NV C-4E Drywall Practice Questions - Nevada C-4E Drywall Contractor Examination Exam

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In the ASTM C1396 definition, 5/8-inch Type X gypsum board must deliver at least what fire-resistance rating in the qualifying wood-stud assembly?

30 minutes 45 minutes 1 hour 3 hours with a single layer on one side

Correct Answer:

1 hour

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