At the stormwater-lift-station yard, during the look-ahead planning meeting, a roofing crew must complete 13800 SF of membrane tear-off area. If planned production is 3420 SF per day, how many whole work days should be scheduled?
Correct Answer
A) 5 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: 3 work days
3 work days is below the supported result for membrane tear-off area productivity; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 4 work days
4 work days is below the supported result for membrane tear-off area productivity; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 7 work days
7 work days is above the supported result for membrane tear-off area 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 Roofing methods; crew production planning; verify the construction method, material quantity, equipment use, unit conversion, or field-control calculation.
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