Wind Energy for Agricultural Use MCQs

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1. : The primary agricultural use of wind energy is?
(A) Seed germination
(B) Water pumping for irrigation
(C) Fertilizer application
(D) Grain harvesting

2. : The device used to convert wind energy into mechanical or electrical energy is called?
(A) Windmill / Wind turbine
(B) Dynamo
(C) Boiler
(D) Compressor

3. : Wind speed is measured using?
(A) Barometer
(B) Anemometer
(C) Hygrometer
(D) Altimeter

4. : The power available in the wind is proportional to?
(A) Wind speed
(B) Square of wind speed
(C) Cube of wind speed
(D) Pressure of air

5. : Which type of windmill has blades rotating around a vertical axis?
(A) Horizontal axis windmill
(B) Vertical axis windmill
(C) Diagonal axis windmill
(D) Helical axis windmill

6. : The efficiency limit of wind energy conversion, known as Betz’s limit, is?
(A) 29%
(B) 41%
(C) 59%
(D) 79%

7. : In agriculture, small windmills are commonly used for?
(A) Refrigeration
(B) Water pumping and small-scale electricity
(C) Fertilizer spraying
(D) Grain storage

8. : The minimum wind speed required to operate a wind turbine is called?
(A) Cut-in speed
(B) Cut-out speed
(C) Rated speed
(D) Stall speed

9. : The ideal average wind speed required for efficient wind energy generation is?
(A) 1–2 m/s
(B) 3–5 m/s
(C) 6–9 m/s
(D) 12–15 m/s

10. : The largest application of wind pumps in agriculture is in?
(A) Grain drying
(B) Irrigation and livestock watering
(C) Dairy processing
(D) Fertilizer storage

11. : The mechanical energy from windmills can also be used for?
(A) Grinding grains
(B) Seed treatment
(C) Soil tillage
(D) Crop spraying

12. : Which factor most affects wind energy availability?
(A) Soil type
(B) Latitude and topography
(C) Irrigation method
(D) Fertilizer use

13. : The vertical-axis wind turbine commonly used in agriculture is?
(A) Savonius rotor
(B) Francis turbine
(C) Kaplan turbine
(D) Pelton wheel

14. : The energy in wind is caused by?
(A) Ocean currents
(B) Uneven heating of the Earth’s surface by the sun
(C) Soil moisture changes
(D) Geothermal activity

15. : The cut-out speed of wind turbines is the speed at which?
(A) The turbine starts operating
(B) The turbine stops to prevent damage
(C) The turbine runs at maximum power
(D) The turbine stalls

16. : Wind turbines are generally installed at greater heights to?
(A) Reduce costs
(B) Capture higher wind speeds with less turbulence
(C) Avoid maintenance
(D) Reduce blade size

17. : The average lifespan of a modern wind turbine is about?
(A) 5–7 years
(B) 10–12 years
(C) 20–25 years
(D) 40–50 years

18. : Which component of a wind turbine converts rotational energy into electricity?
(A) Gearbox
(B) Generator
(C) Rotor blade
(D) Shaft

19. : The best locations for wind energy use in agriculture are?
(A) Forest areas
(B) Open plains, coastal regions, and hilltops
(C) Underground farms
(D) Urban centers

20. : The typical capacity of small wind turbines used in farms is?
(A) 10–100 W
(B) 500 W – 10 kW
(C) 100 kW – 500 kW
(D) Above 1 MW

21. : The main environmental benefit of wind energy is?
(A) High pollution
(B) Renewable and zero greenhouse gas emissions during operation
(C) Soil erosion
(D) Forest cutting

22. : The main disadvantage of wind energy in agriculture is?
(A) Dependence on variable wind speed
(B) High fuel requirement
(C) High greenhouse gas emission
(D) Low water quality

23. : Hybrid renewable energy systems in farms often combine wind with?
(A) Coal
(B) Solar PV
(C) Nuclear
(D) Diesel

24. : Small-scale wind turbines in agriculture are often connected to?
(A) Batteries for energy storage
(B) Water canals
(C) Fertilizer tanks
(D) Grain silos

25. : The ultimate goal of using wind energy in agriculture is to?
(A) Increase fossil fuel dependency
(B) Promote sustainable and cost-effective farming practices
(C) Increase greenhouse gas emissions
(D) Reduce crop productivity