安全第 1266 / 1605 题
Which condition would require a competent person to take additional precautions such as installing support to prevent an excavation cave-in from adjacent structures?
a.Rain that has stopped for a week
b.A trench in open desert with no structures
c.A trench with a ladder every 25 feet
d.An excavation that could undermine the foundation of an adjacent building
解析
1926.651(i) requires support systems or other protection when excavation could endanger the stability of adjoining buildings, walls, sidewalks, or other structures.
法律依据: 29 CFR 1926.651(i)免费刷完整 1605 道题库 — 无需注册。
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