An toànCâu 1340 / 1605
A warning line system, used in some low-slope roofing work, functions to:
a.Mark an area where work may proceed without conventional fall protection, keeping workers back from the edge
b.Decorate the roof
c.Provide electricity
d.Support the workers' weight
Giải thích
1926.502(f) warning lines demarcate an area on low-slope roofs; combined with a safety monitor or other measures, they keep workers a safe distance from unprotected edges under specific conditions.
Trích dẫn luật: 29 CFR 1926.502(f)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)