Renewable Energy MCQ

Renewable Energy MCQ includes important questions on solar, wind, hydro, biomass, geothermal, and sustainable power technologies. These objective questions help students strengthen core concepts of clean energy systems and prepare for engineering exams and green technology-related competitive tests.

Q1. Which of the following is a renewable energy source?

Correct Answer: C

Solar energy is a clean and renewable source.

Q2. The primary source of solar energy is?

Correct Answer: B

Solar energy comes directly from the Sun.

Q3. Which device converts sunlight into electrical energy?

Correct Answer: C

Solar panels generate electricity from sunlight.

Q4. Wind turbines convert?

Correct Answer: B

Wind turbines convert kinetic energy of wind to electricity.

Q5. Hydropower plants use energy from?

Correct Answer: B

Hydropower uses kinetic energy of flowing water.

Q6. Which of the following is a clean fuel?

Correct Answer: A

Biogas is a renewable and clean burning fuel.

Q7. Geothermal energy is derived from?

Correct Answer: B

Geothermal energy comes from heat stored in the Earth.

Q8. Which country is a global leader in solar power generation?

Correct Answer: B

China leads in global solar power production.

Q9. Biomass energy is produced from?

Correct Answer: B

Biomass is generated from organic materials.

Q10. The unit of electrical energy is?

Correct Answer: B

Watt-hour is a unit of electrical energy.

Q11. Which energy source is formed from decayed plants?

Correct Answer: B

Biomass energy comes from decomposed organic matter.

Q12. The main disadvantage of solar energy is?

Correct Answer: C

Solar energy depends on sunlight availability.

Q13. Which energy is generated by ocean tides?

Correct Answer: B

Tidal energy uses the rise and fall of tides.

Q14. Nuclear power uses which element?

Correct Answer: B

Uranium is widely used in nuclear reactors.

Q15. What is the main advantage of wind energy?

Correct Answer: A

Wind energy is clean and renewable.

Q16. Solar cells are made of?

Correct Answer: A

Solar cells are primarily made using silicon.

Q17. Which renewable energy is most widely used worldwide?

Correct Answer: B

Hydropower is the most used renewable energy source.

Q18. Which energy source produces zero emissions?

Correct Answer: A

Solar power generates electricity with zero emissions.

Q19. Which device stores solar energy for later use?

Correct Answer: C

Batteries store energy produced from solar panels.

Q20. Ocean thermal energy conversion (OTEC) uses?

Correct Answer: A

OTEC uses temperature difference between surface and deep ocean.

Q21. Which renewable source is used for cooking in rural areas?

Correct Answer: A

Biogas is widely used for cooking in rural regions.

Q22. Which gas is used in biogas plants?

Correct Answer: B

Methane is the primary combustible gas in biogas.

Q23. Hydrogen fuel is considered?

Correct Answer: B

Hydrogen fuel produces only water as a byproduct.

Q24. Wind energy originates from?

Correct Answer: B

Wind is created by uneven heating of Earth’s surface.

Q25. Which technology converts biomass into ethanol?

Correct Answer: A

Fermentation converts biomass sugars into ethanol.

Q26. Geothermal power plants require?

Correct Answer: C

Geothermal plants need underground heat sources.

Q27. Solar thermal energy is mainly used for?

Correct Answer: B

Solar thermal systems heat water using sunlight.

Q28. Which renewable source can work 24/7?

Correct Answer: C

Geothermal plants operate continuously.

Q29. The efficiency of wind turbines depends on?

Correct Answer: A

Higher wind speeds generate more electricity.

Q30. Energy crops are grown for?

Correct Answer: B

Energy crops like sugarcane are used for biofuel production.

Q31. Photovoltaic effect converts?

Correct Answer: B

PV effect converts sunlight directly into electricity.

Q32. Which energy source depends on rainfall?

Correct Answer: A

Hydropower generation depends on water availability.

Q33. Which country uses the most wind energy?

Correct Answer: B

China is the global leader in wind energy usage.

Q34. The main component of solar energy reaching Earth is?

Correct Answer: C

Visible light is the largest portion of solar radiation.

Q35. Biofuel is produced from?

Correct Answer: B

Biofuels are derived from organic biological materials.

Q36. Which device tracks sun movement?

Correct Answer: B

Solar trackers align panels to follow sun movement.

Q37. The biggest challenge of renewable energy is?

Correct Answer: B

Renewable sources like wind/solar are not always available.

Q38. Which renewable technology uses mirrors to focus sunlight?

Correct Answer: B

CSP uses mirrors to concentrate sunlight for heat.

Q39. Hydrogen can be produced using?

Correct Answer: A

Electrolysis splits water into hydrogen and oxygen.

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