NV C-17C Drywall Practice Questions - Nevada C-17C Drywall Contractor Examination Exam

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What thickness of Type X gypsum board is the common single-layer membrane in 1-hour wood-stud partitions listed in GA-600 and IBC tables?

5/8 inch Type X each side of the studs 1/4 inch flexible Type X 3/8 inch regular, doubled 2 inches of gypsum plaster on metal lath

Correct Answer:

5/8 inch Type X each side of the studs

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