IAEI RESIDENTIAL ELECTRICAL INSPECTOR EXAM
PRACTICE TEST (NEW VERSION) | UPDATED
QUESTIONS & ANSWERS | NEC CODE INSPECTION
STUDY GUIDE | LATEST UPDATE THIS YEAR
Core Domains
1. General Requirements & NEC Basics (AHJ, Scope, Enforcement, Definitions)
2. Working Space, Clearances, and Accessibility (NEC 110.26)
3. Services, Service Equipment, and Disconnecting Means (NEC 230)
4. Branch Circuits, Feeders, and Receptacle Requirements (NEC 210, 215, 220)
5. Wiring Methods and Materials (NM Cable, Conduit, Boxes, Fill) (NEC 300, 314,
334, 358)
6. Grounding and Bonding (NEC 250)
7. Overcurrent Protection and Panelboards (NEC 240)
8. GFCI and AFCI Protection (NEC 210.8, 210.12)
9. Special Occupancies (Bathrooms, Kitchens, Garages, Basements, Laundry)
10. Load Calculations (Standard & Optional Methods) (NEC 220)
11. Inspection Procedures, Safety, and Professional Practice
Introduction
This comprehensive practice examination is designed to simulate the IAEI
Residential Electrical Inspector (CEI-R) certification exam. The CEI-R exam is a
four-hour, open-book, multiple-choice exam based on the latest edition of the
National Electrical Code (NEC) and is administered through the ICC/IAEI Joint
Certification Program. The assessment covers all core domains including general
requirements, working space and clearances, services, branch circuits, wiring
methods, grounding and bonding, overcurrent protection, GFCI and AFCI
requirements, special occupancies, and load calculations. You will encounter
original exam-style multiple-choice questions based on residential electrical
inspection principles and the NEC. Each question includes four answer choices (A–
,D) with the correct answer and a detailed rationale citing the specific NEC or IRC
reference. This study guide is ideal for aspiring residential electrical inspectors,
code enforcement officials, electricians transitioning into inspection roles, and
anyone preparing for IAEI residential electrical inspector certification.
QUESTIONS 1–200
SECTION 1: GENERAL REQUIREMENTS & NEC BASICS (Questions 1–25)
1. Who has the authority to interpret and enforce the National Electrical Code
(NEC) locally?
A. The NEC Code Making Panel
B. The electrical contractor
C. The Authority Having Jurisdiction (AHJ)
D. The utility company
C. The Authority Having Jurisdiction (AHJ)
RATIONALE: The AHJ, typically the local building department or electrical
inspector, has the legal authority to interpret and enforce the NEC as adopted by
the jurisdiction.
2. What is the primary purpose of the National Electrical Code (NEC)?
A. To provide design standards for electrical engineers
B. To establish minimum safety standards for electrical installations
C. To recommend specific brands of electrical equipment
D. To provide guidelines for equipment pricing
B. To establish minimum safety standards for electrical installations
, RATIONALE: The primary purpose of the NEC is the practical safeguarding of
persons and property from hazards arising from the use of electricity.
3. Which of the following best reflects the IAEI Code of Ethics for electrical
inspectors?
A. Inspectors should prioritize speed over accuracy to clear more inspections
B. Inspectors must perform their duties with honesty, integrity, and impartiality
C. Inspectors should provide design assistance to contractors
D. Inspectors may accept gifts from contractors to expedite inspections
B. Inspectors must perform their duties with honesty, integrity, and
impartiality
RATIONALE: The IAEI Code of Ethics requires electrical inspectors to perform
their duties with honesty, integrity, impartiality, and professionalism.
4. What authority does the Authority Having Jurisdiction (AHJ) possess
regarding a residential electrical inspection?
A. The AHJ can only make recommendations, not enforce code
B. The AHJ has the authority to interpret and enforce the NEC as adopted locally
C. The AHJ must follow the contractor's interpretation of the code
D. The AHJ has no authority over existing installations
B. The AHJ has the authority to interpret and enforce the NEC as adopted
locally
RATIONALE: The AHJ has the legal authority to interpret and enforce the NEC
as adopted by the jurisdiction and may also enforce other applicable codes and
standards.
5. Which NEC article covers the scope and purpose of the Code?
, A. Article 90
B. Article 100
C. Article 110
D. Article 200
A. Article 90
RATIONALE: NEC Article 90 covers the scope and purpose of the National
Electrical Code, establishing its authority and limitations.
6. Which NEC article establishes the inspector's right of entry to a residence?
A. Article 90
B. Article 110
C. Article 100
D. Article 410
A. Article 90
RATIONALE: NEC Article 90 establishes the authority for enforcement,
including the inspector's right of entry for inspection purposes.
7. Which code is the primary electrical code used in residential inspection?
A. NFPA 70 (NEC)
B. International Building Code (IBC)
C. International Fire Code (IFC)
D. NFPA 101 (Life Safety Code)
A. NFPA 70 (NEC)
RATIONALE: The National Electrical Code (NFPA 70) is the primary electrical
code used in both residential and commercial inspections.
