NHIE Technical Terms: Plumbing System Questions with Detailed Verified Answers

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NHIE Technical Terms: Plumbing
System Questions with Detailed
Verified Answers


Question: 1/2 Bathroom


Ans: A bathroom with a sink and a toilet (powder room)


Question: 3/4 Bathroom


Ans: a bathroom with a sink, toilet, and a shower, but no bathtub


Question: Aerator


Ans: A device that introduces air into the water stream to reduce splash


Question: Adapter


Ans: A fitting that allows the connection of other pipe types or sizes


Question: Air Admittance Valve (AAV)

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Ans: an air pressure operated one-way valve used in place of an
atmospheric plumbing vent; this device is different from a check (cheater)
vent which contains a spring loaded gasket and is not approved for use in
site-built houses in most jurisdictions.


Question: Air Gap


Ans: The vertical distance between discharge opening of a water supply
fixture and the flood rim


Question: Plumbing appliance


Ans: an appliance connected to the plumbing system


Question: Backflow


Ans: The flow of contaminate from an unintended source into the water
supply


Question: Backflow Preventer


Ans: A device used to stop backflow


Question: Backpressure


Ans: An uncommon condition that can occur when the pressure at a point
outside the water supply system is greater than the water supply system


Question: Backsiphonage