Energy Resources MCQs 25 Score: 0 Attempted: 0/25 Subscribe 1. : The primary source of energy on Earth is: (A) Wind (B) Sun (C) Fossil fuels (D) Geothermal heat 2. : Fossil fuels are considered: (A) Renewable resources (B) Non-renewable resources (C) Inexhaustible resources (D) Alternative energy 3. : The major component of natural gas is: (A) Ethane (B) Propane (C) Methane (D) Butane 4. : Coal is primarily composed of: (A) Nitrogen (B) Carbon (C) Hydrogen (D) Oxygen 5. : Which fossil fuel has the highest energy content per unit mass? (A) Coal (B) Natural gas (C) Oil (D) Peat 6. : Hydropower generates electricity by using: (A) Sunlight (B) Moving water (C) Nuclear fission (D) Wind 7. : Which energy source is the cleanest form of fossil fuel? (A) Coal (B) Petroleum (C) Natural gas (D) Peat 8. : Which of the following is an example of a renewable energy resource? (A) Oil (B) Wind (C) Coal (D) Natural gas 9. : Which country is the largest producer of solar energy? (A) USA (B) India (C) China (D) Germany 10. : The process of splitting heavy atomic nuclei to release energy is called: (A) Fusion (B) Fission (C) Combustion (D) Gasification 11. : Nuclear power plants commonly use which element as fuel? (A) Carbon (B) Uranium-235 (C) Thorium oxide (D) Plutonium-238 12. : The largest share of global electricity production comes from: (A) Renewable energy (B) Fossil fuels (C) Nuclear energy (D) Hydropower 13. : Biomass energy is primarily obtained from: (A) Sunlight (B) Organic matter (C) Wind (D) Ocean waves 14. : Which of the following is NOT a form of renewable energy? (A) Geothermal (B) Solar (C) Oil (D) Tidal 15. : The measure of energy produced per unit time is called: (A) Voltage (B) Power (C) Current (D) Resistance 16. : Wind turbines convert: (A) Solar radiation into heat (B) Kinetic energy of wind into electricity (C) Nuclear energy into heat (D) Biomass into liquid fuels 17. : Which renewable energy is derived from Earth’s internal heat? (A) Geothermal energy (B) Solar energy (C) Wind energy (D) Biomass energy 18. : The largest hydropower dam in the world is: (A) Hoover Dam (USA) (B) Itaipu Dam (Brazil-Paraguay) (C) Three Gorges Dam (China) (D) Tarbela Dam (Pakistan) 19. : Energy obtained from ocean tides is caused by: (A) Earth’s rotation (B) Gravitational pull of the Moon and Sun (C) Ocean currents (D) Solar heating 20. : Which of the following is a secondary energy source? (A) Natural gas (B) Oil (C) Electricity (D) Coal 21. : The energy efficiency of a system is defined as: (A) Input energy / Output energy × 100 (B) Output energy / Input energy × 100 (C) Input – Output energy (D) Energy lost in transmission 22. : Which of the following fuels emits the highest amount of CO₂ per unit of energy produced? (A) Coal (B) Oil (C) Natural gas (D) Biomass 23. : Which renewable energy technology is most suitable for remote villages? (A) Nuclear power (B) Solar photovoltaic systems (C) Coal power plants (D) Oil refineries 24. : Hydrogen fuel is considered clean because: (A) It releases only carbon dioxide when burned (B) It produces only water as a by-product (C) It is produced from coal (D) It requires no energy to produce 25. : The unit of electrical energy commonly used in households is: (A) Watt (B) Joule (C) Kilowatt-hour (kWh) (D) Newton