How to build a wind turbine
  • 1. What is the primary function of a wind turbine?
A) Store wind energy
B) Convert solar energy into electricity
C) Convert wind energy into electricity
D) Measure wind speed
  • 2. What part of the wind turbine captures the wind's energy?
A) Nacelle
B) Rotor blades
C) Generator
D) Tower
  • 3. What is the nacelle?
A) Housing for generator and other components
B) The rotor blades combined
C) The wind speed sensor
D) The base of the tower
  • 4. What does the generator do in a wind turbine?
A) Stores electrical energy
B) Measures voltage
C) Increases wind speed
D) Converts mechanical energy to electrical energy
  • 5. What is the function of the tower?
A) Houses the control system
B) Generates electricity
C) Supports the nacelle and rotor
D) Measures wind direction
  • 6. What is a yaw system?
A) Orients the rotor into the wind
B) Regulates voltage output
C) Controls blade pitch
D) Monitors wind speed
  • 7. What does a pitch control system do?
A) Adjusts blade angle to control rotor speed
B) Orients the nacelle
C) Lubricates moving parts
D) Monitors temperature
  • 8. What material is commonly used for wind turbine blades?
A) Steel
B) Aluminum
C) Fiberglass composite
D) Wood
  • 9. What is a gear box used for in some wind turbines?
A) Decreases rotor speed
B) Controls yaw
C) Stabilizes the tower
D) Increases rotor speed for the generator
  • 10. What is the typical voltage output of a large wind turbine generator?
A) 120 volts
B) 240 volts
C) Several thousand volts
D) 12 volts
  • 11. Which of these is NOT a major component of a wind turbine?
A) Blades
B) Tower
C) Radiator
D) Nacelle
  • 12. What is an anemometer used for on a wind turbine?
A) Measure blade pitch
B) Measure wind direction
C) Measure wind speed
D) Measure voltage
  • 13. What is a wind vane used for on a wind turbine?
A) Measure wind direction
B) Measure air pressure
C) Measure wind speed
D) Measure temperature
  • 14. What is the purpose of lightning protection in a wind turbine?
A) Protect turbine components from lightning strikes
B) Reduce noise pollution
C) Increase electricity generation
D) Attract more wind
  • 15. What is a transformer used for in a wind turbine system?
A) Store electricity
B) Regulate wind speed
C) Decrease voltage for local use
D) Increase voltage for grid transmission
  • 16. What is a common foundation type for large wind turbines?
A) Reinforced concrete
B) Wooden piles
C) Steel beams
D) Asphalt
  • 17. What factor is most important for choosing a wind turbine location?
A) Proximity to a city
B) Flat terrain
C) Wind resource availability
D) Abundant sunshine
  • 18. What is the benefit of taller wind turbine towers?
A) Reduced visual impact
B) Easier maintenance
C) Lower construction costs
D) Access to stronger and more consistent winds
  • 19. What is the term for grouping multiple wind turbines together?
A) Wind forest
B) Wind farm
C) Wind cluster
D) Wind hub
  • 20. What type of maintenance is regularly required for wind turbines?
A) Adding fuel
B) Painting the blades weekly
C) Replacement of the tower
D) Lubrication of moving parts
  • 21. What does SCADA stand for in the context of wind turbines?
A) Sustainable Control and Design Automation
B) Supervisory Control and Data Acquisition
C) Standard Control and Data Application
D) System Control and Data Analysis
  • 22. What is a direct-drive wind turbine?
A) A turbine without a gearbox
B) A turbine powered directly by the sun
C) A turbine with only one blade
D) A turbine that directly heats water
  • 23. What is blade icing a potential problem for wind turbines?
A) It is not a problem
B) It can reduce aerodynamic efficiency and create imbalance
C) It increases electricity generation
D) It strengthens the blades
  • 24. What is the cut-in speed of a wind turbine?
A) The minimum wind speed required to generate electricity
B) The maximum wind speed the turbine can withstand
C) The speed at which the turbine shuts down
D) The average wind speed at the location
  • 25. What is the cut-out speed of a wind turbine?
A) The maximum wind speed at which the turbine shuts down
B) The average wind speed at the location
C) The speed at which the turbine starts up
D) The minimum wind speed required to generate electricity
  • 26. What is the capacity factor of a wind turbine?
A) The cost of building the turbine
B) The size of the turbine blades
C) The actual energy output compared to the maximum possible output
D) The wind speed at the turbine location
  • 27. What is the purpose of blade feathering?
A) To clean the blades
B) To reduce stress on the blades in high winds
C) To prevent bird strikes
D) To increase electricity generation
  • 28. What is offshore wind energy?
A) Wind energy used to power ships
B) Wind energy generated in mountainous regions
C) Wind energy stored underwater
D) Wind energy generated by turbines located in the ocean
  • 29. What is a potential environmental concern associated with wind turbines?
A) Air pollution
B) Bird and bat mortality
C) Water pollution
D) Increased rainfall
  • 30. Which of the following is a benefit of using wind energy?
A) It is a renewable energy source
B) It always provides a constant supply of energy
C) It is always the cheapest form of energy
D) It never requires any maintenance
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