For the material-order review at the shipping-office break area, the dry-pack mortar requires 31.2 CY of threshold beds. If each bag yields 0.42 CY, how many bags are needed?
Correct Answer
C) 75 bags
Bag count equals required volume divided by bag yield, rounded up.
Why This Is the Correct Answer
Bag count equals required volume divided by bag yield, rounded up.
Why the Other Options Are Wrong
Option A: 74 bags
74 bags is below the supported result for dry-pack mortar; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 13 bags
13 bags is below the supported result for dry-pack mortar; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 77 bags
77 bags is above the supported result for dry-pack mortar; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Dry-Pack Mortar cart for Foreman Checks: bag first, count second, whole units last.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Masonry and tile prep; dry-pack yield; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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