安全第 1348 / 1605 题
In California, the trench cave-in protection requirement mirrors federal OSHA, applying protective systems at depths of:
a.2 feet or more
b.20 feet or more only
c.10 feet or more only
d.5 feet or more (or shallower if a competent person identifies a cave-in hazard)
解析
T8 §1541.1, like 1926.652, requires cave-in protection at 5 feet or more (and shallower when a competent person sees a hazard), unless the excavation is entirely in stable rock.
法律依据: T8 CCR §1541.1免费刷完整 1605 道题库 — 无需注册。
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