Common Hazards第 39 / 100 题
Which of the following is an engineering control for a construction hazard?
a.A safety poster
b.A machine guard that physically blocks contact with moving parts
c.A written policy
d.A warning email
解析
An engineering control physically removes or isolates a hazard, such as a machine guard, ventilation system, or trench shield. Engineering controls rank above administrative controls and PPE in the hierarchy. They protect workers without depending on individual behavior.
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