10 free NHIE practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
NHIE Practice Test 14Tutor mode
Question 1 of 10
Property and Building Inspection/Site Review
A 2-in horizontal drain runs 24 ft from a laundry standpipe to the main stack. The minimum slope for this pipe size is 1/4 in per foot. The inspector measures a total fall of 4 in along the run. What minimum total fall is required, and what does the measurement show?