JOURNEYMAN ELECTRICIAN TEST QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) Q&A
2026/2027 |INSTANT DOWNLOAD PDF
1. What is the unit used to measure electrical resistance?
A. Volt
B. Ampere
C. Ohm
D. Watt
Correct Answer: C. Ohm
Rationale: Resistance is measured in ohms (Ω) and represents
opposition to current flow.
2. According to Ohm’s Law, voltage equals:
A. Current × Resistance
B. Power ÷ Current
C. Resistance ÷ Current
D. Current + Resistance
Correct Answer: A. Current × Resistance
Rationale: Ohm’s Law states V = I × R, where voltage equals
current multiplied by resistance.
,3. The primary purpose of a circuit breaker is to:
A. Increase voltage
B. Protect conductors from overcurrent
C. Reduce resistance
D. Store electricity
Correct Answer: B. Protect conductors from overcurrent
Rationale: Circuit breakers interrupt excessive current to
prevent damage and fire hazards.
4. The National Electrical Code (NEC) is primarily used to:
A. Design appliances
B. Establish minimum electrical safety standards
C. Manufacture wires
D. Train engineers
Correct Answer: B. Establish minimum electrical safety
standards
Rationale: The NEC provides requirements for safe electrical
installations.
5. A conductor is a material that:
A. Blocks electricity
B. Allows current flow easily
,C. Produces heat only
D. Prevents grounding
Correct Answer: B. Allows current flow easily
Rationale: Conductors such as copper and aluminum allow
electrical current to pass.
6. What color insulation is typically used for equipment
grounding conductors?
A. White
B. Green or bare copper
C. Black
D. Red
Correct Answer: B. Green or bare copper
Rationale: NEC identifies grounding conductors with green
insulation or no insulation.
7. A 120-volt circuit supplying 10 amps uses approximately
how much power?
A. 120 watts
B. 600 watts
C. 1,200 watts
D. 2,400 watts
Correct Answer: C. 1,200 watts
, Rationale: Power = Voltage × Current. 120V × 10A = 1,200
watts.
8. What device measures electrical current?
A. Voltmeter
B. Ammeter
C. Ohmmeter
D. Wattmeter
Correct Answer: B. Ammeter
Rationale: An ammeter measures current in amperes.
9. The neutral conductor in a typical AC system carries:
A. Unbalanced current back to the source
B. Only fault current
C. No current
D. High voltage only
Correct Answer: A. Unbalanced current back to the source
Rationale: The neutral provides a return path for normal
current in many systems.
10. What is the purpose of grounding an electrical system?
A. Increase voltage
B. Provide a safe path for fault current
CORRECT ANSWERS (VERIFIED ANSWERS) Q&A
2026/2027 |INSTANT DOWNLOAD PDF
1. What is the unit used to measure electrical resistance?
A. Volt
B. Ampere
C. Ohm
D. Watt
Correct Answer: C. Ohm
Rationale: Resistance is measured in ohms (Ω) and represents
opposition to current flow.
2. According to Ohm’s Law, voltage equals:
A. Current × Resistance
B. Power ÷ Current
C. Resistance ÷ Current
D. Current + Resistance
Correct Answer: A. Current × Resistance
Rationale: Ohm’s Law states V = I × R, where voltage equals
current multiplied by resistance.
,3. The primary purpose of a circuit breaker is to:
A. Increase voltage
B. Protect conductors from overcurrent
C. Reduce resistance
D. Store electricity
Correct Answer: B. Protect conductors from overcurrent
Rationale: Circuit breakers interrupt excessive current to
prevent damage and fire hazards.
4. The National Electrical Code (NEC) is primarily used to:
A. Design appliances
B. Establish minimum electrical safety standards
C. Manufacture wires
D. Train engineers
Correct Answer: B. Establish minimum electrical safety
standards
Rationale: The NEC provides requirements for safe electrical
installations.
5. A conductor is a material that:
A. Blocks electricity
B. Allows current flow easily
,C. Produces heat only
D. Prevents grounding
Correct Answer: B. Allows current flow easily
Rationale: Conductors such as copper and aluminum allow
electrical current to pass.
6. What color insulation is typically used for equipment
grounding conductors?
A. White
B. Green or bare copper
C. Black
D. Red
Correct Answer: B. Green or bare copper
Rationale: NEC identifies grounding conductors with green
insulation or no insulation.
7. A 120-volt circuit supplying 10 amps uses approximately
how much power?
A. 120 watts
B. 600 watts
C. 1,200 watts
D. 2,400 watts
Correct Answer: C. 1,200 watts
, Rationale: Power = Voltage × Current. 120V × 10A = 1,200
watts.
8. What device measures electrical current?
A. Voltmeter
B. Ammeter
C. Ohmmeter
D. Wattmeter
Correct Answer: B. Ammeter
Rationale: An ammeter measures current in amperes.
9. The neutral conductor in a typical AC system carries:
A. Unbalanced current back to the source
B. Only fault current
C. No current
D. High voltage only
Correct Answer: A. Unbalanced current back to the source
Rationale: The neutral provides a return path for normal
current in many systems.
10. What is the purpose of grounding an electrical system?
A. Increase voltage
B. Provide a safe path for fault current
