PSI NATIONAL HOME INSPECTOR PRACTICE EXAM 2025 UPDATED ACTUAL EXAM WITH
CORRECT SOLUTIONS.
At what level would water pressure within a single-family dwelling begin to be considered excessive and
require correction - (ANSWER)80 PSI
buckling in horizontal vinyl siding is generally caused by - (ANSWER)improper fastening
A newer home with electric heat is being inspected. It has a below grade finished basement containing a
bedroom. The inspector should look for a smoke alarm and - (ANSWER)an escape and rescue opening
A swimming pool fence must prevent passage of a sphere that is larger than - (ANSWER)4 inches
If water infiltration is suspected behind a finished surface, what tool would be the best choice to verify
dampness? - (ANSWER)non-contact moisture meter
Gas-fired furnace heat exchangers most often fail from - (ANSWER)rust and metal fatigue
relative humidity (RH) is expressed as - (ANSWER)percentage
Connections of dissimilar metal in a plumbing system, such as galvanized steel pipe and copper pipe, will
usually cause - (ANSWER)electrolysis
A ground fault circuit interrupter (GFCI) is a safety device that - (ANSWER)disconnects the power when
sensing current leakage to ground
An electrical system with a fuse on the neutral conductor and on the energized (hot) conductors -
(ANSWER)is hazardous and should be corrected
To operate a central air conditioner, an electric clothes dryer, and and electric range, the ampacity of
the service to the house should be AT LEAST - (ANSWER)100 amps at 240 volts
CORRECT SOLUTIONS.
At what level would water pressure within a single-family dwelling begin to be considered excessive and
require correction - (ANSWER)80 PSI
buckling in horizontal vinyl siding is generally caused by - (ANSWER)improper fastening
A newer home with electric heat is being inspected. It has a below grade finished basement containing a
bedroom. The inspector should look for a smoke alarm and - (ANSWER)an escape and rescue opening
A swimming pool fence must prevent passage of a sphere that is larger than - (ANSWER)4 inches
If water infiltration is suspected behind a finished surface, what tool would be the best choice to verify
dampness? - (ANSWER)non-contact moisture meter
Gas-fired furnace heat exchangers most often fail from - (ANSWER)rust and metal fatigue
relative humidity (RH) is expressed as - (ANSWER)percentage
Connections of dissimilar metal in a plumbing system, such as galvanized steel pipe and copper pipe, will
usually cause - (ANSWER)electrolysis
A ground fault circuit interrupter (GFCI) is a safety device that - (ANSWER)disconnects the power when
sensing current leakage to ground
An electrical system with a fuse on the neutral conductor and on the energized (hot) conductors -
(ANSWER)is hazardous and should be corrected
To operate a central air conditioner, an electric clothes dryer, and and electric range, the ampacity of
the service to the house should be AT LEAST - (ANSWER)100 amps at 240 volts
