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NORTH CAROLINA LIMITED ELECTRICAL
CONTRACTOR LICENSING ACTUAL EXAM
PREP 2026 ALL QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES
ALREADY A GRADED WITH EXPERT
FEEDBACK |NEW AND REVISED
1. The primary purpose of the National Electrical Code (NEC) is to:
A. Reduce construction costs only
B. Replace local building codes
C. Provide minimum standards for safe electrical installations
D. Eliminate all electrical inspections
Rationale: The NEC establishes minimum safety standards designed to
protect people and property from electrical hazards.
2. A branch circuit is defined as:
A. Conductors between the utility transformer and service
equipment
B. A grounding electrode conductor only
C. Circuit conductors between the final overcurrent device and
outlets or loads
D. A feeder supplying multiple panels
Rationale: NEC defines a branch circuit as conductors between the final
overcurrent protection device and the connected loads.
3. Which device is primarily intended to protect against overloads
and short circuits?
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A. Switch
B. Receptacle
C. Circuit breaker
D. Transformer
Rationale: Circuit breakers interrupt current flow during overload or
fault conditions.
4. Grounding primarily helps to:
A. Increase system voltage
B. Improve lighting appearance
C. Reduce shock hazards and stabilize voltage
D. Eliminate all maintenance needs
Rationale: Grounding provides a path for fault current and helps
stabilize electrical systems.
5. Conductors must generally be sized according to:
A. Paint color
B. Building occupancy only
C. Ampacity and load requirements
D. Ceiling height exclusively
Rationale: Proper conductor sizing prevents overheating and ensures
safe current-carrying capacity.
6. Which conductor color is commonly used for grounded neutral
conductors?
A. Green
B. Red
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C. White or gray
D. Orange
Rationale: NEC identifies grounded conductors with white or gray
insulation.
7. A GFCI is designed primarily to protect against:
A. Overvoltage
B. Fire alarm failures
C. Ground-fault shock hazards
D. Low battery conditions
Rationale: Ground-Fault Circuit Interrupters quickly disconnect power
during ground faults to protect people.
8. Which NEC requirement applies to working space around
electrical equipment?
A. Decorative clearance only
B. No access requirements
C. Adequate clearance for safe operation and maintenance
D. Clearance applies outdoors only
Rationale: NEC requires sufficient working space for safe servicing of
equipment.
9. The ampere is a measurement of:
A. Resistance
B. Voltage
C. Current flow
D. Power factor
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Rationale: Amperes measure electrical current.
10. Electrical permits are generally required to:
A. Increase contractor advertising
B. Avoid inspections
C. Ensure installations comply with code requirements
D. Replace licensing requirements
Rationale: Permits support inspection and code compliance processes.
11. Which formula correctly expresses Ohm’s Law for voltage?
A. P = VI
B. I = P/V
C. V = IR
D. R = P²
Rationale: Ohm’s Law states voltage equals current multiplied by
resistance.
12. Bonding is intended to:
A. Increase resistance intentionally
B. Decorate electrical systems
C. Establish electrical continuity between conductive parts
D. Reduce conductor ampacity
Rationale: Bonding ensures conductive parts remain at the same
electrical potential.
NORTH CAROLINA LIMITED ELECTRICAL
CONTRACTOR LICENSING ACTUAL EXAM
PREP 2026 ALL QUESTIONS AND CORRECT
DETAILED ANSWERS WITH RATIONALES
ALREADY A GRADED WITH EXPERT
FEEDBACK |NEW AND REVISED
1. The primary purpose of the National Electrical Code (NEC) is to:
A. Reduce construction costs only
B. Replace local building codes
C. Provide minimum standards for safe electrical installations
D. Eliminate all electrical inspections
Rationale: The NEC establishes minimum safety standards designed to
protect people and property from electrical hazards.
2. A branch circuit is defined as:
A. Conductors between the utility transformer and service
equipment
B. A grounding electrode conductor only
C. Circuit conductors between the final overcurrent device and
outlets or loads
D. A feeder supplying multiple panels
Rationale: NEC defines a branch circuit as conductors between the final
overcurrent protection device and the connected loads.
3. Which device is primarily intended to protect against overloads
and short circuits?
,2|Page
A. Switch
B. Receptacle
C. Circuit breaker
D. Transformer
Rationale: Circuit breakers interrupt current flow during overload or
fault conditions.
4. Grounding primarily helps to:
A. Increase system voltage
B. Improve lighting appearance
C. Reduce shock hazards and stabilize voltage
D. Eliminate all maintenance needs
Rationale: Grounding provides a path for fault current and helps
stabilize electrical systems.
5. Conductors must generally be sized according to:
A. Paint color
B. Building occupancy only
C. Ampacity and load requirements
D. Ceiling height exclusively
Rationale: Proper conductor sizing prevents overheating and ensures
safe current-carrying capacity.
6. Which conductor color is commonly used for grounded neutral
conductors?
A. Green
B. Red
,3|Page
C. White or gray
D. Orange
Rationale: NEC identifies grounded conductors with white or gray
insulation.
7. A GFCI is designed primarily to protect against:
A. Overvoltage
B. Fire alarm failures
C. Ground-fault shock hazards
D. Low battery conditions
Rationale: Ground-Fault Circuit Interrupters quickly disconnect power
during ground faults to protect people.
8. Which NEC requirement applies to working space around
electrical equipment?
A. Decorative clearance only
B. No access requirements
C. Adequate clearance for safe operation and maintenance
D. Clearance applies outdoors only
Rationale: NEC requires sufficient working space for safe servicing of
equipment.
9. The ampere is a measurement of:
A. Resistance
B. Voltage
C. Current flow
D. Power factor
, 4|Page
Rationale: Amperes measure electrical current.
10. Electrical permits are generally required to:
A. Increase contractor advertising
B. Avoid inspections
C. Ensure installations comply with code requirements
D. Replace licensing requirements
Rationale: Permits support inspection and code compliance processes.
11. Which formula correctly expresses Ohm’s Law for voltage?
A. P = VI
B. I = P/V
C. V = IR
D. R = P²
Rationale: Ohm’s Law states voltage equals current multiplied by
resistance.
12. Bonding is intended to:
A. Increase resistance intentionally
B. Decorate electrical systems
C. Establish electrical continuity between conductive parts
D. Reduce conductor ampacity
Rationale: Bonding ensures conductive parts remain at the same
electrical potential.
