Approximately how long is the PVC pipeline mentioned in the bedding sand calculation?

• A. 1500 ft
• B. 500 ft
• C. 1000 ft
• D. 2000 ft

Answer: (C)

In bedding sand calculations, you estimate the amount of sand needed by multiplying the sand quantity per unit length by the total length of the trench the pipe lies in. The length is the dimension that scales the total volume of bedding sand.

In this problem, the given setup uses a trench length of about one thousand feet to compute the sand volume. So the approximate length referenced for the calculation is 1,000 feet. If you changed that length, the required sand would scale accordingly—shorter length means less sand, longer length means more sand. The other options correspond to different potential trench lengths, but the scenario in the problem uses 1,000 feet, making that the correct approximation.