PRACTICE TEST (NEW VERSION) | UPDATED
QUESTIONS & ANSWERS | NEC CODE INSPECTION
STUDY GUIDE | LATEST UPDATE THIS YEAR
Core Domains
1. General Requirements & NEC Basics (AHJ, Scope, Enforcement, Definitions)
2. Working Space, Clearances, and Accessibility (NEC 110.26)
3. Services, Service Equipment, and Disconnecting Means (NEC 230)
4. Branch Circuits, Feeders, and Receptacle Requirements (NEC 210, 215, 220)
5. Wiring Methods and Materials (NM Cable, Conduit, Boxes, Fill) (NEC 300, 314,
334, 358)
6. Grounding and Bonding (NEC 250)
7. Overcurrent Protection and Panelboards (NEC 240)
8. GFCI and AFCI Protection (NEC 210.8, 210.12)
9. Special Occupancies (Bathrooms, Kitchens, Garages, Basements, Laundry)
10. Load Calculations (Standard & Optional Methods) (NEC 220)
11. Inspection Procedures, Safety, and Professional Practice
Introduction
This comprehensive practice examination is designed to simulate the IAEI
Residential Electrical Inspector (CEI-R) certification exam. The CEI-R exam is a
four-hour, open-book, multiple-choice exam based on the latest edition of the
National Electrical Code (NEC) and is administered through the ICC/IAEI Joint
Certification Program. The assessment covers all core domains including general
requirements, working space and clearances, services, branch circuits, wiring
methods, grounding and bonding, overcurrent protection, GFCI and AFCI
requirements, special occupancies, and load calculations. You will encounter
original exam-style multiple-choice questions based on residential electrical
inspection principles and the NEC. Each question includes four answer choices (A–
,D) with the correct answer and a detailed rationale citing the specific NEC or IRC
reference. This study guide is ideal for aspiring residential electrical inspectors,
code enforcement officials, electricians transitioning into inspection roles, and
anyone preparing for IAEI residential electrical inspector certification.
QUESTIONS 1–200
SECTION 1: GENERAL REQUIREMENTS & NEC BASICS (Questions 1–25)
1. Who has the authority to interpret and enforce the National Electrical Code
(NEC) locally?
A. The NEC Code Making Panel
B. The electrical contractor
C. The Authority Having Jurisdiction (AHJ)
D. The utility company
C. The Authority Having Jurisdiction (AHJ)
RATIONALE: The AHJ, typically the local building department or electrical
inspector, has the legal authority to interpret and enforce the NEC as adopted by
the jurisdiction.
2. What is the primary purpose of the National Electrical Code (NEC)?
A. To provide design standards for electrical engineers
B. To establish minimum safety standards for electrical installations
C. To recommend specific brands of electrical equipment
D. To provide guidelines for equipment pricing
B. To establish minimum safety standards for electrical installations
, RATIONALE: The primary purpose of the NEC is the practical safeguarding of
persons and property from hazards arising from the use of electricity.
3. Which of the following best reflects the IAEI Code of Ethics for electrical
inspectors?
A. Inspectors should prioritize speed over accuracy to clear more inspections
B. Inspectors must perform their duties with honesty, integrity, and impartiality
C. Inspectors should provide design assistance to contractors
D. Inspectors may accept gifts from contractors to expedite inspections
B. Inspectors must perform their duties with honesty, integrity, and
impartiality
RATIONALE: The IAEI Code of Ethics requires electrical inspectors to perform
their duties with honesty, integrity, impartiality, and professionalism.
4. What authority does the Authority Having Jurisdiction (AHJ) possess
regarding a residential electrical inspection?
A. The AHJ can only make recommendations, not enforce code
B. The AHJ has the authority to interpret and enforce the NEC as adopted locally
C. The AHJ must follow the contractor's interpretation of the code
D. The AHJ has no authority over existing installations
B. The AHJ has the authority to interpret and enforce the NEC as adopted
locally
RATIONALE: The AHJ has the legal authority to interpret and enforce the NEC
as adopted by the jurisdiction and may also enforce other applicable codes and
standards.
5. Which NEC article covers the scope and purpose of the Code?
, A. Article 90
B. Article 100
C. Article 110
D. Article 200
A. Article 90
RATIONALE: NEC Article 90 covers the scope and purpose of the National
Electrical Code, establishing its authority and limitations.
6. Which NEC article establishes the inspector's right of entry to a residence?
A. Article 90
B. Article 110
C. Article 100
D. Article 410
A. Article 90
RATIONALE: NEC Article 90 establishes the authority for enforcement,
including the inspector's right of entry for inspection purposes.
7. Which code is the primary electrical code used in residential inspection?
A. NFPA 70 (NEC)
B. International Building Code (IBC)
C. International Fire Code (IFC)
D. NFPA 101 (Life Safety Code)
A. NFPA 70 (NEC)
RATIONALE: The National Electrical Code (NFPA 70) is the primary electrical
code used in both residential and commercial inspections.
