IBEW Wind Turbine Technician
Certification Exam Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A | Instant
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All subjects: Electrical, Mechanical, Safety, Rigging, Hydraulics, Wind
Systems, Troubleshooting
1. The primary function of a nacelle in a wind turbine is to:
A. Support the tower
B. House critical mechanical and electrical components
C. Store backup batteries
D. Measure wind direction
Rationale: The nacelle contains gearbox, generator, brakes, and
control systems critical to turbine operation.
2. Ohm’s Law states:
A. Voltage ÷ Current = Resistance
, B. Voltage = Current × Resistance
C. Current = Voltage × Resistance
D. Power = Voltage × Resistance
Rationale: Ohm’s Law defines voltage as the product of current and
resistance.
3. The primary purpose of a Lockout/Tagout procedure is to:
A. Provide machine diagnostics
B. Reduce noise levels
C. Prevent unexpected energization
D. Track maintenance records
Rationale: LOTO ensures hazardous energy is isolated to prevent
accidental startup.
4. A gearbox is commonly used in wind turbines to:
A. Increase torque to the rotor
B. Decrease generator RPM
C. Increase RPM from rotor to generator
D. Reduce braking power
Rationale: Gearboxes convert slow rotor rotation into high-speed
generator rotation.
5. Which PPE is required when climbing a wind tower?
A. Ear protection only
B. Hard hat only
C. Full fall arrest system
, D. Safety shoes only
Rationale: Tower climbing requires certified fall protection to prevent
injury.
6. What type of current is typically generated by a wind turbine
generator?
A. DC
B. Pulsating DC
C. AC
D. High-voltage static
Rationale: Generators produce alternating current before grid
conditioning.
7. The slip rings in a wind turbine enable:
A. Rotor speed control
B. Transfer of power/signals from rotating hub to stationary
components
C. Grounding from tower base
D. Cooling of generator
Rationale: Slip rings maintain electrical continuity during rotation.
8. When using a hydraulic torque wrench, the most important factor is:
A. Color of hoses
B. Correct torque setting and calibration
C. Tool weight
Certification Exam Practice Questions And Correct Answers
(Verified Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
All subjects: Electrical, Mechanical, Safety, Rigging, Hydraulics, Wind
Systems, Troubleshooting
1. The primary function of a nacelle in a wind turbine is to:
A. Support the tower
B. House critical mechanical and electrical components
C. Store backup batteries
D. Measure wind direction
Rationale: The nacelle contains gearbox, generator, brakes, and
control systems critical to turbine operation.
2. Ohm’s Law states:
A. Voltage ÷ Current = Resistance
, B. Voltage = Current × Resistance
C. Current = Voltage × Resistance
D. Power = Voltage × Resistance
Rationale: Ohm’s Law defines voltage as the product of current and
resistance.
3. The primary purpose of a Lockout/Tagout procedure is to:
A. Provide machine diagnostics
B. Reduce noise levels
C. Prevent unexpected energization
D. Track maintenance records
Rationale: LOTO ensures hazardous energy is isolated to prevent
accidental startup.
4. A gearbox is commonly used in wind turbines to:
A. Increase torque to the rotor
B. Decrease generator RPM
C. Increase RPM from rotor to generator
D. Reduce braking power
Rationale: Gearboxes convert slow rotor rotation into high-speed
generator rotation.
5. Which PPE is required when climbing a wind tower?
A. Ear protection only
B. Hard hat only
C. Full fall arrest system
, D. Safety shoes only
Rationale: Tower climbing requires certified fall protection to prevent
injury.
6. What type of current is typically generated by a wind turbine
generator?
A. DC
B. Pulsating DC
C. AC
D. High-voltage static
Rationale: Generators produce alternating current before grid
conditioning.
7. The slip rings in a wind turbine enable:
A. Rotor speed control
B. Transfer of power/signals from rotating hub to stationary
components
C. Grounding from tower base
D. Cooling of generator
Rationale: Slip rings maintain electrical continuity during rotation.
8. When using a hydraulic torque wrench, the most important factor is:
A. Color of hoses
B. Correct torque setting and calibration
C. Tool weight
