E1-2012 E1-Residential Electrical Inspector
Exam
Question 1. What is the primary purpose of the National Electrical Code
(NEC)?
A) To regulate building permits
B) To establish safety standards for electrical installations
C) To control electrical pricing
D) To set standards for plumbing systems
Answer: B) To establish safety standards for electrical installations
Explanation: The NEC provides guidelines to ensure electrical safety in
residential, commercial, and industrial settings, reducing hazards and
preventing electrical fires.
Question 2. Which of the following is a major revision commonly
included in NEC updates?
A) Reduction of grounding requirements
B) Introduction of arc fault circuit interrupters (AFCIs)
C) Elimination of GFCI protection
D) Removal of load calculation requirements
Answer: B) Introduction of arc fault circuit interrupters (AFCIs)
Explanation: NEC updates often include new safety devices like AFCIs
to prevent fires caused by arc faults in wiring.
,E1-2012 E1-Residential Electrical Inspector
Exam
Question 3. What is the primary reason for local amendments to the
NEC?
A) To promote industry competition
B) To address regional safety concerns and conditions
C) To simplify the code nationally
D) To reduce inspection requirements
Answer: B) To address regional safety concerns and conditions
Explanation: Local amendments adapt the NEC to specific regional
conditions, such as climate or existing infrastructure, ensuring safety and
practicality.
Question 4. Which PPE is most critical during an electrical inspection?
A) Steel-toed boots
B) Safety glasses and insulated gloves
C) Hard hat only
D) Ear protection
Answer: B) Safety glasses and insulated gloves
Explanation: Safety glasses protect eyes from sparks or debris, and
insulated gloves prevent electrical shocks during inspection activities.
,E1-2012 E1-Residential Electrical Inspector
Exam
Question 5. Which safety procedure involves ensuring that electrical
equipment cannot be energized during maintenance or inspection?
A) Lockout/tagout
B) Ground fault protection
C) Circuit breaker testing
D) Grounding continuity testing
Answer: A) Lockout/tagout
Explanation: Lockout/tagout procedures physically disable electrical
equipment to prevent accidental energization and protect personnel.
Question 6. Which step is crucial in performing a thorough electrical
inspection?
A) Only checking visual aspects
B) Testing all circuits with a multimeter
C) Verifying proper grounding and circuit labeling
D) Ignoring existing code violations
Answer: C) Verifying proper grounding and circuit labeling
Explanation: Proper grounding and accurate labeling are essential to
ensure safety and facilitate future inspections.
Question 7. Which tool is commonly used to test GFCI devices?
, E1-2012 E1-Residential Electrical Inspector
Exam
A) Multimeter
B) GFCI tester
C) Clamp meter
D) Insulation resistance tester
Answer: B) GFCI tester
Explanation: A GFCI tester verifies proper operation by simulating
ground faults and ensuring the device trips as required.
Question 8. What is the primary function of a circuit breaker?
A) To increase electrical load
B) To protect circuits from overcurrent
C) To convert AC to DC
D) To reduce voltage
Answer: B) To protect circuits from overcurrent
Explanation: Circuit breakers automatically trip to disconnect power
when overcurrent or short circuits occur, preventing damage.
Question 9. Which of the following best describes a branch circuit?
A) A circuit that supplies multiple outlets or fixtures from a single point
B) A main service entrance cable
Exam
Question 1. What is the primary purpose of the National Electrical Code
(NEC)?
A) To regulate building permits
B) To establish safety standards for electrical installations
C) To control electrical pricing
D) To set standards for plumbing systems
Answer: B) To establish safety standards for electrical installations
Explanation: The NEC provides guidelines to ensure electrical safety in
residential, commercial, and industrial settings, reducing hazards and
preventing electrical fires.
Question 2. Which of the following is a major revision commonly
included in NEC updates?
A) Reduction of grounding requirements
B) Introduction of arc fault circuit interrupters (AFCIs)
C) Elimination of GFCI protection
D) Removal of load calculation requirements
Answer: B) Introduction of arc fault circuit interrupters (AFCIs)
Explanation: NEC updates often include new safety devices like AFCIs
to prevent fires caused by arc faults in wiring.
,E1-2012 E1-Residential Electrical Inspector
Exam
Question 3. What is the primary reason for local amendments to the
NEC?
A) To promote industry competition
B) To address regional safety concerns and conditions
C) To simplify the code nationally
D) To reduce inspection requirements
Answer: B) To address regional safety concerns and conditions
Explanation: Local amendments adapt the NEC to specific regional
conditions, such as climate or existing infrastructure, ensuring safety and
practicality.
Question 4. Which PPE is most critical during an electrical inspection?
A) Steel-toed boots
B) Safety glasses and insulated gloves
C) Hard hat only
D) Ear protection
Answer: B) Safety glasses and insulated gloves
Explanation: Safety glasses protect eyes from sparks or debris, and
insulated gloves prevent electrical shocks during inspection activities.
,E1-2012 E1-Residential Electrical Inspector
Exam
Question 5. Which safety procedure involves ensuring that electrical
equipment cannot be energized during maintenance or inspection?
A) Lockout/tagout
B) Ground fault protection
C) Circuit breaker testing
D) Grounding continuity testing
Answer: A) Lockout/tagout
Explanation: Lockout/tagout procedures physically disable electrical
equipment to prevent accidental energization and protect personnel.
Question 6. Which step is crucial in performing a thorough electrical
inspection?
A) Only checking visual aspects
B) Testing all circuits with a multimeter
C) Verifying proper grounding and circuit labeling
D) Ignoring existing code violations
Answer: C) Verifying proper grounding and circuit labeling
Explanation: Proper grounding and accurate labeling are essential to
ensure safety and facilitate future inspections.
Question 7. Which tool is commonly used to test GFCI devices?
, E1-2012 E1-Residential Electrical Inspector
Exam
A) Multimeter
B) GFCI tester
C) Clamp meter
D) Insulation resistance tester
Answer: B) GFCI tester
Explanation: A GFCI tester verifies proper operation by simulating
ground faults and ensuring the device trips as required.
Question 8. What is the primary function of a circuit breaker?
A) To increase electrical load
B) To protect circuits from overcurrent
C) To convert AC to DC
D) To reduce voltage
Answer: B) To protect circuits from overcurrent
Explanation: Circuit breakers automatically trip to disconnect power
when overcurrent or short circuits occur, preventing damage.
Question 9. Which of the following best describes a branch circuit?
A) A circuit that supplies multiple outlets or fixtures from a single point
B) A main service entrance cable
