An engineered duct-support detail specifies supports at both ends of a straight 40-foot run and intervals no greater than 10 feet. With no other support conditions, what is the minimum number of supports?

Texas ACR A exam practice question · Service

An engineered duct-support detail specifies supports at both ends of a straight 40-foot run and intervals no greater than 10 feet. With no other support conditions, what is the minimum number of supports?

Where to look it up

Explicit exercise assumptions; not a universal code requirement.

Why C is correct

There are four 10-foot intervals, requiring supports at 0, 10, 20, 30 and 40 feet: five total. The spacing is supplied by the detail, not asserted as a universal UMC requirement.

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An engineered duct-support detail specifies supports at both ends of a straight 40-foot run and intervals no greater than 10 feet. With no other support conditions, what is the minimum number of supports?

An engineered duct-support detail specifies supports at both ends of a straight 40-foot run and intervals no greater than 10 feet. With no other support conditions, what is the minimum number of supports?

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