NHIE Plumbing Practice Test 2025
Questions and Answers 100% Pass
Please refer to the figure to answer this question.
In the figure, the plumbing vent termination is
A. installed with all proper clearances
B. too close to the openable window
C. too close to the property line
D. too close to the wall - ✔✔B. too close to the openable window.
A common term for the supply pipes going from the basement ceiling to the upstairs
bathroom is:
A. Verticals
B. Stacks
C. Risers
D. Leaders - ✔✔C. risers
Direct connections between potable water piping and sewer-connected wastes shall:
A. be protected by a check valve
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 1
, B. not exist under any condition
C. be provided with anti-siphon valves
D. be protected by trap primers - ✔✔B. Not exist under any condition.
If a well pump cycles on and off rapidly, it is an indication that
A. someone is turning a faucet on and off
B. the pressure switch is out of adjustment
C. there is a leak in the well supply pipe
D. the pressure tank is probably water logged - ✔✔D. the pressure tank is probably
water logged.
The modern MINIMUM size water service pipe to a residence is
A. 1/2 inch
B. 3/4 inch
C. 1 inch
D. 1 1/4 inch - ✔✔B. 3/4 inch.
Polybutylene (PB) water supply tubing is seen in the house. You should report that
it:
A. may require expensive replacement
B. is illegal to use this kind of pipe
C. should only have been used for a waste pipe
D. is not a problem. PVC pipe is a problem - ✔✔A. May require expensive
replacement.
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 2
Questions and Answers 100% Pass
Please refer to the figure to answer this question.
In the figure, the plumbing vent termination is
A. installed with all proper clearances
B. too close to the openable window
C. too close to the property line
D. too close to the wall - ✔✔B. too close to the openable window.
A common term for the supply pipes going from the basement ceiling to the upstairs
bathroom is:
A. Verticals
B. Stacks
C. Risers
D. Leaders - ✔✔C. risers
Direct connections between potable water piping and sewer-connected wastes shall:
A. be protected by a check valve
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 1
, B. not exist under any condition
C. be provided with anti-siphon valves
D. be protected by trap primers - ✔✔B. Not exist under any condition.
If a well pump cycles on and off rapidly, it is an indication that
A. someone is turning a faucet on and off
B. the pressure switch is out of adjustment
C. there is a leak in the well supply pipe
D. the pressure tank is probably water logged - ✔✔D. the pressure tank is probably
water logged.
The modern MINIMUM size water service pipe to a residence is
A. 1/2 inch
B. 3/4 inch
C. 1 inch
D. 1 1/4 inch - ✔✔B. 3/4 inch.
Polybutylene (PB) water supply tubing is seen in the house. You should report that
it:
A. may require expensive replacement
B. is illegal to use this kind of pipe
C. should only have been used for a waste pipe
D. is not a problem. PVC pipe is a problem - ✔✔A. May require expensive
replacement.
COPYRIGHT © 2025 BY SOPHIA BENNETT, ALL RIGHTS RESERVED 2
