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