An toànCâu 1262 / 1605
Excavated spoil, materials, and equipment must be kept at least how far back from the edge of an excavation?
a.1 foot
b.6 inches
c.10 feet
d.2 feet (or use retaining devices)
Giải thích
1926.651(j)(2) requires spoils and equipment to be kept at least 2 feet from the excavation edge, or retained by devices, to prevent material from falling in on workers.
Trích dẫn luật: 29 CFR 1926.651(j)(2)Luyện miễn phí toàn bộ 1605 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Who must inspect an excavation for hazardous conditions before employees enter and as conditions change?
- For an excavation deeper than 20 feet, protective systems (such as shoring or shielding) must be:
- A trench is 5 feet deep. What means of egress must be provided for workers?
- 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:
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