How to build a wind turbine
  • 1. What is the primary function of a wind turbine?
A) Convert wind energy into electricity
B) Measure wind speed
C) Store wind energy
D) Convert solar energy into electricity
  • 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 wind speed sensor
B) The rotor blades combined
C) Housing for generator and other components
D) The base of the tower
  • 4. What does the generator do in a wind turbine?
A) Stores electrical energy
B) Converts mechanical energy to electrical energy
C) Measures voltage
D) Increases wind speed
  • 5. What is the function of the tower?
A) Houses the control system
B) Supports the nacelle and rotor
C) Generates electricity
D) Measures wind direction
  • 6. What is a yaw system?
A) Orients the rotor into the wind
B) Regulates voltage output
C) Monitors wind speed
D) Controls blade pitch
  • 7. What does a pitch control system do?
A) Orients the nacelle
B) Monitors temperature
C) Lubricates moving parts
D) Adjusts blade angle to control rotor speed
  • 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) Controls yaw
B) Stabilizes the tower
C) Decreases rotor speed
D) Increases rotor speed for the generator
  • 10. What is the typical voltage output of a large wind turbine generator?
A) 12 volts
B) 240 volts
C) 120 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 wind direction
B) Measure wind speed
C) Measure blade pitch
D) Measure voltage
  • 13. What is a wind vane used for on a wind turbine?
A) Measure wind speed
B) Measure wind direction
C) Measure temperature
D) Measure air pressure
  • 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) Decrease voltage for local use
B) Increase voltage for grid transmission
C) Regulate wind speed
D) Store electricity
  • 16. What is a common foundation type for large wind turbines?
A) Wooden piles
B) Steel beams
C) Reinforced concrete
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) Access to stronger and more consistent winds
B) Lower construction costs
C) Easier maintenance
D) Reduced visual impact
  • 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) Adding fuel
B) Painting the blades weekly
C) Lubrication of moving parts
D) Replacement of the tower
  • 21. What does SCADA stand for in the context of wind turbines?
A) Standard Control and Data Application
B) System Control and Data Analysis
C) Supervisory Control and Data Acquisition
D) Sustainable Control and Design Automation
  • 22. What is a direct-drive wind turbine?
A) A turbine without a gearbox
B) A turbine that directly heats water
C) A turbine with only one blade
D) A turbine powered directly by the sun
  • 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 is not a problem
D) It strengthens the blades
  • 24. What is the cut-in speed of a wind turbine?
A) The speed at which the turbine shuts down
B) The maximum wind speed the turbine can withstand
C) The average wind speed at the location
D) The minimum wind speed required to generate electricity
  • 25. What is the cut-out speed of a wind turbine?
A) The maximum wind speed at which the turbine shuts down
B) The minimum wind speed required to generate electricity
C) The speed at which the turbine starts up
D) The average wind speed at the location
  • 26. What is the capacity factor of a wind turbine?
A) The cost of building the turbine
B) The wind speed at the turbine location
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 reduce stress on the blades in high winds
B) To prevent bird strikes
C) To clean the blades
D) To increase electricity generation
  • 28. What is offshore wind energy?
A) Wind energy generated by turbines located in the ocean
B) Wind energy used to power ships
C) Wind energy stored underwater
D) Wind energy generated in mountainous regions
  • 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 is a renewable energy source
B) It is always the cheapest form of energy
C) It always provides a constant supply of energy
D) It never requires any maintenance
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