ICC RESIDENTIAL ELECTRICAL INSPECTOR
Practice Examination — 120 Multiple Choice Questions with Answers and Rationales
1. The ICC Residential Electrical Inspector certification primarily tests an
inspector's knowledge of electrical provisions found in:
A. The International Building Code only
B. The International Residential Code (IRC) electrical chapters and the NEC as
referenced
C. The International Fire Code only
D. The International Mechanical Code
Correct Answer: B. The International Residential Code (IRC) electrical chapters
and the NEC as referenced
Rationale: The Residential Electrical Inspector exam focuses on the IRC's electrical
chapters (which are based on the NEC) as applied to one- and two-family dwellings.
2. The National Electrical Code (NEC) is published as:
A. NFPA 70
B. IRC Chapter 4
C. ASCE 7
D. NFPA 101
Correct Answer: A. NFPA 70
Rationale: The NEC is NFPA 70, the nationally recognized standard for safe
electrical installation referenced by the IRC for residential wiring.
3. When the IRC and the NEC both address the same residential electrical
installation requirement, the inspector should generally:
A. Ignore the NEC entirely
B. Apply the requirements as adopted and amended by the jurisdiction,
recognizing the IRC electrical provisions are based on the NEC
C. Always apply the IBC instead
D. Apply whichever code is more lenient
Correct Answer: B. Apply the requirements as adopted and amended by the
jurisdiction, recognizing the IRC electrical provisions are based on the NEC
Rationale: The IRC's electrical provisions are extracted from and coordinated with
the NEC; the locally adopted and amended code governs the specific jurisdiction.
,4. A permit for residential electrical work is generally required before:
A. Any electrical installation, alteration, or repair covered by the code begins
B. Only after the work is completed
C. Only for service upgrades
D. Only for commercial tenants
Correct Answer: A. Any electrical installation, alteration, or repair covered by
the code begins
Rationale: Electrical permits are typically required prior to starting covered work so
the authority having jurisdiction can review and inspect the installation.
5. The primary purpose of a residential electrical inspection is to:
A. Verify installations comply with the adopted code to protect life and property
from electrical hazards
B. Approve the electrician's invoice
C. Determine the homeowner's insurance premium
D. Certify the contractor's business license only
Correct Answer: A. Verify installations comply with the adopted code to
protect life and property from electrical hazards
Rationale: Inspections confirm that electrical work meets code requirements
intended to prevent shock, fire, and other hazards.
6. If an inspector discovers a code violation during a residential electrical
inspection, the appropriate action is typically to:
A. Ignore minor items to save time
B. Document the violation and require correction before final approval
C. Approve the work regardless
D. Perform the repair personally
Correct Answer: B. Document the violation and require correction before final
approval
Rationale: Inspectors document violations and require correction, consistent with
the adopted code, before granting approval or a certificate of occupancy.
,7. "Authority Having Jurisdiction" (AHJ) refers to:
A. The organization or individual responsible for enforcing the code
B. The homeowner
C. The product manufacturer
D. The electrical supply store
Correct Answer: A. The organization or individual responsible for enforcing
the code
Rationale: The AHJ is the entity (often a building/electrical official) responsible for
interpreting and enforcing code requirements.
8. Listed and labeled electrical equipment means the equipment has been:
A. Evaluated by a recognized testing laboratory and found to meet applicable
safety standards
B. Simply advertised as safe by the manufacturer
C. Approved only by the installer
D. Sold at a licensed retailer
Correct Answer: A. Evaluated by a recognized testing laboratory and found to
meet applicable safety standards
Rationale: Listing and labeling by a nationally recognized testing laboratory (e.g.,
UL) indicates the product has been evaluated against applicable safety standards.
9. Rough-in electrical inspections are generally performed:
A. After walls are finished and painted
B. Before wiring is concealed by insulation, drywall, or other building finishes
C. Only after the final inspection
D. Only for service equipment
Correct Answer: B. Before wiring is concealed by insulation, drywall, or other
building finishes
Rationale: Rough-in inspections occur while wiring, boxes, and cable runs are still
visible and accessible, before they are covered by finishes.
, 10. A final electrical inspection typically verifies that:
A. The installation is complete, devices are installed and functioning, and
covers/plates are in place per code
B. Only the service panel exists
C. The rough-in inspection was never needed
D. Only that permits were paid
Correct Answer: A. The installation is complete, devices are installed and
functioning, and covers/plates are in place per code
Rationale: The final inspection confirms the completed installation, including
devices, fixtures, and covers, complies with the code and is ready for use.
11. Where a conflict exists between a manufacturer's installation instructions
and the NEC, the inspector should generally require:
A. Compliance with whichever is less restrictive
B. Compliance with both, since listed equipment must be installed per its listing
and instructions in addition to the code
C. Compliance with the manufacturer's instructions only, ignoring the code
D. Neither; installer discretion controls
Correct Answer: B. Compliance with both, since listed equipment must be
installed per its listing and instructions in addition to the code
Rationale: Listed equipment must be installed in accordance with its listing and
manufacturer's instructions, which are enforceable as part of code compliance.
12. Which of the following best describes the inspector's role regarding code
interpretation disputes?
A. The inspector has no authority to interpret the code
B. The AHJ/inspector renders interpretations, subject to appeal processes
established by the jurisdiction
C. Only the electrician may interpret the code
D. Interpretation is left entirely to the manufacturer
Correct Answer: B. The AHJ/inspector renders interpretations, subject to
appeal processes established by the jurisdiction
Rationale: The AHJ interprets and enforces the code, and jurisdictions typically
provide an appeals process for disputed interpretations.
