安全第 1353 / 1605 题
Job-made and manufactured ladders must be capable of supporting their intended loads. A ladder should be selected so its duty rating:
a.Meets or exceeds the total weight of the user plus tools and materials
b.Is irrelevant to safety
c.Only matters for metal ladders
d.Is always the lightest available
解析
Ladder duty ratings (e.g., Type IA 300 lb, Type I 250 lb) must exceed the combined weight of the worker plus tools and materials. Overloading a ladder can cause structural failure.
法律依据: 29 CFR 1926.1053(a)免费刷完整 1605 道题库 — 无需注册。
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