Practice Test with Rationales
1. Which of the following is the primary purpose of a home
inspection?
A. To identify material defects in a property
B. To provide a guarantee on property condition
C. To appraise property value
D. To provide legal advice
The purpose of a home inspection is to identify observable
material defects in the property at the time of inspection, not to
appraise or guarantee.
2. What is the standard minimum height for a residential
guardrail?
A. 30 inches
B. 32 inches
C. 36 inches
D. 42 inches
Residential guardrails must be at least 36 inches high to prevent
falls from elevated surfaces.
3. A GFCI outlet is required in which area?
A. Living rooms
B. Bathrooms
C. Bedrooms
D. Hallways
GFCI (Ground Fault Circuit Interrupter) outlets are required in
wet areas like bathrooms to reduce electrocution risk.
4. What type of roof is most prone to ice dams?
A. Flat roof
B. Sloped roof with eaves
C. Metal roof
, D. Tile roof
Ice dams occur when heat escapes from the attic, melts snow,
and it refreezes at the eaves, common on sloped roofs.
5. Which component prevents backflow in a plumbing system?
A. Check valve
B. Gate valve
C. Ball valve
D. Relief valve
A check valve allows flow in one direction, preventing water
from backing up.
6. What is the minimum slope for a horizontal drainpipe?
A. 1/16 inch per foot
B. 1/4 inch per foot
C. 1/2 inch per foot
D. 1 inch per foot
Drainpipes require at least 1/4 inch per foot slope for proper
drainage.
7. Which insulation type is commonly found in attics of older
homes?
A. Spray foam
B. Loose-fill cellulose
C. Rigid foam board
D. Fiberglass batts
Older homes often have loose-fill cellulose in attics as retrofitted
insulation.
8. What is the typical lifespan of a standard asphalt shingle roof?
A. 5–10 years
B. 20–30 years
C. 40–50 years
D. 60 years
, Standard asphalt shingles last approximately 20–30 years,
depending on climate and maintenance.
9. Which of the following is considered a material defect?
A. Personal preference for paint color
B. Minor cosmetic scratches
C. Structural foundation crack
D. Furniture placement
A material defect affects the integrity or safety of the home.
10. How often should a chimney flue be inspected?
A. Every year
B. Every 1–2 years
C. Every 5 years
D. Only when sold
Chimneys should be inspected regularly to prevent fire hazards.
11. Which HVAC component removes humidity from indoor
air?
A. Heater coil
B. Air conditioner coil
C. Thermostat
D. Ductwork
The AC coil cools and dehumidifies air, improving indoor
comfort.
12. What is the proper clearance from a gas water heater to
combustible materials?
A. 1 inch
B. 3 inches
C. 6 inches
D. 12 inches
Most codes require at least 6 inches clearance from combustible
surfaces.