NHIE-Internachi Test Questions and
Answers
The standpipe and trap for an automatic clothes washer should be at least ____ inches in
diameter. - Answer✔✔-2 inches
Standpipes for clothes washers should extend at least ____ inches and no more than ____
inches above the trap weir. - Answer✔✔-18 inches and 42 inches
The vertical distance from a fixture outlet to the trap weir should not be more than _____
inches. - Answer✔✔-24 inches
The nailing of particleboard panels used as wall sheathing should be no closer than _______
from any edge of the panel. - Answer✔✔-3/8 inches
The outlet of a laundry tray should be no farther than _____ inches horizontally from the
standpipe trap. - Answer✔✔-30 inches
In a clothes dryer vent pipe, for each 45-degree bend, the maximum length of the duct should
be reduced by ____ feet - Answer✔✔-2 1/2 feet
A dishwasher, food grinder and kitchen sink can all discharge into the same ____-inch waste
drain pipe. - Answer✔✔-1 ½ inch
__________ flashing should be installed on the lowest face of a chimney. - Answer✔✔-Apron
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