In the casework package file, a crew needs 12 respirator cartridges per day for 6 workdays. How many cartridges are needed?
Correct Answer
C) 72 cartridges.
Twelve cartridges per day for six days requires 12 x 6 = 72 cartridges.
Why This Is the Correct Answer
Twelve cartridges per day for six days requires 12 x 6 = 72 cartridges.
Why the Other Options Are Wrong
Option A: 64 cartridges.
64 cartridges. is below the supported result for respiratory supply calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 68 cartridges total.
68 cartridges total. is below the supported result for respiratory supply calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 84 cartridges total.
84 cartridges total. is above the supported result for respiratory supply calculation; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Planning Respiratory-Protection takeoff: count the condition before counting the package.
Reference Hint
Study anchor (closed-book): memorize Respiratory supply calculation from Cal/OSHA Title 8 Construction Safety Orders; CSLB B General Building. / Cal/OSHA Title 8 respiratory protection program concepts; know the rule or calculation trigger without relying on exam-room lookup.
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