CERTIFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
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1. What is the primary purpose of a wind turbine?
A. Store electrical energy
B. Convert wind energy into electrical energy
C. Compress air
D. Generate heat
Rationale: Wind turbines convert kinetic wind energy into
electricity.
Correct Answer: B
2. Wind is primarily caused by:
A. Ocean tides
B. Earth’s rotation only
C. Uneven heating of the Earth’s surface
D. Solar flares
Rationale: Temperature differences create pressure differences
causing wind.
Correct Answer: C
3. The unit of electrical power is:
A. Volt
,B. Ampere
C. Watt
D. Ohm
Rationale: Power is measured in watts.
Correct Answer: C
4. The main component that converts mechanical energy to
electrical energy is:
A. Gearbox
B. Generator
C. Rotor blade
D. Tower
Rationale: The generator produces electricity.
Correct Answer: B
5. Wind speed is typically measured using a:
A. Barometer
B. Anemometer
C. Hygrometer
D. Thermometer
Rationale: Anemometers measure wind speed.
Correct Answer: B
6. The function of wind turbine blades is to:
A. Increase voltage
,B. Capture wind energy
C. Store energy
D. Reduce friction
Rationale: Blades capture kinetic energy from wind.
Correct Answer: B
7. Electrical current is measured in:
A. Volts
B. Watts
C. Amperes
D. Ohms
Rationale: Current is measured in amperes.
Correct Answer: C
8. What type of current do wind turbines typically generate
before conversion?
A. DC
B. AC
C. Pulsed current
D. Static current
Rationale: Generators often produce AC directly or via
conversion systems.
Correct Answer: B
, 9. The tower of a wind turbine primarily supports:
A. Electrical cables
B. Rotor and nacelle
C. Transformers only
D. Cooling systems
Rationale: Tower supports the turbine structure.
Correct Answer: B
10. Wind power increases proportionally to:
A. Wind speed
B. Wind speed squared
C. Wind speed cubed
D. Wind speed divided by 2
Rationale: Power increases with cube of wind speed.
Correct Answer: C
11. The nacelle houses:
A. Only blades
B. Generator and gearbox
C. Tower base
D. Foundation bolts
Rationale: Nacelle contains major mechanical components.
Correct Answer: B