ALABAMA ELECTRICAL CONTRACTOR
LICENSING TEST EXAM 100 QUESTIONS WITH
ANSWERS AND RATIONALES LATEST 2025-2026
UPDATE
Section A: Electrical Theory & Calculations (1–20)
1. Ohm’s Law states that current equals:
A. V × R
B. V ÷ R
C. R ÷ V
D. V + R
Answer: B
Rationale: Ohm’s Law: I = V / R.
2. A 120V circuit with a resistance of 30 ohms draws how much
current?
A. 2A
B. 3A
C. 4A
D. 6A
Answer: C
Rationale: I = 120 ÷ 30 = 4A.
3. Power is calculated by which formula?
A. P = I ÷ V
B. P = V × I
C. P = R ÷ I
D. P = V ÷ R
Answer: B
Rationale: Electrical power equals voltage times current.
,4. A 15A, 120V circuit supplies how many watts?
A. 120W
B. 900W
C. 1,800W
D. 2,400W
Answer: C
Rationale: P = 120 × 15 = 1,800W.
5. Increasing resistance in a circuit will:
A. Increase current
B. Decrease voltage
C. Decrease current
D. Increase power
Answer: C
Rationale: Current is inversely proportional to resistance.
6. AC voltage changes direction how often?
A. Once per second
B. 30 times per second
C. 60 cycles per second
D. Never
Answer: C
Rationale: Standard U.S. frequency is 60 Hz.
7. A short circuit is characterized by:
A. High resistance
B. No voltage
C. Very low resistance
D. Balanced load
Answer: C
Rationale: Short circuits allow excessive current flow.
8. Apparent power is measured in:
A. Watts
B. Volt-amps
C. Ohms
, D. Joules
Answer: B
Rationale: Apparent power = VA.
9. True power differs from apparent power because of:
A. Voltage
B. Resistance
C. Power factor
D. Frequency
Answer: C
Rationale: Power factor accounts for reactive components.
10. A power factor of 1 means:
A. No load
B. All power is usable
C. Reactive load only
D. Low efficiency
Answer: B
Rationale: PF = 1 is ideal efficiency.
11. Parallel circuits have:
A. Same current
B. Same resistance
C. Same voltage
D. No grounding
Answer: C
Rationale: Voltage is equal across parallel branches.
12. Series circuits have:
A. Same voltage
B. Same current
C. Independent loads
D. Multiple paths
Answer: B
Rationale: Current remains constant in series.
LICENSING TEST EXAM 100 QUESTIONS WITH
ANSWERS AND RATIONALES LATEST 2025-2026
UPDATE
Section A: Electrical Theory & Calculations (1–20)
1. Ohm’s Law states that current equals:
A. V × R
B. V ÷ R
C. R ÷ V
D. V + R
Answer: B
Rationale: Ohm’s Law: I = V / R.
2. A 120V circuit with a resistance of 30 ohms draws how much
current?
A. 2A
B. 3A
C. 4A
D. 6A
Answer: C
Rationale: I = 120 ÷ 30 = 4A.
3. Power is calculated by which formula?
A. P = I ÷ V
B. P = V × I
C. P = R ÷ I
D. P = V ÷ R
Answer: B
Rationale: Electrical power equals voltage times current.
,4. A 15A, 120V circuit supplies how many watts?
A. 120W
B. 900W
C. 1,800W
D. 2,400W
Answer: C
Rationale: P = 120 × 15 = 1,800W.
5. Increasing resistance in a circuit will:
A. Increase current
B. Decrease voltage
C. Decrease current
D. Increase power
Answer: C
Rationale: Current is inversely proportional to resistance.
6. AC voltage changes direction how often?
A. Once per second
B. 30 times per second
C. 60 cycles per second
D. Never
Answer: C
Rationale: Standard U.S. frequency is 60 Hz.
7. A short circuit is characterized by:
A. High resistance
B. No voltage
C. Very low resistance
D. Balanced load
Answer: C
Rationale: Short circuits allow excessive current flow.
8. Apparent power is measured in:
A. Watts
B. Volt-amps
C. Ohms
, D. Joules
Answer: B
Rationale: Apparent power = VA.
9. True power differs from apparent power because of:
A. Voltage
B. Resistance
C. Power factor
D. Frequency
Answer: C
Rationale: Power factor accounts for reactive components.
10. A power factor of 1 means:
A. No load
B. All power is usable
C. Reactive load only
D. Low efficiency
Answer: B
Rationale: PF = 1 is ideal efficiency.
11. Parallel circuits have:
A. Same current
B. Same resistance
C. Same voltage
D. No grounding
Answer: C
Rationale: Voltage is equal across parallel branches.
12. Series circuits have:
A. Same voltage
B. Same current
C. Independent loads
D. Multiple paths
Answer: B
Rationale: Current remains constant in series.
