An toànCâu 1260 / 1605
For an excavation deeper than 20 feet, protective systems (such as shoring or shielding) must be:
a.Based only on the manufacturer's sticker
b.Optional at that depth
c.Chosen by any foreman on site
d.Designed by a registered professional engineer (RPE)
Giải thích
For excavations deeper than 20 feet, the protective system must be designed by a registered professional engineer (or based on tabulated data approved by an RPE). Below 20 feet other options like the OSHA appendices may be used.
Trích dẫn luật: 29 CFR 1926.652(b)Luyện miễn phí toàn bộ 1605 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- The top edge of a standard guardrail top rail must be approximately what height above the walking/working surface?
- At what depth does an excavation generally require a protective system such as sloping, shoring, or shielding to protect workers from cave-ins?
- Who must inspect an excavation for hazardous conditions before employees enter and as conditions change?
- A trench is 5 feet deep. What means of egress must be provided for workers?
- Excavated spoil, materials, and equipment must be kept at least how far back from the edge of an excavation?
- Before entering a trench more than 4 feet deep where a hazardous atmosphere could exist (e.g., near landfill or sewer), the employer must:
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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)