Fall Protection第 61 / 100 题
When is a floor hole or opening a fall hazard that must be protected?
a.Only if larger than a door
b.Never, holes are always safe
c.Only outdoors
d.When a worker could fall through or step into it, requiring covers or guardrails
解析
Holes and openings in floors or roofs through which a worker could fall must be protected with covers, guardrails, or personal fall arrest. Covers must be secured and marked, and be able to support the intended loads. Unprotected openings are a common and preventable fall hazard.
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