Renewable Energy in Agriculture MCQs

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1. : The most common renewable energy source used in agriculture is?
(A) Coal energy
(B) Solar energy
(C) Nuclear energy
(D) Diesel energy

2. : Biogas in rural farms is mainly produced from?
(A) Crop residues and animal dung
(B) Coal dust
(C) Diesel
(D) Fertilizers

3. : Which gas is the main component of biogas?
(A) Oxygen
(B) Methane
(C) Carbon monoxide
(D) Nitrogen

4. : The efficiency of a solar photovoltaic (PV) panel typically ranges from?
(A) 2–5%
(B) 10–20%
(C) 40–60%
(D) 70–90%

5. : Wind energy in agriculture is primarily used for?
(A) Irrigation water pumping
(B) Crop harvesting
(C) Soil testing
(D) Fertilizer production

6. : The process of converting solar energy into thermal energy is called?
(A) Photosynthesis
(B) Solar thermal conversion
(C) Biomass combustion
(D) Wind generation

7. : Which renewable energy is used for drying crops like grains and fruits?
(A) Wind energy
(B) Solar energy
(C) Tidal energy
(D) Geothermal energy

8. : The calorific value of biogas is approximately?
(A) 2,000 kcal/m³
(B) 5,000 kcal/m³
(C) 20,000 kcal/m³
(D) 50,000 kcal/m³

9. : Gasifiers convert biomass mainly into?
(A) Electricity
(B) Producer gas
(C) Fertilizer
(D) Oil

10. : Which type of solar collector is most commonly used for agricultural applications?
(A) Flat plate collector
(B) Parabolic dish collector
(C) Fresnel lens collector
(D) Heliostat

11. : Small wind turbines are generally used in agriculture for?
(A) Cooking
(B) Water pumping and small-scale electricity generation
(C) Soil preparation
(D) Crop sowing

12. : The process of producing alcohol fuel (ethanol) from sugarcane is known as?
(A) Fermentation
(B) Distillation
(C) Transesterification
(D) Carbonization

13. : Which renewable energy source is MOST suitable for greenhouse heating?
(A) Geothermal energy
(B) Coal energy
(C) Diesel energy
(D) Nuclear energy

14. : The capacity of solar dryers in agriculture is usually expressed in?
(A) Liters
(B) Kilograms of product dried per batch
(C) Watts per second
(D) Tons per hectare

15. : Which of the following is a direct solar energy application in agriculture?
(A) Solar water pumping
(B) Solar refrigeration
(C) Solar drying
(D) All of the above

16. : A common by-product of biodiesel production is?
(A) Methane
(B) Glycerol
(C) Butane
(D) Carbon monoxide

17. : Which renewable energy system helps reduce post-harvest losses of milk in villages?
(A) Solar water heater
(B) Solar-powered milk chiller
(C) Windmill
(D) Biogas plant

18. : Which type of digester is widely used in rural India for biogas production?
(A) KVIC model (floating drum)
(B) UASB reactor
(C) Fixed-bed reactor
(D) CSTR

19. : The main limitation of solar energy in agriculture is?
(A) High maintenance
(B) Intermittent and weather dependent
(C) Non-renewable
(D) Low safety

20. : Which biomass crop is specifically grown for biofuel production?
(A) Rice
(B) Jatropha
(C) Wheat
(D) Cotton

21. : The unit of solar radiation measurement is?
(A) Lux
(B) Watt per square meter (W/m²)
(C) Calorie per gram
(D) Newton per meter

22. : The main advantage of renewable energy in agriculture is?
(A) High pollution
(B) Sustainability and low emissions
(C) High cost only
(D) Limited applications

23. : Which renewable energy is MOST suitable for lifting groundwater in remote farms?
(A) Solar photovoltaic
(B) Nuclear
(C) Diesel generator
(D) Geothermal

24. : Anaerobic digestion in biogas plants occurs in?
(A) Presence of oxygen
(B) Absence of oxygen
(C) High sunlight
(D) Vacuum chamber

25. : The ultimate goal of renewable energy use in agriculture is to?
(A) Increase greenhouse gas emissions
(B) Promote sustainable, low-cost, and eco-friendly farming
(C) Depend on fossil fuels
(D) Reduce crop yields