A sanitary line must fall at 1.2 percent over a 350 ft horizontal run. What invert drop should be shown between the two structures?
Correct Answer
A) 4.2 ft
A 1.2 percent slope is 0.012 ft/ft. Drop is 350 x 0.012 = 4.2 ft. Other choices use 1.0 percent, round incorrectly, or convert percent too low.
Why This Is the Correct Answer
A 1.2 percent slope is 0.012 ft/ft. Drop is 350 x 0.012 = 4.2 ft. Other choices use 1.0 percent, round incorrectly, or convert percent too low.
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