MS Residential HVAC Practice Questions - Mississippi Residential HVAC Contractor Examination Exam

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Cooling-season supply duct wrap in an unconditioned Mississippi attic should have its vapor retarder placed on which side of the insulation?

On the outside of the wrap, facing the attic air Against the metal, facing the supply air stream Omitted entirely if the duct carries only cooled air On both faces so the insulation is vapor-tight in both directions

Correct Answer:

On the outside of the wrap, facing the attic air

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