A utility trench is 180 ft long, 3 ft wide, and 7 ft deep with vertical sides inside a trench shield. What excavation volume is required?
Correct Answer
D) 140 cy
Volume is 180 x 3 x 7 = 3,780 cf. Dividing by 27 gives 140 cy. Other choices use the wrong depth, add an unsupported allowance, or forget to convert cubic feet to cubic yards.
Why This Is the Correct Answer
Volume is 180 x 3 x 7 = 3,780 cf. Dividing by 27 gives 140 cy. Other choices use the wrong depth, add an unsupported allowance, or forget to convert cubic feet to cubic yards.
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