The concrete pour measures 24 feet by 16 feet at 5 inches thick. About how many cubic yards are needed before waste?
Correct Answer
D) 5.93 cubic yards.
Five inches is 0.417 feet. The volume is 24 x 16 x 0.417 = 160.13 cubic feet, and 160.13 / 27 = 5.93 cubic yards.
Why This Is the Correct Answer
Five inches is 0.417 feet. The volume is 24 x 16 x 0.417 = 160.13 cubic feet, and 160.13 / 27 = 5.93 cubic yards.
Why the Other Options Are Wrong
Option A: 4.74 cubic yards.
4.74 cubic yards. is below the supported result for concrete quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 5.12 cubic yards total.
5.12 cubic yards total. is below the supported result for concrete quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Option C: 5.54 cubic yards total.
5.54 cubic yards total. is below the supported result for concrete quantity calculation; it likely omits allowance, conversion, coverage, or final round-up.
Memory Technique
Concrete Quantity cart for Estimating Equipment: inches first, feet second, whole the controlling choice last.
Reference Hint
Study anchor (closed-book): memorize Concrete quantity calculation from California Building Code, California Code of Regulations Title 24. / Title 24 California Building Code concrete quantity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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