安全第 1263 / 1605 题
Before entering a trench more than 4 feet deep where a hazardous atmosphere could exist (e.g., near landfill or sewer), the employer must:
a.Simply open the trench for a few minutes
b.Test the atmosphere for oxygen deficiency and hazardous gases and provide controls as needed
c.Rely on workers' sense of smell
d.Ignore the atmosphere below 10 feet
解析
1926.651(g) requires atmospheric testing in excavations over 4 feet deep where oxygen deficiency or hazardous/flammable atmospheres could reasonably exist, with adequate ventilation or respiratory protection provided.
法律依据: 29 CFR 1926.651(g)免费刷完整 1605 道题库 — 无需注册。
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