NEW JERSEY HOME INSPECTOR LICENSE
PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025
1. What is the minimum clearance required between the bottom of a wood
beam and the soil in a crawl space?
A. 6 inches
B. 18 inches
C. 24 inches
D. 12 inches
Rationale: The standard clearance between wood framing and soil in a crawl
space is 18 inches to prevent moisture damage and pest issues.
2. A home inspector in New Jersey must keep inspection records for at least:
A. 1 year
B. 3 years
,C. 5 years
D. 7 years
Rationale: According to NJAC 13:40-15, licensed inspectors must retain records
for a minimum of five years.
3. What type of wiring is generally considered obsolete and potentially
hazardous in older homes?
A. BX cable
B. Knob and tube
C. NM cable
D. Conduit
Rationale: Knob and tube wiring lacks grounding and may not handle modern
loads, posing a fire hazard.
4. The most common cause of foundation cracks is:
A. Wind pressure
B. Soil movement
C. Frost heave
D. Tree roots
Rationale: Expansive soil conditions and settlement due to moisture fluctuations
are typical causes of foundation cracks.
, 5. New Jersey home inspectors must be supervised for how many hours
before becoming fully licensed?
A. 120
B. 150
C. 250
D. 300
Rationale: NJ requires 250 supervised hours during the training phase of
licensure under N.J.A.C. 13:40-15.
6. Double-tapping in an electric panel refers to:
A. Installing two panels on one service
B. Connecting two wires to a single breaker terminal
C. Using double-pole breakers
D. Connecting two services together
Rationale: Double-tapping is the practice of attaching two conductors to a
breaker terminal designed for one.
7. What is the acceptable slope for grading away from a home’s foundation?
A. 1% for 5 feet
B. 6 inches per 10 feet
C. 3 inches per 3 feet
D. 12 inches per 10 feet
PRACTICE EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025
1. What is the minimum clearance required between the bottom of a wood
beam and the soil in a crawl space?
A. 6 inches
B. 18 inches
C. 24 inches
D. 12 inches
Rationale: The standard clearance between wood framing and soil in a crawl
space is 18 inches to prevent moisture damage and pest issues.
2. A home inspector in New Jersey must keep inspection records for at least:
A. 1 year
B. 3 years
,C. 5 years
D. 7 years
Rationale: According to NJAC 13:40-15, licensed inspectors must retain records
for a minimum of five years.
3. What type of wiring is generally considered obsolete and potentially
hazardous in older homes?
A. BX cable
B. Knob and tube
C. NM cable
D. Conduit
Rationale: Knob and tube wiring lacks grounding and may not handle modern
loads, posing a fire hazard.
4. The most common cause of foundation cracks is:
A. Wind pressure
B. Soil movement
C. Frost heave
D. Tree roots
Rationale: Expansive soil conditions and settlement due to moisture fluctuations
are typical causes of foundation cracks.
, 5. New Jersey home inspectors must be supervised for how many hours
before becoming fully licensed?
A. 120
B. 150
C. 250
D. 300
Rationale: NJ requires 250 supervised hours during the training phase of
licensure under N.J.A.C. 13:40-15.
6. Double-tapping in an electric panel refers to:
A. Installing two panels on one service
B. Connecting two wires to a single breaker terminal
C. Using double-pole breakers
D. Connecting two services together
Rationale: Double-tapping is the practice of attaching two conductors to a
breaker terminal designed for one.
7. What is the acceptable slope for grading away from a home’s foundation?
A. 1% for 5 feet
B. 6 inches per 10 feet
C. 3 inches per 3 feet
D. 12 inches per 10 feet
