Finish TradesCâu 473 / 700
In a suspended (grid) acoustical ceiling, the hanger wires that support the main runners are generally spaced at a MAXIMUM of what along each runner?
a.8 feet on center
b.6 feet on center
c.4 feet on center
d.10 feet on center
Giải thích
Suspended ceiling main runners are typically supported by hanger wires at a maximum of 4 feet on center to limit sag and provide seismic stability. Spacings of 6, 8, or 10 feet leave the grid inadequately supported and prone to sagging or failure.
Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
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