ICC Residential Electrical Inspector Newest 2025-
2026-2027 Updated Practice Exam | 100 Actual
Most Tested Questions Collections & Verified
Detailed Answers From Past Papers | Expert
Verified Success Exam) Graded A+
1. A residential bathroom receptacle outlet is required to be protected by
which device?
A. Standard circuit breaker
B. AFCI only
C. GFCI protection
D. Surge protective device
Answer: C. GFCI protection ✓
Rationale: Bathrooms require Ground-Fault Circuit Interrupter (GFCI) protection
to reduce shock hazards due to moisture presence.
2. What is the minimum number of 20-ampere small appliance branch circuits
required in a kitchen?
A. One
B. Two
C. Three
D. Four
Answer: B. Two ✓
Rationale: The NEC requires at least two 20A small appliance circuits for kitchen
countertop receptacles.
3. Which of the following requires AFCI protection in a dwelling unit?
,A. Garage lighting circuit
B. Bathroom receptacle circuit
C. Bedroom branch circuit
D. Outdoor lighting circuit
Answer: C. Bedroom branch circuit ✓
Rationale: Arc-Fault Circuit Interrupter (AFCI) protection is required for most
dwelling unit living areas including bedrooms.
4. What is the maximum height allowed for a wall-mounted receptacle above
a countertop to meet code requirements?
A. 12 inches
B. 18 inches
C. 20 inches
D. No maximum height specified
Answer: D. No maximum height specified ✓
Rationale: The NEC specifies minimum spacing requirements, not a maximum
height above countertops.
5. A 20-ampere circuit supplying kitchen countertops must serve how much
total countertop length minimum?
A. 6 feet
B. 8 feet
C. 10 feet
D. 12 feet
Answer: C. 10 feet ✓
Rationale: Receptacles must be installed so no point along the counter is more
than 24 inches from an outlet, resulting in about 10 feet coverage per circuit.
, 6. What is the minimum burial depth for a PVC conduit (Schedule 40) used for
residential branch circuits under a yard?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Answer: B. 12 inches ✓
Rationale: PVC conduit for residential branch circuits typically requires a minimum
burial depth of 12 inches when GFCI protected.
7. Which conductor is required to be green or bare?
A. Neutral conductor
B. Ungrounded conductor
C. Equipment grounding conductor
D. Hot feeder conductor
Answer: C. Equipment grounding conductor ✓
Rationale: The equipment grounding conductor (EGC) must be green or bare for
identification.
8. What is the standard voltage for residential single-phase service in the U.S.?
A. 120V
B. 120/240V
C. 240/480V
D. 208Y/120V
Answer: B. 120/240V ✓
Rationale: Most U.S. residences use a 120/240V single-phase split system.
, 9. A GFCI device is designed to trip when leakage current exceeds
approximately:
A. 1 mA
B. 3 mA
C. 5 mA
D. 10 mA
Answer: C. 5 mA ✓
Rationale: GFCIs typically trip at around 5 milliamperes of imbalance current.
10.What is the minimum working clearance depth in front of an electrical
panel rated 120/240V?
A. 2 feet
B. 3 feet
C. 4 feet
D. 5 feet
Answer: B. 3 feet ✓
Rationale: NEC requires a minimum 36-inch working clearance depth.
11.In residential wiring, what is the purpose of a neutral conductor?
A. Carry fault current only
B. Provide grounding path
C. Carry return current under normal operation
D. Increase circuit voltage
Answer: C. Carry return current under normal operation ✓
Rationale: The neutral conductor carries return current back to the source under
normal conditions.
2026-2027 Updated Practice Exam | 100 Actual
Most Tested Questions Collections & Verified
Detailed Answers From Past Papers | Expert
Verified Success Exam) Graded A+
1. A residential bathroom receptacle outlet is required to be protected by
which device?
A. Standard circuit breaker
B. AFCI only
C. GFCI protection
D. Surge protective device
Answer: C. GFCI protection ✓
Rationale: Bathrooms require Ground-Fault Circuit Interrupter (GFCI) protection
to reduce shock hazards due to moisture presence.
2. What is the minimum number of 20-ampere small appliance branch circuits
required in a kitchen?
A. One
B. Two
C. Three
D. Four
Answer: B. Two ✓
Rationale: The NEC requires at least two 20A small appliance circuits for kitchen
countertop receptacles.
3. Which of the following requires AFCI protection in a dwelling unit?
,A. Garage lighting circuit
B. Bathroom receptacle circuit
C. Bedroom branch circuit
D. Outdoor lighting circuit
Answer: C. Bedroom branch circuit ✓
Rationale: Arc-Fault Circuit Interrupter (AFCI) protection is required for most
dwelling unit living areas including bedrooms.
4. What is the maximum height allowed for a wall-mounted receptacle above
a countertop to meet code requirements?
A. 12 inches
B. 18 inches
C. 20 inches
D. No maximum height specified
Answer: D. No maximum height specified ✓
Rationale: The NEC specifies minimum spacing requirements, not a maximum
height above countertops.
5. A 20-ampere circuit supplying kitchen countertops must serve how much
total countertop length minimum?
A. 6 feet
B. 8 feet
C. 10 feet
D. 12 feet
Answer: C. 10 feet ✓
Rationale: Receptacles must be installed so no point along the counter is more
than 24 inches from an outlet, resulting in about 10 feet coverage per circuit.
, 6. What is the minimum burial depth for a PVC conduit (Schedule 40) used for
residential branch circuits under a yard?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Answer: B. 12 inches ✓
Rationale: PVC conduit for residential branch circuits typically requires a minimum
burial depth of 12 inches when GFCI protected.
7. Which conductor is required to be green or bare?
A. Neutral conductor
B. Ungrounded conductor
C. Equipment grounding conductor
D. Hot feeder conductor
Answer: C. Equipment grounding conductor ✓
Rationale: The equipment grounding conductor (EGC) must be green or bare for
identification.
8. What is the standard voltage for residential single-phase service in the U.S.?
A. 120V
B. 120/240V
C. 240/480V
D. 208Y/120V
Answer: B. 120/240V ✓
Rationale: Most U.S. residences use a 120/240V single-phase split system.
, 9. A GFCI device is designed to trip when leakage current exceeds
approximately:
A. 1 mA
B. 3 mA
C. 5 mA
D. 10 mA
Answer: C. 5 mA ✓
Rationale: GFCIs typically trip at around 5 milliamperes of imbalance current.
10.What is the minimum working clearance depth in front of an electrical
panel rated 120/240V?
A. 2 feet
B. 3 feet
C. 4 feet
D. 5 feet
Answer: B. 3 feet ✓
Rationale: NEC requires a minimum 36-inch working clearance depth.
11.In residential wiring, what is the purpose of a neutral conductor?
A. Carry fault current only
B. Provide grounding path
C. Carry return current under normal operation
D. Increase circuit voltage
Answer: C. Carry return current under normal operation ✓
Rationale: The neutral conductor carries return current back to the source under
normal conditions.