Practice Examination — 120 Multiple Choice Questions with Answers and Rationales
1. The ICC Residential Electrical Inspector certification primarily tests an
inspector's knowledge of electrical provisions found in:
A. The International Building Code only
B. The International Residential Code (IRC) electrical chapters and the NEC as
referenced
C. The International Fire Code only
D. The International Mechanical Code
Correct Answer: B. The International Residential Code (IRC) electrical chapters
and the NEC as referenced
Rationale: The Residential Electrical Inspector exam focuses on the IRC's electrical
chapters (which are based on the NEC) as applied to one- and two-family dwellings.
2. The National Electrical Code (NEC) is published as:
A. NFPA 70
B. IRC Chapter 4
C. ASCE 7
D. NFPA 101
Correct Answer: A. NFPA 70
Rationale: The NEC is NFPA 70, the nationally recognized standard for safe
electrical installation referenced by the IRC for residential wiring.
3. When the IRC and the NEC both address the same residential electrical
installation requirement, the inspector should generally:
A. Ignore the NEC entirely
B. Apply the requirements as adopted and amended by the jurisdiction,
recognizing the IRC electrical provisions are based on the NEC
C. Always apply the IBC instead
D. Apply whichever code is more lenient
Correct Answer: B. Apply the requirements as adopted and amended by the
jurisdiction, recognizing the IRC electrical provisions are based on the NEC
Rationale: The IRC's electrical provisions are extracted from and coordinated with
the NEC; the locally adopted and amended code governs the specific jurisdiction.
,4. A permit for residential electrical work is generally required before:
A. Any electrical installation, alteration, or repair covered by the code begins
B. Only after the work is completed
C. Only for service upgrades
D. Only for commercial tenants
Correct Answer: A. Any electrical installation, alteration, or repair covered by
the code begins
Rationale: Electrical permits are typically required prior to starting covered work so
the authority having jurisdiction can review and inspect the installation.
5. The primary purpose of a residential electrical inspection is to:
A. Verify installations comply with the adopted code to protect life and property
from electrical hazards
B. Approve the electrician's invoice
C. Determine the homeowner's insurance premium
D. Certify the contractor's business license only
Correct Answer: A. Verify installations comply with the adopted code to
protect life and property from electrical hazards
Rationale: Inspections confirm that electrical work meets code requirements
intended to prevent shock, fire, and other hazards.
6. If an inspector discovers a code violation during a residential electrical
inspection, the appropriate action is typically to:
A. Ignore minor items to save time
B. Document the violation and require correction before final approval
C. Approve the work regardless
D. Perform the repair personally
Correct Answer: B. Document the violation and require correction before final
approval
Rationale: Inspectors document violations and require correction, consistent with
the adopted code, before granting approval or a certificate of occupancy.
,7. "Authority Having Jurisdiction" (AHJ) refers to:
A. The organization or individual responsible for enforcing the code
B. The homeowner
C. The product manufacturer
D. The electrical supply store
Correct Answer: A. The organization or individual responsible for enforcing
the code
Rationale: The AHJ is the entity (often a building/electrical official) responsible for
interpreting and enforcing code requirements.
8. Listed and labeled electrical equipment means the equipment has been:
A. Evaluated by a recognized testing laboratory and found to meet applicable
safety standards
B. Simply advertised as safe by the manufacturer
C. Approved only by the installer
D. Sold at a licensed retailer
Correct Answer: A. Evaluated by a recognized testing laboratory and found to
meet applicable safety standards
Rationale: Listing and labeling by a nationally recognized testing laboratory (e.g.,
UL) indicates the product has been evaluated against applicable safety standards.
9. Rough-in electrical inspections are generally performed:
A. After walls are finished and painted
B. Before wiring is concealed by insulation, drywall, or other building finishes
C. Only after the final inspection
D. Only for service equipment
Correct Answer: B. Before wiring is concealed by insulation, drywall, or other
building finishes
Rationale: Rough-in inspections occur while wiring, boxes, and cable runs are still
visible and accessible, before they are covered by finishes.
, 10. A final electrical inspection typically verifies that:
A. The installation is complete, devices are installed and functioning, and
covers/plates are in place per code
B. Only the service panel exists
C. The rough-in inspection was never needed
D. Only that permits were paid
Correct Answer: A. The installation is complete, devices are installed and
functioning, and covers/plates are in place per code
Rationale: The final inspection confirms the completed installation, including
devices, fixtures, and covers, complies with the code and is ready for use.
11. Where a conflict exists between a manufacturer's installation instructions
and the NEC, the inspector should generally require:
A. Compliance with whichever is less restrictive
B. Compliance with both, since listed equipment must be installed per its listing
and instructions in addition to the code
C. Compliance with the manufacturer's instructions only, ignoring the code
D. Neither; installer discretion controls
Correct Answer: B. Compliance with both, since listed equipment must be
installed per its listing and instructions in addition to the code
Rationale: Listed equipment must be installed in accordance with its listing and
manufacturer's instructions, which are enforceable as part of code compliance.
12. Which of the following best describes the inspector's role regarding code
interpretation disputes?
A. The inspector has no authority to interpret the code
B. The AHJ/inspector renders interpretations, subject to appeal processes
established by the jurisdiction
C. Only the electrician may interpret the code
D. Interpretation is left entirely to the manufacturer
Correct Answer: B. The AHJ/inspector renders interpretations, subject to
appeal processes established by the jurisdiction
Rationale: The AHJ interprets and enforces the code, and jurisdictions typically
provide an appeals process for disputed interpretations.
