A jobsite has 28 workers, and high-visibility vests are available for 22. How many more are needed?
Correct Answer
D) 6 vests.
Twenty-eight workers minus twenty-two vests leaves six additional vests needed.
Why This Is the Correct Answer
Twenty-eight workers minus twenty-two vests leaves six additional vests needed.
Why the Other Options Are Wrong
Option A: 4 vests.
4 vests. is below the supported result for traffic and site control; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 5 vests.
5 vests. is below the supported result for traffic and site control; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 22 vests.
22 vests. is above the supported result for traffic and site control; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Checking Ppe takeoff: count the condition before counting the package.
Reference Hint
Study anchor (closed-book): memorize Traffic and site control from Cal/OSHA Title 8 Construction Safety Orders; CSLB Law and Business. / Title 8 personal protective and site traffic controls; know the rule or calculation trigger without relying on exam-room lookup.
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