-welded as one unit

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