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Enercon Wind Turbine Service Technician Certification Practice Exam Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf
- What is the primary function of a wind turbine yaw system?
- Increase generator temperature
- Control blade pitch angle
- Align the rotor with the wind direction
- Regulate grid frequency
Rationale: Yaw systems rotate the nacelle to ensure the rotor faces
the wind for optimal energy capture.
- Which type of gearbox is most commonly used in wind turbines?
- Worm gear
- Planetary gearbox
- Helical gearbox 1 / 3
- Ratchet gearbox
Rationale: Planetary gearboxes provide high torque-density, ideal for
wind turbine loads.
- What does SCADA stand for?
- System Control and Dashboard Access
- Supervisory Control and Data Acquisition
- Secure Communication for Data Administration
- System Calibration and Data Analysis
Rationale: SCADA systems monitor and control turbine performance
remotely.
- Which safety device prevents turbine overspeed?
- Anemometer
- Transformer
- Pitch control system
- Slip ring
Rationale: Blade pitch adjusts aerodynamic load to slow rotor speed
in high wind.
5. In electrical terms, current is measured in:
- Watts
- Ohms
- Amperes
- Volts 2 / 3
Rationale: Current flow in a circuit is quantified using amperes
(amps).
6. Proper fall protection must be used at heights above:
- 2 ft (0.6m)
- 4 ft (1.2m)
- 6 ft (1.8m)
- 12 ft (3.6m)
Rationale: OSHA requires fall protection over 6 ft in general industry.
- Enercon turbines commonly use what type of generator?
- Squirrel-cage induction
- Direct-drive synchronous generator
- DC brushed generator
- Gear-driven asynchronous alternator
Rationale: Enercon utilizes gearless direct-drive synchronous
generators to reduce maintenance.
8. A lockout/tagout procedure is used to:
- Document shift handover
- Install new hardware
- Prevent accidental equipment energization
- Reduce energy output
Rationale: LOTO ensures equipment is de-energized, protecting
workers from hazards.
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