Mixed Deck — All Home Inspector Test Topics Flashcards
100 cards from real Home Inspector Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 20 Mixed Deck — All Home Inspector Test Topics flashcards as text
Which of the following is not a heating system that uses solid fuel?
Answer: An electric heater
Solid fuel heating systems generate heat by burning solid materials such as wood (e.g., woodstoves, fireplaces) or coal (e.g., coal furnaces). An electric heater, in contrast, operates by converting electrical energy directly into heat through resistance. Therefore, an electric heater does not use solid fuel and belongs to a different category of heating systems.
Which of the following is the correct test method a home inspector uses to check for a cracked heat exchanger?
Answer: Observing flame behavior when the blower activates, listening for odors, and using a combustion gas analyzer
Home inspectors check for heat exchanger cracks by observing flame deflection when the blower starts, noting odors at registers, and using a combustion gas detector — not by disassembly.
What is the minimum required headroom clearance on a stairway according to most residential building codes?
Answer: 6 feet 8 inches
Residential building codes typically require a minimum of 6 feet 8 inches of headroom measured vertically from the stair nosing to any obstruction above.
A home inspector sees moss growing on the north-facing slope of a roof. What is the primary structural concern?
Answer: Moss retains moisture that accelerates shingle deterioration and decay
Moss holds moisture against the roof surface, accelerating the breakdown of shingle granules and potentially causing wood rot in the underlying deck.
The thermocouple or flame sensor in a gas furnace is designed to do what if it fails to detect a flame?
Answer: Signal the control board to lock out and stop gas flow
The flame sensor sends a signal proving ignition; if it fails to sense a flame within a set period, the control board shuts off the gas valve to prevent unburned gas accumulation.
What does the term 'material defect' mean in the context of a home inspection report?
Answer: A condition that has a significant adverse impact on the value of the property or that poses an unreasonable risk to people
A material defect is defined by its impact on safety, habitability, or property value — not simply by repair cost or visibility.
Which type of window defect is most reliably identified during a remote video inspection?
Answer: Failed thermal seal causing visible fogging between panes
Fogging or condensation between window panes is clearly visible on camera and is a reliable indicator of failed insulated glazing units.
What is the primary purpose of a clean-out fitting in a DWV system?
Answer: To provide access for clearing blockages
Clean-out fittings provide accessible openings so drain snakes or hydro-jet equipment can be inserted to clear obstructions.
Which condition is a home inspector MOST likely to find in a roof with insufficient attic ventilation?
Answer: Premature shingle aging and potential for ice dam formation
Poor attic ventilation traps heat and moisture, causing shingles to age prematurely from heat below and increasing the risk of ice dams in cold climates.
When inspecting a two-story home, the inspector finds that a second-floor bath drain connects directly to the vent stack above the first-floor drain connection. What is this arrangement called?
Answer: Wet venting
Wet venting is when a single pipe serves as both a drain and a vent, which is permitted under specific code conditions for certain fixture combinations.
When inspecting a forced-air furnace system, an inspector notes that the metal flue pipe has a horizontal run of 8 feet before it enters the chimney. For proper drafting of exhaust gases, this horizontal pipe should:
Answer: Have a continuous upward slope towards the chimney
The flue vent for a standard-efficiency furnace must have a continuous upward slope from the furnace to the chimney, typically a minimum of 1/4 inch per foot of horizontal run. This upward slope helps the hot, buoyant exhaust gases to vent naturally and prevents condensation from running back into the furnace.
What type of insulation is typically required to be covered with a thermal barrier (such as drywall) when installed in living spaces?
Answer: Spray polyurethane foam (SPF)
Spray polyurethane foam is combustible and must be covered with an approved thermal barrier like ½-inch drywall to limit fire spread in occupied spaces.
What is the minimum recommended clearance between the bottom of a wood structural member and the ground in a crawl space?
Answer: 18 inches
A minimum of 18 inches of clearance between wood framing and soil in a crawl space is required to prevent moisture damage and pest intrusion.
Which of the following best describes 'hydrostatic pressure' as it relates to foundation inspection?
Answer: Water pressure exerted against foundation walls and floors by saturated soil or a high water table
Hydrostatic pressure is the lateral and upward force exerted by water-saturated soil or groundwater against foundation walls and slabs, a leading cause of basement water intrusion.
What is the purpose of the blower door on a furnace cabinet?
Answer: To prevent air from the blower compartment from mixing with combustion air and maintain proper airflow
The blower door separates the blower compartment from the burner/heat exchanger and must be installed for safe and efficient operation.
What type of roof damage is most commonly associated with hailstorm events on asphalt shingle roofs?
Answer: Bruised or dented shingles with localized granule loss creating soft spots
Hail impact bruises asphalt shingles, knocking off granules and creating soft spots in the mat that accelerate water infiltration and shingle failure.
A home built in 1965 has ungrounded two-prong outlets throughout. A seller has replaced some with three-prong outlets without rewiring. What should the inspector note?
Answer: The added third prong is a false ground unless the circuit was rewired or a GFCI outlet was installed and labeled 'No Equipment Ground'
Installing a three-prong outlet on an ungrounded circuit creates a false sense of safety unless GFCI protection is added and the outlet labeled as having no equipment ground.
What is the minimum slope required for a 3-inch horizontal drain pipe per the International Plumbing Code?
Answer: 1/8 inch per foot
A 3-inch horizontal drain requires a minimum slope of 1/8 inch per foot (approximately 1%) to ensure adequate flow.
What lighting condition should a homeowner be instructed to create before a virtual attic inspection?
Answer: Adequate portable lighting pointed at structural members and insulation
Portable lighting directed at rafters, sheathing, and insulation ensures the inspector can detect mold, damage, or inadequate insulation on camera.
As they rust, In masonry walls, steel lintels over doors and windows will _____________.
Answer: Make a horizontal crack in the mortar joints at the top corners of the windows
When steel lintels, which support masonry above openings, begin to rust, they expand significantly, sometimes up to seven times their original volume. This expansion exerts immense pressure on the surrounding brickwork. The stress typically manifests as horizontal cracks in the mortar joints, particularly at the top corners of window and door openings, indicating structural distress caused by the expanding rust.