CONNECTICUT HOME INSPECTOR
LICENSE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025
1. What is the primary purpose of a home inspection?
To evaluate the condition of a home's major systems and components
This helps buyers understand the property's condition before purchase.
2. Which of the following is NOT typically included in a standard home
inspection?
Testing for radon gas
Radon testing usually requires specialized equipment and is often a
separate service.
3. What is the minimum slope recommended for a home's foundation
drainage system?
At least 6 inches drop within the first 10 feet
Proper slope ensures water drains away from the foundation, preventing
water damage.
,4. Which type of roofing material is most prone to cracking in cold weather?
Asphalt shingles
Asphalt shingles can become brittle and crack in freeze-thaw cycles.
5. What is the common spacing between joists in residential floor framing?
16 inches on center
This spacing provides adequate structural support and is a common
standard.
6. What tool is typically used to check for moisture intrusion in wood?
Moisture meter
A moisture meter detects moisture levels in wood, indicating potential
water damage.
7. When inspecting electrical panels, what is the maximum breaker size for a
15-amp circuit?
15 amps
Circuit breakers should match the wire size and load capacity to prevent
overheating.
8. Which type of window is easiest to clean from inside the house?
Double-hung windows with tilt-in sashes
Tilt-in sashes allow easy cleaning without accessing the exterior.
9. What is the minimum clearance required between a gas water heater and
combustible materials?
18 inches
Adequate clearance prevents fire hazards.
, 10.How often should a chimney flue be inspected or cleaned?
At least once a year
Annual inspections prevent buildup of creosote, reducing fire risk.
11.What is the typical maximum height for guardrails on a residential deck?
36 inches
Guardrails must be tall enough to prevent falls but not excessively high.
12.Which of the following materials is commonly used for residential plumbing
supply lines?
Copper
Copper is durable and commonly used in water supply piping.
13.What is the standard size of a residential water heater?
40 to 50 gallons
This range is typical for a family of four.
14.What does GFCI stand for?
Ground Fault Circuit Interrupter
GFCIs protect against electrical shock by quickly shutting off power.
15.Where are GFCI outlets required by code?
Bathrooms, kitchens, garages, and outdoors
These locations are prone to moisture and require extra electrical safety.
16.What is the minimum insulation R-value recommended for attic spaces in
Connecticut?
R-38
Higher insulation values help reduce heating costs in colder climates.
LICENSE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025
1. What is the primary purpose of a home inspection?
To evaluate the condition of a home's major systems and components
This helps buyers understand the property's condition before purchase.
2. Which of the following is NOT typically included in a standard home
inspection?
Testing for radon gas
Radon testing usually requires specialized equipment and is often a
separate service.
3. What is the minimum slope recommended for a home's foundation
drainage system?
At least 6 inches drop within the first 10 feet
Proper slope ensures water drains away from the foundation, preventing
water damage.
,4. Which type of roofing material is most prone to cracking in cold weather?
Asphalt shingles
Asphalt shingles can become brittle and crack in freeze-thaw cycles.
5. What is the common spacing between joists in residential floor framing?
16 inches on center
This spacing provides adequate structural support and is a common
standard.
6. What tool is typically used to check for moisture intrusion in wood?
Moisture meter
A moisture meter detects moisture levels in wood, indicating potential
water damage.
7. When inspecting electrical panels, what is the maximum breaker size for a
15-amp circuit?
15 amps
Circuit breakers should match the wire size and load capacity to prevent
overheating.
8. Which type of window is easiest to clean from inside the house?
Double-hung windows with tilt-in sashes
Tilt-in sashes allow easy cleaning without accessing the exterior.
9. What is the minimum clearance required between a gas water heater and
combustible materials?
18 inches
Adequate clearance prevents fire hazards.
, 10.How often should a chimney flue be inspected or cleaned?
At least once a year
Annual inspections prevent buildup of creosote, reducing fire risk.
11.What is the typical maximum height for guardrails on a residential deck?
36 inches
Guardrails must be tall enough to prevent falls but not excessively high.
12.Which of the following materials is commonly used for residential plumbing
supply lines?
Copper
Copper is durable and commonly used in water supply piping.
13.What is the standard size of a residential water heater?
40 to 50 gallons
This range is typical for a family of four.
14.What does GFCI stand for?
Ground Fault Circuit Interrupter
GFCIs protect against electrical shock by quickly shutting off power.
15.Where are GFCI outlets required by code?
Bathrooms, kitchens, garages, and outdoors
These locations are prone to moisture and require extra electrical safety.
16.What is the minimum insulation R-value recommended for attic spaces in
Connecticut?
R-38
Higher insulation values help reduce heating costs in colder climates.
