Safety第 82 / 100 题
Under Cal/OSHA, a trench generally must be protected by sloping, shoring, or shielding once it reaches what depth?
a.5 feet or deeper (and shallower if a competent person sees a hazard)
b.20 feet
c.2 inches
d.50 feet
解析
Cal/OSHA requires cave-in protection such as sloping, benching, shoring, or a trench box for excavations 5 feet deep or greater, and even shallower trenches if a competent person identifies a hazard. Unprotected trenches can collapse and bury workers in seconds. A competent person must inspect trenches daily.
法律依据: Cal/OSHA Title 8免费刷完整 100 道题库 — 无需注册。
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