A fixture branch uses 18 feet of pipe at 1/4 inch fall per foot. What total fall is required?
Correct Answer
D) 4.5 inches.
At 1/4 inch per foot, 18 feet needs 4.5 inches of fall.
Why This Is the Correct Answer
At 1/4 inch per foot, 18 feet needs 4.5 inches of fall.
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