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

Which geometric limits apply to a gypsum-board diaphragm ceiling under IBC 2018 2508.6?

Board must run parallel to the joists so edges land on every joist Maximum aspect ratio 1-1/2:1 between shear-resisting elements; rotation or cantilever is not permitted; board runs perpendicular to framing; end joints in adjacent courses do not share a joist Any aspect ratio is allowed if Type X is used Cantilevers up to 4 feet are permitted at the perimeter

Correct Answer:

Maximum aspect ratio 1-1/2:1 between shear-resisting elements; rotation or cantilever is not permitted; board runs perpendicular to framing; end joints in adjacent courses do not share a joist

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