Home Inspector Test Ultimate Home Inspector 2 — Questions and Answers
Question 1: When inspecting a crawl space, what minimum clearance height is generally required between the ground and the floor joists?
- 12 inches
- 18 inches (Correct answer)
- 24 inches
- 36 inches
Correct answer: 18 inches
Most building codes and inspection standards require at least 18 inches of clearance in crawl spaces to allow for adequate access and moisture management.
Question 2: A home inspector observes that the dryer vent terminates inside the attic. What is the primary concern with this installation?
- It reduces dryer efficiency
- It can cause moisture accumulation and mold growth (Correct answer)
- It voids the dryer warranty
- It creates excess noise
Correct answer: It can cause moisture accumulation and mold growth
Dryer vents must terminate outside the building; venting into the attic deposits moisture and lint, creating ideal conditions for mold and a fire hazard.
Question 3: Which of the following window defects is considered a safety hazard in rooms used as sleeping areas?
- Fogged dual-pane glazing
- Windows that do not open at least 5.7 square feet (Correct answer)
- Cracked window sill paint
- Broken window screen
Correct answer: Windows that do not open at least 5.7 square feet
Egress windows in sleeping rooms must provide a minimum 5.7 sq ft net clear opening so occupants can escape in an emergency.
Question 4: An inspector notes that a gas water heater in a garage is installed with its pilot and burner less than 18 inches above the floor. Why is this a concern?
- It decreases water heating efficiency
- Flammable vapors from vehicles accumulate near the floor and can ignite (Correct answer)
- It makes the unit harder to service
- It violates energy code minimums
Correct answer: Flammable vapors from vehicles accumulate near the floor and can ignite
Gasoline vapors from vehicles are heavier than air and pool at floor level; ignition sources must be elevated at least 18 inches to keep them above the vapor layer.
Question 5: What does the term 'flashing' refer to in the context of a home inspection?
- Exposed wiring insulation
- Thin metal or membrane strips that direct water away from joints and penetrations (Correct answer)
- Reflective attic insulation
- A roof vent with a rotating cap
Correct answer: Thin metal or membrane strips that direct water away from joints and penetrations
Flashing is sheet metal or membrane material installed at roof intersections, chimneys, skylights, and other penetrations to prevent water infiltration.
Question 6: During a plumbing inspection, what does a 'trap' in a drain line primarily prevent?
- Pipe freezing in cold climates
- Sewer gases from entering the living space (Correct answer)
- Debris clogs in main drain lines
- Water hammer in supply pipes
Correct answer: Sewer gases from entering the living space
A plumbing trap holds a water seal that blocks sewer gases, including potentially toxic methane and hydrogen sulfide, from entering the home.
Question 7: An inspector finds that the grading around a home's foundation slopes toward the building. What is the recommended correction?
- Install interior drain tile
- Re-grade so the soil slopes away at least 6 inches over the first 10 feet (Correct answer)
- Add window wells to basement windows
- Apply waterproof coating to the interior wall
Correct answer: Re-grade so the soil slopes away at least 6 inches over the first 10 feet
Positive drainage requires the grade to fall at least 6 inches within the first 10 feet from the foundation to direct surface water away and prevent basement seepage.
When inspecting a crawl space, what minimum clearance height is generally required between the ground and the floor joists?