ARIZONA ELECTRICIAN LICENSING EXAM
QUESTIONS WITH CORRECT ANSWERS AND
RATIONALES LATEST 2026 UPDATE
1. Ohm’s Law states:
A. V = I/R
B. V = I × R
C. I = V × R
D. P = V × I
Answer: B
Rationale: Ohm’s Law defines voltage as current multiplied by
resistance.
2. The unit of electrical resistance is:
A. Volt
B. Ampere
C. Ohm
D. Watt
Answer: C
Rationale: Resistance is measured in ohms (Ω).
3. A standard residential outlet in the U.S. is typically:
A. 120V
B. 240V
,C. 277V
D. 480V
Answer: A
Rationale: Standard receptacles are 120 volts.
4. The purpose of a circuit breaker is to:
A. Increase voltage
B. Store electricity
C. Protect against overcurrent
D. Reduce resistance
Answer: C
Rationale: Breakers trip during overload or short circuit conditions.
5. The color of a grounding wire is usually:
A. Red
B. White
C. Green or bare copper
D. Black
Answer: C
Rationale: Grounding conductors are green or bare.
6. Current is measured in:
A. Watts
B. Volts
, C. Ohms
D. Amperes
Answer: D
Rationale: Current is measured in amperes (amps).
7. Power in an electrical circuit is calculated as:
A. V/R
B. I/R
C. V × I
D. I²/R
Answer: C
Rationale: Power equals voltage times current.
8. A short circuit is:
A. High resistance path
B. Low resistance unintended path
C. Open circuit
D. Normal load
Answer: B
Rationale: A short circuit provides a very low-resistance path.
9. NEC stands for:
A. National Electrical Code
B. National Energy Council
QUESTIONS WITH CORRECT ANSWERS AND
RATIONALES LATEST 2026 UPDATE
1. Ohm’s Law states:
A. V = I/R
B. V = I × R
C. I = V × R
D. P = V × I
Answer: B
Rationale: Ohm’s Law defines voltage as current multiplied by
resistance.
2. The unit of electrical resistance is:
A. Volt
B. Ampere
C. Ohm
D. Watt
Answer: C
Rationale: Resistance is measured in ohms (Ω).
3. A standard residential outlet in the U.S. is typically:
A. 120V
B. 240V
,C. 277V
D. 480V
Answer: A
Rationale: Standard receptacles are 120 volts.
4. The purpose of a circuit breaker is to:
A. Increase voltage
B. Store electricity
C. Protect against overcurrent
D. Reduce resistance
Answer: C
Rationale: Breakers trip during overload or short circuit conditions.
5. The color of a grounding wire is usually:
A. Red
B. White
C. Green or bare copper
D. Black
Answer: C
Rationale: Grounding conductors are green or bare.
6. Current is measured in:
A. Watts
B. Volts
, C. Ohms
D. Amperes
Answer: D
Rationale: Current is measured in amperes (amps).
7. Power in an electrical circuit is calculated as:
A. V/R
B. I/R
C. V × I
D. I²/R
Answer: C
Rationale: Power equals voltage times current.
8. A short circuit is:
A. High resistance path
B. Low resistance unintended path
C. Open circuit
D. Normal load
Answer: B
Rationale: A short circuit provides a very low-resistance path.
9. NEC stands for:
A. National Electrical Code
B. National Energy Council
