General Contractor Practice Exam

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How many cubic yards are there in an excavation that is 60 feet wide, 100 feet long, and 10 feet deep?

1,500 cubic yards
2,222.22 cubic yards
3,000 cubic yards
4,000 cubic yards

The correct answer is: 2,222.22 cubic yards

To determine the volume of an excavation in cubic yards, start by calculating the volume in cubic feet first. The formula for volume is length × width × depth. In this case, the excavation measures 60 feet wide, 100 feet long, and 10 feet deep. Calculate the volume in cubic feet as follows: Volume = Length × Width × Depth Volume = 100 feet × 60 feet × 10 feet Volume = 60,000 cubic feet. Next, convert the volume from cubic feet to cubic yards. There are 27 cubic feet in a cubic yard (since a yard is 3 feet, and you cube it: 3 × 3 × 3 = 27). To convert cubic feet to cubic yards, divide the total cubic feet by 27: 60,000 cubic feet ÷ 27 = approximately 2,222.22 cubic yards. This calculation shows that there are 2,222.22 cubic yards in the excavation, confirming that this is the correct answer. Understanding volume conversion is essential in construction as it allows contractors to ensure they have accurate material quantities and proper site management for efficient project execution.