NORTH CAROLINA RESIDENTIAL SINGLE-FAMILY DWELLING ELECTRICAL CONTRACTOR LICENSING
EXAM – QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A |
INSTANT DOWNLOAD PDF.
CORE DOMAINS
- National Electrical Code (NEC) Requirements
- North Carolina Electrical Code Amendments
- Load Calculations and Sizing
- Grounding and Bonding
- Wiring Methods and Materials
- Equipment for General Use
- Special Occupancies and Conditions
- Administrative Requirements and Licensing Law
INTRODUCTION
This comprehensive practice assessment is designed to mirror the rigors of the North Carolina Residential Single-
Family Dwelling Electrical Contractor Licensing Exam. Its primary purpose is to evaluate a candidate’s mastery of
the technical, regulatory, and safety standards essential for performing electrical installations in residential
settings. The assessment evaluates knowledge of the National Electrical Code, state-specific amendments, and
professional ethics. Through a blend of multiple-choice questions and complex real-world scenarios, the exam
challenges the candidate's ability to apply theoretical concepts to practical decision-making. This ensures that
licensed contractors possess the critical thinking skills necessary to maintain safety and compliance in the field.
SECTION ONE
, 1. What is the maximum distance a receptacle can be located from the edge of a bathroom basin in a single-
family dwelling?
A. 12 inches
B. 24 inches
C. 36 inches
D. 48 inches
🟢 Correct answer: C. 36 inches
🔴 RATIONALE: According to NEC 210.52(D), at least one receptacle outlet must be installed within 36 inches of
the outside edge of each basin in bathrooms.
2. In a residential kitchen, which of the following is true regarding small-appliance branch circuits?
A. They can supply lighting in the kitchen.
B. They must be rated at 15 amps.
C. They can supply the refrigerator.
D. They can supply outdoor receptacles.
🟢 Correct answer: C. They can supply the refrigerator.
🔴 RATIONALE: NEC 210.52(B)(1) Exception No. 2 allows a refrigerator to be supplied from an individual branch
circuit of 15 amps or more, or from the small-appliance branch circuits.
3. Under the North Carolina Administrative Code, what is the minimum duration of experience required for a
residential electrical license?
A. 1 year
B. 2 years
C. 4 years
,D. 5 years
🟢 Correct answer: B. 2 years
🔴 RATIONALE: North Carolina licensing requirements for the SP-SFD (Special Residential) classification
typically require at least 2 years of primary experience.
4. What is the minimum burial depth for Rigid Metal Conduit (RMC) under a residential driveway?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
🟢 Correct answer: C. 18 inches
🔴 RATIONALE: Table 300.5 of the NEC specifies that for all locations not specified (including residential
driveways), RMC must be buried at a minimum of 18 inches.
5. A 120-volt, single-phase, 15-amp branch circuit is used for a bedroom. Which protection is mandated by
the NEC?
A. GFCI only
B. AFCI only
C. Both GFCI and AFCI
D. No special protection required
🟢 Correct answer: B. AFCI only
🔴 RATIONALE: NEC 210.12(A) requires all 120-volt, single-phase, 15- and 20-ampere branch circuits supplying
outlets in family rooms, dining rooms, living rooms, bedrooms, and similar areas to be AFCI protected.
6. Which size copper equipment grounding conductor is required for a 60-ampere overcurrent device?
, A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
🟢 Correct answer: C. 10 AWG
🔴 RATIONALE: Per Table 250.122, a 60-ampere overcurrent device requires a minimum 10 AWG copper
equipment grounding conductor.
7. In a residential hallway of 12 feet in length, what is the minimum number of receptacles required?
A. 0
B. 1
C. 2
D. 3
🟢 Correct answer: B. 1
🔴 RATIONALE: NEC 210.52(H) states that hallways of 10 feet or more in length shall have at least one
receptacle outlet.
8. What is the maximum number of disconnects allowed for a main service at a single-family dwelling?
A. 2
B. 4
C. 6
D. 8
🟢 Correct answer: C. 6
🔴 RATIONALE: NEC 230.71(A) permits a maximum of six disconnects for each service grouped in any one
location.
