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Georgia Electrical Engineer Examination
Advanced Practice Exam 2026 | 100
Questions & Answers with Detailed
Rationales | Complete Exam Prep &
Study Guide
Q1. A balanced three-phase, 480-V system supplies a balanced load of 75 kW at
0.80 power factor lagging. What is the approximate line current?
A. 90.2 A
B. 112.7 A
C. 130.1 A
D. 156.3 A
Answer: 112.7 A
Rationale: For a balanced three-phase system, P = √3 V_L I_L PF. Therefore I =
75,000/(√3 × 480 × 0.80) ≈ 112.7 A.
Q2. A 13.8-kV transmission line has a series impedance of j6 Ω per phase. If the
sending-end current is 400 A, what is the magnitude of the reactive voltage drop
per phase?
A. 1.2 kV
B. 2.4 kV
C. 3.6 kV
D. 4.8 kV
,Answer: 2.4 kV
Rationale: The magnitude of the voltage drop is I|X| = 400 × 6 = 2,400 V per
phase.
Q3. A synchronous generator operates at 0.85 power factor lagging while
delivering 20 MW. Approximately how much reactive power is being supplied?
A. 10.5 MVAr
B. 12.4 MVAr
C. 14.0 MVAr
D. 16.8 MVAr
Answer: 12.4 MVAr
Rationale: Q = P tan(cos⁻¹ 0.85). The power-factor angle is approximately 31.79°,
giving Q ≈ 20 tan(31.79°) ≈ 12.4 MVAr.
Q4. Which transformer connection provides a neutral point on the secondary
while permitting third-harmonic currents to circulate within the delta winding?
A. Delta-delta
B. Wye-wye without neutral
C. Delta-wye
D. Open-delta
Answer: Delta-wye
Rationale: A wye secondary provides a neutral point, while the delta-connected
side provides a closed path for triplen harmonic currents.
Q5. A 60-Hz, four-pole induction motor operates at 1,740 rpm. What is its
approximate slip?
A. 1.7%
B. 2.0%
C. 3.3%
D. 5.0%
,Answer: 3.3%
Rationale: Synchronous speed is 1,800 rpm. Slip = (1,800 − 1,740)/1,800 =
0.0333, or approximately 3.3%.
Q6. Which motor characteristic is most important when selecting a motor for a
high-inertia load that must accelerate rapidly?
A. Locked-rotor torque
B. Breakdown torque
C. Starting torque
D. No-load speed
Answer: Starting torque
Rationale: Starting torque determines the motor's ability to initiate acceleration
of the load from rest. High-inertia applications generally require substantial
accelerating torque.
Q7. A power factor correction capacitor is installed on a motor circuit. The
primary purpose is to:
A. Increase motor frequency
B. Reduce reactive current drawn from the source
C. Increase system voltage frequency
D. Eliminate all harmonics
Answer: Reduce reactive current drawn from the source
Rationale: Capacitors supply leading reactive power locally, reducing the
reactive current required from the utility and improving power factor.
Q8. A 120-V single-phase circuit supplies a 1,800-W resistive heater. What current
does the heater draw?
A. 7.5 A
B. 10 A
, C. 15 A
D. 20 A
Answer: 15 A
Rationale: For a resistive load, I = P/V = 1,800/120 = 15 A.
Q9. An RLC circuit is at series resonance. Which statement is correct?
A. Current is minimum
B. Inductive reactance equals capacitive reactance
C. Total impedance is maximum
D. Power factor is zero
Answer: Inductive reactance equals capacitive reactance
Rationale: At series resonance, X_L = X_C, causing the net reactance to become
zero. The circuit therefore has minimum impedance and unity power factor.
Q10. A 10-kVA, 480/120-V transformer has a rated secondary current of
approximately:
A. 41.7 A
B. 62.5 A
C. 83.3 A
D. 120 A
Answer: 83.3 A
Rationale: Secondary current is S/V = 10,000/120 ≈ 83.3 A.
Q11. What is the principal function of a circuit breaker in a power system?
