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

By color of the face paper alone; all gray board is Type X By the manufacturer's designation and Type X marking on the board, as required by IBC 2506.1 and ASTM C1396 By measuring the long edge; any 5/8-inch board is automatically Type X By whether the edges are tapered