How to build a wind turbine
  • 1. What is the primary function of a wind turbine?
A) Convert solar energy into electricity
B) Convert wind energy into electricity
C) Measure wind speed
D) Store wind energy
  • 2. What part of the wind turbine captures the wind's energy?
A) Tower
B) Rotor blades
C) Generator
D) Nacelle
  • 3. What is the nacelle?
A) Housing for generator and other components
B) The wind speed sensor
C) The base of the tower
D) The rotor blades combined
  • 4. What does the generator do in a wind turbine?
A) Stores electrical energy
B) Increases wind speed
C) Measures voltage
D) Converts mechanical energy to electrical energy
  • 5. What is the function of the tower?
A) Generates electricity
B) Supports the nacelle and rotor
C) Measures wind direction
D) Houses the control system
  • 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) Lubricates moving parts
B) Adjusts blade angle to control rotor speed
C) Orients the nacelle
D) Monitors temperature
  • 8. What material is commonly used for wind turbine blades?
A) Aluminum
B) Steel
C) Wood
D) Fiberglass composite
  • 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) 120 volts
B) Several thousand volts
C) 12 volts
D) 240 volts
  • 11. Which of these is NOT a major component of a wind turbine?
A) Tower
B) Blades
C) Nacelle
D) Radiator
  • 12. What is an anemometer used for on a wind turbine?
A) Measure voltage
B) Measure wind speed
C) Measure wind direction
D) Measure blade pitch
  • 13. What is a wind vane used for on a wind turbine?
A) Measure wind direction
B) Measure air pressure
C) Measure temperature
D) Measure wind speed
  • 14. What is the purpose of lightning protection in a wind turbine?
A) Protect turbine components from lightning strikes
B) Increase electricity generation
C) Reduce noise pollution
D) Attract more wind
  • 15. What is a transformer used for in a wind turbine system?
A) Store electricity
B) Regulate wind speed
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) Reinforced concrete
C) Asphalt
D) Wooden piles
  • 17. What factor is most important for choosing a wind turbine location?
A) Flat terrain
B) Wind resource availability
C) Abundant sunshine
D) Proximity to a city
  • 18. What is the benefit of taller wind turbine towers?
A) Reduced visual impact
B) Lower construction costs
C) Access to stronger and more consistent winds
D) Easier maintenance
  • 19. What is the term for grouping multiple wind turbines together?
A) Wind cluster
B) Wind farm
C) Wind hub
D) Wind forest
  • 20. What type of maintenance is regularly required for wind turbines?
A) Painting the blades weekly
B) Lubrication of moving parts
C) Replacement of the tower
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) Sustainable Control and Design Automation
D) Supervisory Control and Data Acquisition
  • 22. What is a direct-drive wind turbine?
A) A turbine powered directly by the sun
B) A turbine with only one blade
C) A turbine without a gearbox
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 strengthens the blades
C) It increases electricity generation
D) It is not a problem
  • 24. What is the cut-in speed of a wind turbine?
A) The minimum wind speed required to generate electricity
B) The average wind speed at the location
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 actual energy output compared to the maximum possible output
C) The size of the turbine blades
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 increase electricity generation
C) To prevent bird strikes
D) To clean the blades
  • 28. What is offshore wind energy?
A) Wind energy generated by turbines located in the ocean
B) Wind energy generated in mountainous regions
C) Wind energy used to power ships
D) Wind energy stored underwater
  • 29. What is a potential environmental concern associated with wind turbines?
A) Air pollution
B) Increased rainfall
C) Bird and bat mortality
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 a renewable energy source
C) It never requires any maintenance
D) It is always the cheapest form of energy
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