The Stuart job has this respirable-dust condition: worker uses handheld grinder on masonry. Which safety control should be used?
Correct Answer
D) silica exposure control
Silica-producing tasks require dust controls and housekeeping methods that reduce exposure.
Why This Is the Correct Answer
Silica-producing tasks require dust controls and housekeeping methods that reduce exposure.
Why the Other Options Are Wrong
Option A: a surgical mask
a surgical mask may relate to another site control, but it does not remove or guard the the hazard control exposure being tested.
Option B: rotate to share exposure
rotate to share exposure may relate to another site control, but it does not remove or guard the the hazard control exposure being tested.
Option C: a box fan at the work
a box fan at the work may relate to another site control, but it does not remove or guard the the hazard control exposure being tested.
Memory Technique
Hazard lock for Safety Coordinator: silica-producing is the harm, tasks is the guard.
Reference Hint
Open-book path: tab OSHA 29 CFR 1926 to Subpart Z, 1926.1153 Respirable crystalline silica; verify the OSHA safety threshold or jobsite control before answering.
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