High-noise chipping exposes 17 workers, and hearing protection has been issued to 12. How many additional workers need protection?
Correct Answer
D) 5 workers.
Seventeen exposed workers minus twelve already issued protection leaves five workers.
Why This Is the Correct Answer
Seventeen exposed workers minus twelve already issued protection leaves five workers.
Why the Other Options Are Wrong
Option A: 3 workers.
3 workers. is below the supported result for ppe; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 4 workers.
4 workers. is below the supported result for ppe; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 12 workers.
12 workers. is above the supported result for ppe; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to exposed, adjust for controlling, then let Checking Hearing set the finish line.
Reference Hint
Study anchor (closed-book): memorize PPE from Cal/OSHA Title 8 Construction Safety Orders; CSLB Law and Business. / Title 8 occupational noise and hearing protection requirements; know the rule or calculation trigger without relying on exam-room lookup.
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