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How to build a wind turbine
Contributed by: Sadler
  • 1. What is the primary function of a wind turbine?
A) Measure wind speed
B) Convert solar energy into electricity
C) Store wind energy
D) Convert wind energy into electricity
  • 2. What part of the wind turbine captures the wind's energy?
A) Generator
B) Tower
C) Nacelle
D) Rotor blades
  • 3. What is the nacelle?
A) The base of the tower
B) The rotor blades combined
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) 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) Generates electricity
D) Supports the nacelle and rotor
  • 6. What is a yaw system?
A) Regulates voltage output
B) Orients the rotor into the wind
C) Monitors wind speed
D) Controls blade pitch
  • 7. What does a pitch control system do?
A) Orients the nacelle
B) Adjusts blade angle to control rotor speed
C) Monitors temperature
D) Lubricates moving parts
  • 8. What material is commonly used for wind turbine blades?
A) Wood
B) Steel
C) Fiberglass composite
D) Aluminum
  • 9. What is a gear box used for in some wind turbines?
A) Controls yaw
B) Decreases rotor speed
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) 12 volts
B) 120 volts
C) 240 volts
D) Several thousand volts
  • 11. Which of these is NOT a major component of a wind turbine?
A) Tower
B) Radiator
C) Blades
D) Nacelle
  • 12. What is an anemometer used for on a wind turbine?
A) Measure blade pitch
B) Measure wind speed
C) Measure voltage
D) Measure wind direction
  • 13. What is a wind vane used for on a wind turbine?
A) Measure wind speed
B) Measure wind direction
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) Attract more wind
C) Reduce noise pollution
D) Increase electricity generation
  • 15. What is a transformer used for in a wind turbine system?
A) Decrease voltage for local use
B) Regulate wind speed
C) Store electricity
D) Increase voltage for grid transmission
  • 16. What is a common foundation type for large wind turbines?
A) Asphalt
B) Reinforced concrete
C) Steel beams
D) Wooden piles
  • 17. What factor is most important for choosing a wind turbine location?
A) Proximity to a city
B) Wind resource availability
C) Abundant sunshine
D) Flat terrain
  • 18. What is the benefit of taller wind turbine towers?
A) Access to stronger and more consistent winds
B) Reduced visual impact
C) Easier maintenance
D) Lower construction costs
  • 19. What is the term for grouping multiple wind turbines together?
A) Wind forest
B) Wind cluster
C) Wind hub
D) Wind farm
  • 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) 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 with only one blade
C) A turbine without a gearbox
D) A turbine powered directly by the sun
  • 23. What is blade icing a potential problem for wind turbines?
A) It strengthens the blades
B) It is not a problem
C) It can reduce aerodynamic efficiency and create imbalance
D) It increases electricity generation
  • 24. What is the cut-in speed of a wind turbine?
A) The average wind speed at the location
B) The maximum wind speed the turbine can withstand
C) The speed at which the turbine shuts down
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 speed at which the turbine starts up
C) The average wind speed at the location
D) The maximum wind speed at which the turbine shuts down
  • 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 wind speed at the turbine location
D) The size of the turbine blades
  • 27. What is the purpose of blade feathering?
A) To increase electricity generation
B) To clean the blades
C) To reduce stress on the blades in high winds
D) To prevent bird strikes
  • 28. What is offshore wind energy?
A) Wind energy generated in mountainous regions
B) Wind energy stored underwater
C) Wind energy used to power ships
D) Wind energy generated by turbines located in the ocean
  • 29. What is a potential environmental concern associated with wind turbines?
A) Water pollution
B) Bird and bat mortality
C) Air pollution
D) Increased rainfall
  • 30. Which of the following is a benefit of using wind energy?
A) It is always the cheapest form of energy
B) It is a renewable energy source
C) It never requires any maintenance
D) It always provides a constant supply of energy
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