During the subcontractor quantity check at the data-room equipment alcove, a masonry crew must complete 10675 SF of CMU backup wall. If planned production is 780 SF per day, how many whole work days should be scheduled?
Correct Answer
A) 14 work days
Crew days equal quantity divided by daily production, rounded up to whole days.
Why This Is the Correct Answer
Crew days equal quantity divided by daily production, rounded up to whole days.
Why the Other Options Are Wrong
Option B: 11 work days
11 work days is below the supported result for cmu backup wall productivity; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 16 work days
16 work days is above the supported result for cmu backup wall productivity; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Option D: 15 work days
15 work days is above the supported result for cmu backup wall productivity; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Measure to crew, adjust for divided, then let Superintendent Schedules set the finish line.
Reference Hint
Open-book path: tab Principles and Practices of Commercial Construction, 10th Edition to Masonry methods; crew production planning; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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