An toànCâu 1256 / 1605
A guardrail system used for fall protection must have a top rail capable of withstanding a downward/outward force of at least how much, applied within 2 inches of the top edge?
a.50 pounds
b.100 pounds
c.200 pounds
d.150 pounds
Giải thích
1926.502(b)(3) requires the top rail to withstand at least 200 pounds of force. The top edge height must be about 42 inches (±3 inches), with a midrail roughly halfway.
Trích dẫn luật: 29 CFR 1926.502(b)Luyện miễn phí toàn bộ 1605 câu hỏi — không cần đăng ký.
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Sen Lin, Người sáng lập PrepPass · Đối chiếu với California CSLB Contractor License Law & Business Exam · Quy trình kiểm tra
Người kiểm duyệt Abraham Chen — Licensed California General Contractor (CSLB License #1101856 — kiểm tra)