A. Improve power factor
B. Interrupt fault current
C. Increase system frequency
D. Regulate generator speed
Answer: Interrupt fault current
Georgia Electrical Engineer Examination
Advanced Practice Exam 2026 | 100
Questions & Answers with Detailed
Rationales | Complete Exam Prep &
Study Guide
Q1. A balanced three-phase, 480-V system supplies a balanced load of 75 kW at
0.80 power factor lagging. What is the approximate line current?
A. 90.2 A
B. 112.7 A
C. 130.1 A
D. 156.3 A
Answer: 112.7 A
Rationale: For a balanced three-phase system, P = √3 V_L I_L PF. Therefore I =
75,000/(√3 × 480 × 0.80) ≈ 112.7 A.
Q2. A 13.8-kV transmission line has a series impedance of j6 Ω per phase. If the
sending-end current is 400 A, what is the magnitude of the reactive voltage drop
per phase?
A. 1.2 kV
B. 2.4 kV
C. 3.6 kV
D. 4.8 kV
,Answer: 2.4 kV
Rationale: The magnitude of the voltage drop is I|X| = 400 × 6 = 2,400 V per
phase.
Q3. A synchronous generator operates at 0.85 power factor lagging while
delivering 20 MW. Approximately how much reactive power is being supplied?
A. 10.5 MVAr
B. 12.4 MVAr
C. 14.0 MVAr
D. 16.8 MVAr
Answer: 12.4 MVAr
Rationale: Q = P tan(cos⁻¹ 0.85). The power-factor angle is approximately 31.79°,
giving Q ≈ 20 tan(31.79°) ≈ 12.4 MVAr.
Q4. Which transformer connection provides a neutral point on the secondary
while permitting third-harmonic currents to circulate within the delta winding?
A. Delta-delta
B. Wye-wye without neutral
C. Delta-wye
D. Open-delta
Answer: Delta-wye
Rationale: A wye secondary provides a neutral point, while the delta-connected
side provides a closed path for triplen harmonic currents.
Q5. A 60-Hz, four-pole induction motor operates at 1,740 rpm. What is its
approximate slip?
A. 1.7%
B. 2.0%
C. 3.3%
D. 5.0%
,Answer: 3.3%
Rationale: Synchronous speed is 1,800 rpm. Slip = (1,800 − 1,740)/1,800 =
0.0333, or approximately 3.3%.
Q6. Which motor characteristic is most important when selecting a motor for a
high-inertia load that must accelerate rapidly?
A. Locked-rotor torque
B. Breakdown torque
C. Starting torque
D. No-load speed
Answer: Starting torque
Rationale: Starting torque determines the motor's ability to initiate acceleration
of the load from rest. High-inertia applications generally require substantial
accelerating torque.
Q7. A power factor correction capacitor is installed on a motor circuit. The
primary purpose is to:
A. Increase motor frequency
B. Reduce reactive current drawn from the source
C. Increase system voltage frequency
D. Eliminate all harmonics
Answer: Reduce reactive current drawn from the source
Rationale: Capacitors supply leading reactive power locally, reducing the
reactive current required from the utility and improving power factor.
Q8. A 120-V single-phase circuit supplies a 1,800-W resistive heater. What current
does the heater draw?
A. 7.5 A
B. 10 A
, C. 15 A
D. 20 A
Answer: 15 A
Rationale: For a resistive load, I = P/V = 1,800/120 = 15 A.
Q9. An RLC circuit is at series resonance. Which statement is correct?
A. Current is minimum
B. Inductive reactance equals capacitive reactance
C. Total impedance is maximum
D. Power factor is zero
Answer: Inductive reactance equals capacitive reactance
Rationale: At series resonance, X_L = X_C, causing the net reactance to become
zero. The circuit therefore has minimum impedance and unity power factor.
Q10. A 10-kVA, 480/120-V transformer has a rated secondary current of
approximately:
A. 41.7 A
B. 62.5 A
C. 83.3 A
D. 120 A
Answer: 83.3 A
Rationale: Secondary current is S/V = 10,000/120 ≈ 83.3 A.
Q11. What is the principal function of a circuit breaker in a power system?
A. Improve power factor
B. Interrupt fault current
C. Increase system frequency
D. Regulate generator speed
Answer: Interrupt fault current
