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NHIE Study Guide Questions with
Detailed Verified Answers
Question: Buckling in horizontal vinyl siding is generally caused by
A. Reflected sunlight.
B. Improper fastening.
C. Condensation in walls.
D. improper house wrap.
Ans: B. Improper fastening.
Question: At what level would water pressure within a single-family dwelling
begin to be considered excessive and require correction?
A. 60 psi
B. 80 psi
C. 100 psi
D. 120 psi.
Ans: B. 80 psi
Question: 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
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A. An escape and rescue opening.
B. carbon monoxide alarm.
C. fire extinguisher.
D. safety ladder.
Ans: A. An escape and rescue opening.
Question: A swimming pool fence must prevent passage of a sphere that is
larger than
A. 2 inches.
B. 3 inches.
C. 4 inches.
D. 5 inches.
Ans: C. 4 inches.
Question: If water infiltration is suspected behind a finished surface. What
tool would be the best choice to verify dampness?
A. an infrared thermometer
B. a pin-type moisture meter
C. a non-contact moisture meter
D. a digital camera
Ans: C. a non-contact moisture meter
Question: Gas-fired furnace heat exchangers most often fail from
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A. Low temperatures.
B. Lack of use.
C. Improper gas pressure.
D. Rust and metal fatigue.
Ans: D. Rust and metal fatigue.
Question: Relative Humidity (RH) is expressed as
A. volume.
B. percentage.
C. capacity.
D. temperature.
Ans: B. percentage.
Question: Connections of dissimilar metal in plumbing system, such as
galvanized steel pipe and copper pipe, will usually
A. reduced water pressure
B. decreased water quality
C. Glazed pipes
D. Electrolysis
Ans: D. Electrolysis
Question: A Ground fault circuit interrupter (GFCI) is a safety device that
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A. disconnects power when the grounding to the outlet is faulty.
B. detects moisture and disconnects power in wet locations.
C. disconnects the power when sensing current leakage to ground.
D. protects against electrical surges and voltage spikes.
Ans: C. disconnects the power when sensing current leakage to ground.
Question: An electrical system with a fuse on the neutral conductor and on
the energized (hot) conductors
A. is twice as safe as a system where only the energized (hot) conductors are
fused.
B. should have the neutral conductor fuse sized to one half the normal
ampacity for the circuit.
C. Is overfused up to 50% if used only for lighting.
D. Is hazardous and should be corrected.
Ans: D. Is hazardous and should be corrected.
Question: To operate a central air conditioner, an electric clothes dryer, and
an electric range,the ampacity of the service to the house should be AT LEAST
A. 100 amps at 120 volts.
B. 125 amps at 120 volts.
C. 60 amps at 240 volts.
D. 100 amps at 240 volts.
NHIE Study Guide Questions with
Detailed Verified Answers
Question: Buckling in horizontal vinyl siding is generally caused by
A. Reflected sunlight.
B. Improper fastening.
C. Condensation in walls.
D. improper house wrap.
Ans: B. Improper fastening.
Question: At what level would water pressure within a single-family dwelling
begin to be considered excessive and require correction?
A. 60 psi
B. 80 psi
C. 100 psi
D. 120 psi.
Ans: B. 80 psi
Question: 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
, Page | 2
A. An escape and rescue opening.
B. carbon monoxide alarm.
C. fire extinguisher.
D. safety ladder.
Ans: A. An escape and rescue opening.
Question: A swimming pool fence must prevent passage of a sphere that is
larger than
A. 2 inches.
B. 3 inches.
C. 4 inches.
D. 5 inches.
Ans: C. 4 inches.
Question: If water infiltration is suspected behind a finished surface. What
tool would be the best choice to verify dampness?
A. an infrared thermometer
B. a pin-type moisture meter
C. a non-contact moisture meter
D. a digital camera
Ans: C. a non-contact moisture meter
Question: Gas-fired furnace heat exchangers most often fail from
, Page | 3
A. Low temperatures.
B. Lack of use.
C. Improper gas pressure.
D. Rust and metal fatigue.
Ans: D. Rust and metal fatigue.
Question: Relative Humidity (RH) is expressed as
A. volume.
B. percentage.
C. capacity.
D. temperature.
Ans: B. percentage.
Question: Connections of dissimilar metal in plumbing system, such as
galvanized steel pipe and copper pipe, will usually
A. reduced water pressure
B. decreased water quality
C. Glazed pipes
D. Electrolysis
Ans: D. Electrolysis
Question: A Ground fault circuit interrupter (GFCI) is a safety device that
, Page | 4
A. disconnects power when the grounding to the outlet is faulty.
B. detects moisture and disconnects power in wet locations.
C. disconnects the power when sensing current leakage to ground.
D. protects against electrical surges and voltage spikes.
Ans: C. disconnects the power when sensing current leakage to ground.
Question: An electrical system with a fuse on the neutral conductor and on
the energized (hot) conductors
A. is twice as safe as a system where only the energized (hot) conductors are
fused.
B. should have the neutral conductor fuse sized to one half the normal
ampacity for the circuit.
C. Is overfused up to 50% if used only for lighting.
D. Is hazardous and should be corrected.
Ans: D. Is hazardous and should be corrected.
Question: To operate a central air conditioner, an electric clothes dryer, and
an electric range,the ampacity of the service to the house should be AT LEAST
A. 100 amps at 120 volts.
B. 125 amps at 120 volts.
C. 60 amps at 240 volts.
D. 100 amps at 240 volts.