EXAM – QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A |
INSTANT DOWNLOAD PDF.
CORE DOMAINS
- National Electrical Code (NEC) Requirements
- North Carolina Electrical Code Amendments
- Load Calculations and Sizing
- Grounding and Bonding
- Wiring Methods and Materials
- Equipment for General Use
- Special Occupancies and Conditions
- Administrative Requirements and Licensing Law
INTRODUCTION
This comprehensive practice assessment is designed to mirror the rigors of the North Carolina Residential Single-
Family Dwelling Electrical Contractor Licensing Exam. Its primary purpose is to evaluate a candidate’s mastery of
the technical, regulatory, and safety standards essential for performing electrical installations in residential
settings. The assessment evaluates knowledge of the National Electrical Code, state-specific amendments, and
professional ethics. Through a blend of multiple-choice questions and complex real-world scenarios, the exam
challenges the candidate's ability to apply theoretical concepts to practical decision-making. This ensures that
licensed contractors possess the critical thinking skills necessary to maintain safety and compliance in the field.
SECTION ONE
, 1. What is the maximum distance a receptacle can be located from the edge of a bathroom basin in a single-
family dwelling?
A. 12 inches
B. 24 inches
C. 36 inches
D. 48 inches
🟢 Correct answer: C. 36 inches
🔴 RATIONALE: According to NEC 210.52(D), at least one receptacle outlet must be installed within 36 inches of
the outside edge of each basin in bathrooms.
2. In a residential kitchen, which of the following is true regarding small-appliance branch circuits?
A. They can supply lighting in the kitchen.
B. They must be rated at 15 amps.
C. They can supply the refrigerator.
D. They can supply outdoor receptacles.
🟢 Correct answer: C. They can supply the refrigerator.
🔴 RATIONALE: NEC 210.52(B)(1) Exception No. 2 allows a refrigerator to be supplied from an individual branch
circuit of 15 amps or more, or from the small-appliance branch circuits.
3. Under the North Carolina Administrative Code, what is the minimum duration of experience required for a
residential electrical license?
A. 1 year
B. 2 years
C. 4 years
,D. 5 years
🟢 Correct answer: B. 2 years
🔴 RATIONALE: North Carolina licensing requirements for the SP-SFD (Special Residential) classification
typically require at least 2 years of primary experience.
4. What is the minimum burial depth for Rigid Metal Conduit (RMC) under a residential driveway?
A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches
🟢 Correct answer: C. 18 inches
🔴 RATIONALE: Table 300.5 of the NEC specifies that for all locations not specified (including residential
driveways), RMC must be buried at a minimum of 18 inches.
5. A 120-volt, single-phase, 15-amp branch circuit is used for a bedroom. Which protection is mandated by
the NEC?
A. GFCI only
B. AFCI only
C. Both GFCI and AFCI
D. No special protection required
🟢 Correct answer: B. AFCI only
🔴 RATIONALE: NEC 210.12(A) requires all 120-volt, single-phase, 15- and 20-ampere branch circuits supplying
outlets in family rooms, dining rooms, living rooms, bedrooms, and similar areas to be AFCI protected.
6. Which size copper equipment grounding conductor is required for a 60-ampere overcurrent device?
, A. 14 AWG
B. 12 AWG
C. 10 AWG
D. 8 AWG
🟢 Correct answer: C. 10 AWG
🔴 RATIONALE: Per Table 250.122, a 60-ampere overcurrent device requires a minimum 10 AWG copper
equipment grounding conductor.
7. In a residential hallway of 12 feet in length, what is the minimum number of receptacles required?
A. 0
B. 1
C. 2
D. 3
🟢 Correct answer: B. 1
🔴 RATIONALE: NEC 210.52(H) states that hallways of 10 feet or more in length shall have at least one
receptacle outlet.
8. What is the maximum number of disconnects allowed for a main service at a single-family dwelling?
A. 2
B. 4
C. 6
D. 8
🟢 Correct answer: C. 6
🔴 RATIONALE: NEC 230.71(A) permits a maximum of six disconnects for each service grouped in any one
location.
