How to build a wind turbine
  • 1. What is the primary function of a wind turbine?
A) Convert wind energy into electricity
B) Store wind energy
C) Measure wind speed
D) Convert solar energy into electricity
  • 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) 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) Converts mechanical energy to electrical energy
C) Stores electrical energy
D) Measures voltage
  • 5. What is the function of the tower?
A) Houses the control system
B) Supports the nacelle and rotor
C) Measures wind direction
D) Generates electricity
  • 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) Adjusts blade angle to control rotor speed
B) Monitors temperature
C) Orients the nacelle
D) Lubricates moving parts
  • 8. What material is commonly used for wind turbine blades?
A) Fiberglass composite
B) Steel
C) Wood
D) Aluminum
  • 9. What is a gear box used for in some wind turbines?
A) Decreases rotor speed
B) Increases rotor speed for the generator
C) Stabilizes the tower
D) Controls yaw
  • 10. What is the typical voltage output of a large wind turbine generator?
A) 12 volts
B) Several thousand volts
C) 120 volts
D) 240 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 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 temperature
B) Measure wind direction
C) Measure wind speed
D) Measure air pressure
  • 14. What is the purpose of lightning protection in a wind turbine?
A) Reduce noise pollution
B) Attract more wind
C) Increase electricity generation
D) Protect turbine components from lightning strikes
  • 15. What is a transformer used for in a wind turbine system?
A) Store electricity
B) Increase voltage for grid transmission
C) Regulate wind speed
D) Decrease voltage for local use
  • 16. What is a common foundation type for large wind turbines?
A) Reinforced concrete
B) Wooden piles
C) Asphalt
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 cluster
B) Wind hub
C) Wind farm
D) Wind forest
  • 20. What type of maintenance is regularly required for wind turbines?
A) Lubrication of moving parts
B) Adding fuel
C) Replacement of the tower
D) Painting the blades weekly
  • 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) System Control and Data Analysis
D) Standard Control and Data Application
  • 22. What is a direct-drive wind turbine?
A) A turbine powered directly by the sun
B) A turbine that directly heats water
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 is not a problem
B) It increases electricity generation
C) It can reduce aerodynamic efficiency and create imbalance
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 maximum wind speed the turbine can withstand
C) The minimum wind speed required to generate electricity
D) The speed at which the turbine shuts down
  • 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 actual energy output compared to the maximum possible output
B) The size of the turbine blades
C) The wind speed at the turbine location
D) The cost of building the turbine
  • 27. What is the purpose of blade feathering?
A) To reduce stress on the blades in high winds
B) To clean the blades
C) To prevent bird strikes
D) To increase electricity generation
  • 28. What is offshore wind energy?
A) Wind energy generated in mountainous regions
B) Wind energy generated by turbines located in the ocean
C) Wind energy stored underwater
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 never requires any maintenance
B) It is always the cheapest form of energy
C) It always provides a constant supply of energy
D) It is a renewable energy source
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