ICC RESIDENTIAL ELECTRICAL INSPECTOR
(E1) EXAMINATION WITH ACTUAL
QUESTIONS AND VERIFIED ANSWERS,
PLUS EXPLAINED RATIONALES/EXPERT
VERIFIED FOR GUARANTEED 100% PASS
2026/LATEST UPDATE/INSTANT
DOWNLOAD PDF
1. A residential electrical inspector is inspecting a newly installed
120/240-volt, single-phase dwelling service. According to the
National Electrical Code (NEC), what is the primary purpose of
the service disconnecting means?
A. To protect branch circuits from overloads
B. To disconnect all ungrounded service conductors from the premises
wiring
C. To provide overcurrent protection for feeders only
D. To regulate service voltage
Answer: B. To disconnect all ungrounded service conductors from
the premises wiring
Rationale: The service disconnecting means provides a single point
where all ungrounded service conductors can be disconnected from the
building wiring. While overcurrent devices are often incorporated into
the service disconnect, its primary purpose is to disconnect power to the
premises.
2. During an inspection, a 200-amp residential service panel contains
the grounded (neutral) conductor bonded to the enclosure. Under
which condition is this permitted?
1
,A. At every panelboard
B. Only at subpanels
C. At the service disconnecting means
D. Never
Answer: C. At the service disconnecting means
Rationale: The grounded conductor is bonded to the enclosure only at
the service disconnecting means. Downstream panelboards supplied as
feeders must keep grounded and equipment grounding conductors
isolated.
3. A homeowner installs NM-B cable through a bored hole located ¾
inch from the face of a wood stud without installing nail plates.
What should the inspector require?
A. Nothing; installation complies
B. Install conduit
C. Install steel nail plates
D. Replace the cable with MC cable
Answer: C. Install steel nail plates
Rationale: When cables are installed less than 1¼ inches from the
nearest edge of framing members, steel nail plates or equivalent
protection must be provided to prevent damage from nails or screws.
4. A kitchen countertop receptacle is installed 30 inches from the
edge of the countertop. Does this installation comply?
A. Yes
2
,B. No, receptacles must be located so that no point along the wall line is
more than 24 inches from a receptacle
C. No, maximum spacing is 18 inches
D. Yes, if GFCI protected
Answer: B. No, receptacles must be located so that no point along
the wall line is more than 24 inches from a receptacle
Rationale: Kitchen countertop receptacles are spaced so that no point
along the wall line is more than 24 inches from a receptacle, minimizing
reliance on extension cords.
5. Which receptacles in a dwelling kitchen require GFCI protection?
A. Refrigerator only
B. Countertop receptacles only
C. All receptacles serving countertop surfaces and other locations
identified by NEC
D. None
Answer: C. All receptacles serving countertop surfaces and other
locations identified by NEC
Rationale: Modern NEC editions require GFCI protection for kitchen
countertop receptacles and additional receptacles in kitchens depending
on location and purpose.
6. Which of the following best describes AFCI protection?
A. Protects equipment from voltage surges
B. Detects dangerous arcing conditions that may cause fires
3
, C. Prevents overloads
D. Protects only lighting circuits
Answer: B. Detects dangerous arcing conditions that may cause fires
Rationale: Arc-Fault Circuit Interrupters detect hazardous arc
signatures associated with damaged conductors, loose connections, and
deteriorated wiring before they ignite combustible materials.
7. What is the minimum cover depth for Schedule 40 PVC conduit
containing residential branch-circuit conductors under a residential
driveway?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Answer: C. 18 inches
Rationale: The NEC specifies minimum burial depths based on wiring
method and location. Residential driveways generally require 18 inches
of cover for PVC conduit installations.
8. Which conductor is intentionally grounded?
A. Equipment grounding conductor
B. Grounded conductor
C. Ungrounded conductor
D. Bonding jumper
Answer: B. Grounded conductor
4
(E1) EXAMINATION WITH ACTUAL
QUESTIONS AND VERIFIED ANSWERS,
PLUS EXPLAINED RATIONALES/EXPERT
VERIFIED FOR GUARANTEED 100% PASS
2026/LATEST UPDATE/INSTANT
DOWNLOAD PDF
1. A residential electrical inspector is inspecting a newly installed
120/240-volt, single-phase dwelling service. According to the
National Electrical Code (NEC), what is the primary purpose of
the service disconnecting means?
A. To protect branch circuits from overloads
B. To disconnect all ungrounded service conductors from the premises
wiring
C. To provide overcurrent protection for feeders only
D. To regulate service voltage
Answer: B. To disconnect all ungrounded service conductors from
the premises wiring
Rationale: The service disconnecting means provides a single point
where all ungrounded service conductors can be disconnected from the
building wiring. While overcurrent devices are often incorporated into
the service disconnect, its primary purpose is to disconnect power to the
premises.
2. During an inspection, a 200-amp residential service panel contains
the grounded (neutral) conductor bonded to the enclosure. Under
which condition is this permitted?
1
,A. At every panelboard
B. Only at subpanels
C. At the service disconnecting means
D. Never
Answer: C. At the service disconnecting means
Rationale: The grounded conductor is bonded to the enclosure only at
the service disconnecting means. Downstream panelboards supplied as
feeders must keep grounded and equipment grounding conductors
isolated.
3. A homeowner installs NM-B cable through a bored hole located ¾
inch from the face of a wood stud without installing nail plates.
What should the inspector require?
A. Nothing; installation complies
B. Install conduit
C. Install steel nail plates
D. Replace the cable with MC cable
Answer: C. Install steel nail plates
Rationale: When cables are installed less than 1¼ inches from the
nearest edge of framing members, steel nail plates or equivalent
protection must be provided to prevent damage from nails or screws.
4. A kitchen countertop receptacle is installed 30 inches from the
edge of the countertop. Does this installation comply?
A. Yes
2
,B. No, receptacles must be located so that no point along the wall line is
more than 24 inches from a receptacle
C. No, maximum spacing is 18 inches
D. Yes, if GFCI protected
Answer: B. No, receptacles must be located so that no point along
the wall line is more than 24 inches from a receptacle
Rationale: Kitchen countertop receptacles are spaced so that no point
along the wall line is more than 24 inches from a receptacle, minimizing
reliance on extension cords.
5. Which receptacles in a dwelling kitchen require GFCI protection?
A. Refrigerator only
B. Countertop receptacles only
C. All receptacles serving countertop surfaces and other locations
identified by NEC
D. None
Answer: C. All receptacles serving countertop surfaces and other
locations identified by NEC
Rationale: Modern NEC editions require GFCI protection for kitchen
countertop receptacles and additional receptacles in kitchens depending
on location and purpose.
6. Which of the following best describes AFCI protection?
A. Protects equipment from voltage surges
B. Detects dangerous arcing conditions that may cause fires
3
, C. Prevents overloads
D. Protects only lighting circuits
Answer: B. Detects dangerous arcing conditions that may cause fires
Rationale: Arc-Fault Circuit Interrupters detect hazardous arc
signatures associated with damaged conductors, loose connections, and
deteriorated wiring before they ignite combustible materials.
7. What is the minimum cover depth for Schedule 40 PVC conduit
containing residential branch-circuit conductors under a residential
driveway?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
Answer: C. 18 inches
Rationale: The NEC specifies minimum burial depths based on wiring
method and location. Residential driveways generally require 18 inches
of cover for PVC conduit installations.
8. Which conductor is intentionally grounded?
A. Equipment grounding conductor
B. Grounded conductor
C. Ungrounded conductor
D. Bonding jumper
Answer: B. Grounded conductor
4
