Which of the following site conditions is most likely to lead to foundation settlement in a residential property?

Expansive clay soil with poor drainage

Sandy soil with moderate drainage

Slight slope directing water away from the structure

Presence of vegetation more than 10 feet from the structure

What is the purpose of a GFCI outlet in residential electrical systems?

Protect against electric shock in wet areas

Regulate voltage for large appliances

Prevent electrical fires caused by overload

Increase circuit amperage for high-demand devices

Which location is appropriate for a bathroom exhaust fan to terminate?

Into wall cavity with an air gap

Why should home inspectors recommend further evaluation rather than diagnose the root cause of a complex issue?

To remain within the scope of a visual inspection

To save time during the inspection

Because most inspectors are licensed contractors

To avoid discussing defects with clients

What is the primary concern when a property is located on expansive soil without proper foundation design?

Differential movement may crack the foundation

Soil provides additional insulation

Which of the following would be considered a safety hazard inside a residential electrical panel?

Double-tapped breaker on a single-lug terminal

Circuit breakers labeled with pen

Breakers from the same manufacturer as the panel

Which of the following is a required feature for bathroom exhaust fans according to standard building codes?

Vent to the exterior of the structure

Operate independently from lighting

Be located at least 5 feet from the shower

Which of the following should prompt a recommendation for further evaluation by a qualified specialist?

Furnace short-cycling and failing to heat adequately

Hairline drywall cracks in one room

Carpet with minor wear in traffic area

National Home Inspector Exam

Free Home Inspector Practice Questions

10 sample questions for the National Home Inspector Exam, with the correct answer and an explanation for each. No account needed. Try each one before you open the answer.

Sections covered on the exam: The Property and Building Inspection / Site Review, Analysis of Findings and Reporting, Professional Responsibilities.

Question 1 · The Property and Building Inspection / Site Review
Which of the following site conditions is most likely to lead to foundation settlement in a residential property?
- A.Sandy soil with moderate drainage
- B.Slight slope directing water away from the structure
- C.Expansive clay soil with poor drainage
- D.Presence of vegetation more than 10 feet from the structure
Show answer and explanation
Answer: C. Expansive clay soil with poor drainage
Expansive clay soils retain water and swell, and when dry, they shrink. This constant movement can create stress on a foundation, leading to cracks and settlement. Proper drainage and site grading are essential to mitigate these effects.
Question 2 · The Property and Building Inspection / Site Review
What is the purpose of a GFCI outlet in residential electrical systems?
- A.Regulate voltage for large appliances
- B.Prevent electrical fires caused by overload
- C.Increase circuit amperage for high-demand devices
- D.Protect against electric shock in wet areas
Show answer and explanation
Answer: D. Protect against electric shock in wet areas
Ground Fault Circuit Interrupters (GFCIs) are designed to shut off power if a ground fault is detected, commonly caused by moisture or direct contact with water. They are required in bathrooms, kitchens, garages, and outdoor areas.
Question 3 · The Property and Building Inspection / Site Review
Which location is appropriate for a bathroom exhaust fan to terminate?
- A.Into the attic
- B.Into a soffit vent
- C.Directly to the exterior
- D.Into wall cavity with an air gap
Show answer and explanation
Answer: C. Directly to the exterior
Exhaust fans must vent directly to the outside to remove moisture and reduce mold risk. Terminating into the attic or wall cavity can trap moisture and damage building materials.
Question 4 · The Property and Building Inspection / Site Review
Which of the following appliances is typically included in a home inspection when it is permanently installed?
- A.Refrigerator
- B.Microwave on the counter
- C.Range/oven combo unit
- D.Coffee maker
Show answer and explanation
Answer: C. Range/oven combo unit
Home inspectors are generally required to inspect permanently installed appliances such as ovens, cooktops, and dishwashers. Freestanding or countertop appliances are not included.
Question 5 · Analysis of Findings and Reporting
Why should home inspectors recommend further evaluation rather than diagnose the root cause of a complex issue?
- A.To save time during the inspection
- B.Because most inspectors are licensed contractors
- C.To avoid discussing defects with clients
- D.To remain within the scope of a visual inspection
Show answer and explanation
Answer: D. To remain within the scope of a visual inspection
Home inspections are non-invasive, visual assessments. Inspectors should not diagnose or repair issues but recommend licensed specialists when systems show signs of failure or defects.
Question 6 · The Property and Building Inspection / Site Review
What is the primary concern when a property is located on expansive soil without proper foundation design?
- A.Foundation may settle evenly
- B.Soil provides additional insulation
- C.Differential movement may crack the foundation
- D.Groundwater may not drain
Show answer and explanation
Answer: C. Differential movement may crack the foundation
Expansive soils swell and shrink with moisture changes, leading to uneven stress on foundations. Without specialized design (e.g., post-tensioned slabs), this causes structural cracking.
Question 7 · The Property and Building Inspection / Site Review
Which of the following would be considered a safety hazard inside a residential electrical panel?
- A.Circuit breakers labeled with pen
- B.Paint overspray on panel cover
- C.Double-tapped breaker on a single-lug terminal
- D.Breakers from the same manufacturer as the panel
Show answer and explanation
Answer: C. Double-tapped breaker on a single-lug terminal
Double-tapping (two conductors under one terminal) is a common defect that can lead to loose connections, overheating, and arcing—posing a fire hazard.
Question 8 · The Property and Building Inspection / Site Review
Which of the following is a required feature for bathroom exhaust fans according to standard building codes?
- A.Operate independently from lighting
- B.Be located at least 5 feet from the shower
- C.Vent to the exterior of the structure
- D.Use flexible plastic ducting
Show answer and explanation
Answer: C. Vent to the exterior of the structure
Bathroom exhaust fans must vent to the outside to remove moisture and prevent mold growth. Venting into attics or wall cavities can cause hidden moisture damage.
Question 9 · The Property and Building Inspection / Site Review
Which kitchen appliance is typically required to be evaluated during a standard home inspection when permanently installed?
- A.Refrigerator
- B.Dishwasher
- C.Microwave oven (freestanding)
- D.Toaster oven
Show answer and explanation
Answer: B. Dishwasher
Permanently installed dishwashers fall within the scope of a home inspection. Inspectors typically run a basic cycle to check for leaks, secure mounting, and functionality.
Question 10 · Analysis of Findings and Reporting
Which of the following should prompt a recommendation for further evaluation by a qualified specialist?
- A.Faded paint on exterior trim
- B.Hairline drywall cracks in one room
- C.Furnace short-cycling and failing to heat adequately
- D.Carpet with minor wear in traffic area
Show answer and explanation
Answer: C. Furnace short-cycling and failing to heat adequately
Short-cycling could indicate a serious HVAC issue such as a malfunctioning thermostat or heat exchanger. It requires professional evaluation to ensure safety and functionality.

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