The utility spoils worksheet lists a trench 50 feet long, 2 feet wide, and 4.5 feet deep. How many cubic yards are excavated before swell?
Correct Answer
C) 16.67 cubic yards.
The trench volume is 50 x 2 x 4.5 = 450 cubic feet. Dividing by 27 gives 16.67 cubic yards.
Why This Is the Correct Answer
The trench volume is 50 x 2 x 4.5 = 450 cubic feet. Dividing by 27 gives 16.67 cubic yards.
Why the Other Options Are Wrong
Option A: 14.44 cubic yards.
14.44 cubic yards. is below the supported result for excavation takeoff; it likely omits allowance, conversion, coverage, or final round-up.
Option B: 15.56 cubic yards.
15.56 cubic yards. is below the supported result for excavation takeoff; it likely omits allowance, conversion, coverage, or final round-up.
Option D: 18.00 cubic yards.
18.00 cubic yards. is above the supported result for excavation takeoff; it likely double-counts allowance, uses the wrong unit, or rounds too early.
Memory Technique
Estimating Utility takeoff: count the condition before counting the package.
Reference Hint
Study anchor (closed-book): memorize Excavation takeoff from CSLB B General Building Study Guide; California Building Code, Title. / Title 24 California Building Code sitework quantity concepts; know the rule or calculation trigger without relying on exam-room lookup.
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