An toànCâu 1266 / 1605
Which condition would require a competent person to take additional precautions such as installing support to prevent an excavation cave-in from adjacent structures?
a.Rain that has stopped for a week
b.A trench in open desert with no structures
c.A trench with a ladder every 25 feet
d.An excavation that could undermine the foundation of an adjacent building
Giải thích
1926.651(i) requires support systems or other protection when excavation could endanger the stability of adjoining buildings, walls, sidewalks, or other structures.
Trích dẫn luật: 29 CFR 1926.651(i)Luyện miễn phí toàn bộ 1605 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Before entering a trench more than 4 feet deep where a hazardous atmosphere could exist (e.g., near landfill or sewer), the employer must:
- In the OSHA soil classification system, which soil type is the most stable?
- For a simple sloping system in Type C soil (and no engineering), the maximum allowable slope is approximately:
- Each scaffold and scaffold component must be capable of supporting, without failure, its own weight and at least how many times the maximum intended load?
- At what height above a lower level does fall protection become required for employees on a supported scaffold?
- Who must inspect a scaffold before each work shift and after any occurrence that could affect its structural integrity?
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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)