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Wind Energy Quiz 8 (25 MCQs)

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1. What countries use wind energy?
2. Which of the following is not an example of the historical use of windmills?
3. The branch of dynamics that deals with the motion of air and other gaseous fluids, and the forces acting in motion relative to such fluids.
4. Sunlight is made of bundles of radiant energy called
5. Calculate the area needed for PV panels with an efficiency of 21% to charge a battery that stores 9.0 MJ in 8 hours of daylight. (solar constant 1360 W m$^{-2}$)
6. Our text teaches us about _____
7. The wind is blowing, but the wind turbine is not moving, reasons for this are:
8. What do you think HydroPower Energy Is?
9. Wind energy is the only form of alternative energy that doesn't require _____?
10. What instrument measures Wind Speed
11. Wind energy is classified as a _____ of energy since its production does not involve emission of dangerous fumes like fossil fuels.
12. What is the united states wind energy capacity as of 2020?
13. The speed of the wind, which is full of _____ energy, is harvested and converted into mechanical energy to be used to turn windmills.
14. There are two disadvantages to horizontal axis wind turbines (HAWT's):they can't operate at lower wind speeds, and:
15. Why are turbine blades placed at certain distance in front of the tower in horizontal axis wind turbines?
16. Which state has the MOST wind turbines?
17. Place the following events in sequence:A) Persians use windmills to grind grain; B) Wind is used to power sailboats; C) Europeans develop windmills
18. An area of land with a group of energy-producing windmills or wind turbines
19. How many wind turbine jobs are projected by 2050
20. Modern wind turbines can be of 2 types. What are they?
21. Do the blades spin fast enough to generate enough electricity to power homes without the use of a gear box?
22. What is the name of the force pulling the plane up?
23. Who was the first American to produce electricity using a wind turbine?
24. Some modern turbines exploit the advantages of both the pitch and stall controlled options for regulating its power. This is called the _____
25. Which option is better for a wind pump?
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