Which statement is true regarding steel as used for structural support in construction?
A. steel will not begin to fail until it reaches temperatures of over 2000 degrees F.
B. steel will always buckle in the middle before it fails
C. steel may begin to fail at 1000 degrees F.
D. steel trusses will last longer than wood trusses under fire conditions.
Ans: C. steel may begin to fail at 1000 degrees F.
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