A beam requires a mil thickness of 65 mils for TFIFRM. What is the lowest allowable average mil thickness for the beam?

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Multiple Choice

A beam requires a mil thickness of 65 mils for TFIFRM. What is the lowest allowable average mil thickness for the beam?

In fireproofing specs, the stated thickness is a minimum requirement. The beam’s average thickness must be at least that value. Therefore, the smallest thickness that still meets the specification is equal to the required 65 mils. Any thinner value would not satisfy the minimum, while thicker values (68 or 70 mils) also meet the spec but are not the lowest allowable.

In fireproofing specs, the stated thickness is a minimum requirement. The beam’s average thickness must be at least that value. Therefore, the smallest thickness that still meets the specification is equal to the required 65 mils. Any thinner value would not satisfy the minimum, while thicker values (68 or 70 mils) also meet the spec but are not the lowest allowable.

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