Multiple Choice
Fire- rated doors are rated as
A) 3 h, 120 min, 60 min, or 30 min.
B) 4 h, 3 h, 2 h, 1 h, or 30 min.
C) 4 h, 3 h, 2 h, or 1 h.
D) 3 h, 90 min, 60 min, 45 min, or 20 min.
E) none of the above.
Correct Answer:
Verified
Correct Answer:
Verified
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