An toànCâu 1265 / 1605
For a simple sloping system in Type C soil (and no engineering), the maximum allowable slope is approximately:
a.1/4 horizontal to 1 vertical
b.Vertical (90 degrees)
c.2 vertical to 1 horizontal
d.1.5 horizontal to 1 vertical (about 34 degrees)
Giải thích
Type C soil requires the flattest slope: 1.5H:1V (about 34 degrees). Type B is 1H:1V (45 degrees) and Type A is 3/4H:1V (about 53 degrees) under the simple slope option.
Trích dẫn luật: 29 CFR 1926.652 Appendix BLuyện miễn phí toàn bộ 1605 câu hỏi — không cần đăng ký.
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Người kiểm duyệt Abraham Chen — Licensed California General Contractor (CSLB License #1101856 — kiểm tra)