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InterNACHI - Plumbing Questions and Correct Answers
Already Graded
T/F: This course only addresses code-related violations regarding plumbing
fixtures ✓✓ False
"Plumbing" comes from the Latin word "plumbum," which means
___________. ✓✓ Lead
T/F: Contamination can affect water's potability. ✓✓ True
T/F: The inspector is required to light or ignite pilot lights. ✓✓ False
T/F: The inspector must examine a home for polybutylene plumbing. ✓✓ False
Determining the location of the main water supply shut-off valve is _____ the
scope of a home inspection. ✓✓ Within
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According to the InterNACHI Standards of Practice, the inspector is required to
_______ all the toilets. ✓✓ Flush
If a home inspector observes a fuel storage tank, the inspector _____ describe
that in the report. ✓✓ Yes
Acrylonitrile butadiene styrene is sometimes abbreviated as: ✓✓ ABS
The unobstructed vertical distance through the free atmosphere between an
outlet and the rim best describes ___________. ✓✓ An air gap in the drainage
system
Air-admittance valves protect traps from _________. ✓✓ Siphonage
Where do gasses escape a sanitary drainage system? ✓✓ A vent stack
A lavatory is __________. ✓✓ a bathroom or washroom sink
An anchoring ring that is secured to the floor is a __________. ✓✓ Water
closet flange
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A toilet or commode is referred to in plumbing standards as a ________. ✓✓
Water closet
The flow of liquids in reverse of its intended path describes ________. ✓✓
Backflow
Hot water is ___________. ✓✓ Water at a temperature of 110° F or higher
Closet bolts are often made of ______ because they resist corrosion. ✓✓
Brass
The waste from an automatic clothes washer must discharge its water through
a(n) ________ into a standpipe or into a laundry tub. ✓✓ Air break or air gap
If a standpipe for an automatic clothes washer is used, the standpipe and its
trap should be at least ___ inches in diameter. ✓✓ 2
Plastic bathtubs are made with _________ in case of accidental exposure to a
plumber's torch. ✓✓ Fire-resistant chemicals
© Get it right 2025 Getaway - Stuvia US All rights reserved
InterNACHI - Plumbing Questions and Correct Answers
Already Graded
T/F: This course only addresses code-related violations regarding plumbing
fixtures ✓✓ False
"Plumbing" comes from the Latin word "plumbum," which means
___________. ✓✓ Lead
T/F: Contamination can affect water's potability. ✓✓ True
T/F: The inspector is required to light or ignite pilot lights. ✓✓ False
T/F: The inspector must examine a home for polybutylene plumbing. ✓✓ False
Determining the location of the main water supply shut-off valve is _____ the
scope of a home inspection. ✓✓ Within
© Get it right 2025 Getaway - Stuvia US All rights reserved
,Click here for more: Scholars nexus
According to the InterNACHI Standards of Practice, the inspector is required to
_______ all the toilets. ✓✓ Flush
If a home inspector observes a fuel storage tank, the inspector _____ describe
that in the report. ✓✓ Yes
Acrylonitrile butadiene styrene is sometimes abbreviated as: ✓✓ ABS
The unobstructed vertical distance through the free atmosphere between an
outlet and the rim best describes ___________. ✓✓ An air gap in the drainage
system
Air-admittance valves protect traps from _________. ✓✓ Siphonage
Where do gasses escape a sanitary drainage system? ✓✓ A vent stack
A lavatory is __________. ✓✓ a bathroom or washroom sink
An anchoring ring that is secured to the floor is a __________. ✓✓ Water
closet flange
© Get it right 2025 Getaway - Stuvia US All rights reserved
, Click here for more: Scholars nexus
A toilet or commode is referred to in plumbing standards as a ________. ✓✓
Water closet
The flow of liquids in reverse of its intended path describes ________. ✓✓
Backflow
Hot water is ___________. ✓✓ Water at a temperature of 110° F or higher
Closet bolts are often made of ______ because they resist corrosion. ✓✓
Brass
The waste from an automatic clothes washer must discharge its water through
a(n) ________ into a standpipe or into a laundry tub. ✓✓ Air break or air gap
If a standpipe for an automatic clothes washer is used, the standpipe and its
trap should be at least ___ inches in diameter. ✓✓ 2
Plastic bathtubs are made with _________ in case of accidental exposure to a
plumber's torch. ✓✓ Fire-resistant chemicals
© Get it right 2025 Getaway - Stuvia US All rights reserved
