What is the minimum allowable average TFIFRM thickness for a beam that requires 48 mils of thickness?

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Multiple Choice

What is the minimum allowable average TFIFRM thickness for a beam that requires 48 mils of thickness?

Explanation:
The main concept is that a minimum allowable thickness must meet the design specification for the fireproofing. If a beam requires 48 mils, the smallest thickness that passes is 48 mils, which is 100% of the specified thickness. This ensures the beam gets the intended protection; anything less would not meet the requirement, while being thicker is acceptable but not necessary to meet the minimum. So the minimum allowable average thickness is 48 mils, i.e., 100% of the specified thickness.

The main concept is that a minimum allowable thickness must meet the design specification for the fireproofing. If a beam requires 48 mils, the smallest thickness that passes is 48 mils, which is 100% of the specified thickness. This ensures the beam gets the intended protection; anything less would not meet the requirement, while being thicker is acceptable but not necessary to meet the minimum. So the minimum allowable average thickness is 48 mils, i.e., 100% of the specified thickness.

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