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