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NATIONAL HOME INSPECTOR
PRACTICE EXAM 2025
Which of the following best describes the statement shown below that appears in a
typical home inspection report? - ANSWER-Conclusion
Which of the following conditions would be least critical to your clients safety? -
ANSWER-A pin hole in the heat exchanger
It is important to maintain a positive grade away from a structure of at least _____ inch
drop per foot for the first 6 feet. - ANSWER-1
The minimum run for a residential stair tread is - ANSWER-9 in
Standard three light electrical testers are not 100% reliable because - ANSWER-Three-
light testers will not detect multiple wiring problems.
Bulging plaster is observed high up on several bedroom walls. The primary concern is
that the bulging plaster is a __________ - ANSWER-Potential safety issue
When calculating the cooling loads for an HVAC system, what are the types of heat
transfer that must be taken into account? - ANSWER-Sensible and latent heat
Which of the following materials would be most likely to have the highest R-value? -
ANSWER-6" fiberglass batt insulation
As a home inspector, you can often determine the approximate age of a home by
observing how it was constructed. Which of the following choices represents the method
of construction that is the oldest? - ANSWER-Post and beam construction
Which of the following locations is often prone to a deficiency when inspecting exterior
insulation and finishing (EIFS) walls system? - ANSWER-At the corners of the
installation
During an inspection, you observe that a heat pump is not working and also that the
condensate pan under the air handler is full of water. What probably happened? -
ANSWER-Since the pan was full, the condensate overflow switch turned the unit off in
order to ensure the condensate did not spill.
(T/F) Home inspectors can never be sued because they are protected by the latest
codes and jurisdiction. - ANSWER-FALSE
HOME
, HOME
Fill in the blank. The V-3 rule states that a wall can usually be considered unsafe if it
leans to such an extent that a plumbing line passing through its center of gravity does
not fall inside the middle _____________ of its bass. - ANSWER-One-third
What's the definition of a Collar Beam? - ANSWER-Nominal 1 or 2 inch thick members
which connect opposite roof rafters.
Which of the following is not up to code? - ANSWER-Egress windows must have a clear
height of at least 16 inches.
Which of the following is not typical during an aluminum siding inspection? - ANSWER-
Removing a piece of siding in order to inspect the wood beneath
When inspecting a home, you observe a whitish, cottony growth on the surface of the
baseboards. Which of the following types of fungi is it? - ANSWER-White-rot fungi
Which should never be included in your report after a pool inspection? - ANSWER-The
risk and probability of children falling in the pool
Which of the following is a benefit or right for which the parties to a contract must
bargain? - ANSWER-Consideration
One who has contracted to be responsible for another or one who assumes
responsibilities or debts in the event of default is known as the _________ - ANSWER-
Surety
Which of the following is not a solid fuel heating device? - ANSWER-An electric heater
Is the roofing material on a house considered a part of the roof drainage system? -
ANSWER-No
As a home inspector, you are required to observe and/or test all of the readily
accessible components of each system. Which of the following is not considered to be a
readily accessible component of a room? - ANSWER-Nails or screws in the floor
According to the international residential code (IRC), rafters are to be fastened to ridge
boards or gusset plates if the pitch of the roof is greater than or equal to what angle? -
ANSWER-3/12
As a home inspector. When you observe a component, you are making this type of
examination: - ANSWER-Visual
How large should the footing or foundation for a masonry fireplace be? - ANSWER->12
inches thick and extent 6 inches beyond the fireplace on all sides.
HOME
NATIONAL HOME INSPECTOR
PRACTICE EXAM 2025
Which of the following best describes the statement shown below that appears in a
typical home inspection report? - ANSWER-Conclusion
Which of the following conditions would be least critical to your clients safety? -
ANSWER-A pin hole in the heat exchanger
It is important to maintain a positive grade away from a structure of at least _____ inch
drop per foot for the first 6 feet. - ANSWER-1
The minimum run for a residential stair tread is - ANSWER-9 in
Standard three light electrical testers are not 100% reliable because - ANSWER-Three-
light testers will not detect multiple wiring problems.
Bulging plaster is observed high up on several bedroom walls. The primary concern is
that the bulging plaster is a __________ - ANSWER-Potential safety issue
When calculating the cooling loads for an HVAC system, what are the types of heat
transfer that must be taken into account? - ANSWER-Sensible and latent heat
Which of the following materials would be most likely to have the highest R-value? -
ANSWER-6" fiberglass batt insulation
As a home inspector, you can often determine the approximate age of a home by
observing how it was constructed. Which of the following choices represents the method
of construction that is the oldest? - ANSWER-Post and beam construction
Which of the following locations is often prone to a deficiency when inspecting exterior
insulation and finishing (EIFS) walls system? - ANSWER-At the corners of the
installation
During an inspection, you observe that a heat pump is not working and also that the
condensate pan under the air handler is full of water. What probably happened? -
ANSWER-Since the pan was full, the condensate overflow switch turned the unit off in
order to ensure the condensate did not spill.
(T/F) Home inspectors can never be sued because they are protected by the latest
codes and jurisdiction. - ANSWER-FALSE
HOME
, HOME
Fill in the blank. The V-3 rule states that a wall can usually be considered unsafe if it
leans to such an extent that a plumbing line passing through its center of gravity does
not fall inside the middle _____________ of its bass. - ANSWER-One-third
What's the definition of a Collar Beam? - ANSWER-Nominal 1 or 2 inch thick members
which connect opposite roof rafters.
Which of the following is not up to code? - ANSWER-Egress windows must have a clear
height of at least 16 inches.
Which of the following is not typical during an aluminum siding inspection? - ANSWER-
Removing a piece of siding in order to inspect the wood beneath
When inspecting a home, you observe a whitish, cottony growth on the surface of the
baseboards. Which of the following types of fungi is it? - ANSWER-White-rot fungi
Which should never be included in your report after a pool inspection? - ANSWER-The
risk and probability of children falling in the pool
Which of the following is a benefit or right for which the parties to a contract must
bargain? - ANSWER-Consideration
One who has contracted to be responsible for another or one who assumes
responsibilities or debts in the event of default is known as the _________ - ANSWER-
Surety
Which of the following is not a solid fuel heating device? - ANSWER-An electric heater
Is the roofing material on a house considered a part of the roof drainage system? -
ANSWER-No
As a home inspector, you are required to observe and/or test all of the readily
accessible components of each system. Which of the following is not considered to be a
readily accessible component of a room? - ANSWER-Nails or screws in the floor
According to the international residential code (IRC), rafters are to be fastened to ridge
boards or gusset plates if the pitch of the roof is greater than or equal to what angle? -
ANSWER-3/12
As a home inspector. When you observe a component, you are making this type of
examination: - ANSWER-Visual
How large should the footing or foundation for a masonry fireplace be? - ANSWER->12
inches thick and extent 6 inches beyond the fireplace on all sides.
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