Class 10 Quiz Level 2 (Moderate) – Source Of Energy Leave a Comment / By anushka kumari / August 13, 2024 Class 10 Quiz Level 2 (Moderate) – Source Of Energy Total questions: 30 1. Geothermal energy is most suitable for regions with: Deselect Answer High wind speeds Abundant sunlight Volcanic activity Low rainfall None 2. What is the primary function of a solar inverter in a solar power system? Deselect Answer To store solar energy To convert DC to AC To track the sun's position To increase the temperature None 3. Wind turbines are most efficient when placed: Deselect Answer In valleys Near buildings On hilltops In forests None 4. Pumped-storage hydroelectricity is used to: Deselect Answer Generate electricity from wind Store energy during low demand Produce solar power Generate tidal energy None 5. What is the role of a turbine in a hydroelectric power plant? Deselect Answer To store water To convert mechanical energy to electrical energy To regulate water flow To generate heat None 6. A solar panel generates 300 watts of power in 5 hours of sunlight. Calculate the total energy generated in kilowatt-hours (kWh). Deselect Answer 0.15 kWh 1.5 kWh 15 kWh 150 kWh None 7. Which of the following practices promotes energy conservation? Deselect Answer Using incandescent bulbs Leaving appliances on standby Insulating homes Running water heaters all day None 8. Which of the following is a limitation of renewable energy sources? Deselect Answer Infinite supply High initial cost Non-polluting Sustainable None 9. Which of the following best describes the function of a solar collector? Deselect Answer To store solar energy To convert solar energy into electricity To absorb and transfer solar heat To reflect solar radiation None 10. The extraction of fossil fuels can lead to: Deselect Answer Renewable energy production Water pollution Reduced carbon emissions Sustainable energy use None 11. The best locations for wind farms are typically: Deselect Answer Urban areas Coastal regions Forested areas Mountain valleys None 12. Which of the following is a form of thermal energy storage? Deselect Answer Chemical batteries Pumped hydro storage Molten salt storage Flywheel storage None 13. Enhanced geothermal systems (EGS) differ from traditional geothermal systems by: Deselect Answer Using volcanic heat Drilling deeper into the Earth Relying on surface heat Using solar panels None 14. Solar water heaters work by: Deselect Answer Generating electricity Reflecting sunlight Absorbing solar heat Storing solar energy None 15. Concentrated solar power (CSP) systems generate electricity by: Deselect Answer Directly converting sunlight Using mirrors to focus sunlight Storing sunlight in batteries Using wind turbines None 16. A household installs a solar panel system with a peak power of 5 kW. If the average solar insolation (sunlight) is 4 kWh/m²/day and the system operates at 75% efficiency, calculate the total energy produced per day in kilowatt-hours (kWh). Deselect Answer 10 kWh 15 kWh 20 kWh 25 kWh None 17. A hydroelectric dam has a reservoir with a water flow rate of 600 cubic meters per second and a height of 120 meters. If the efficiency of the power generation is 85%, calculate the power output in megawatts (MW). (Use g = 9.8 m/s² for gravitational acceleration and the density of water = 1000 kg/m³) Deselect Answer 468 MW 578 MW 600 MW 800 MW None 18. Which process converts biomass into a gas that can be used for energy? Deselect Answer Combustion Gasification Electrolysis Fermentation None 19. Which of the following technologies can reduce the environmental impact of burning fossil fuels? Deselect Answer Solar panels Carbon capture and storage (CCS) Wind turbines Hydroelectric dams None 20. Which of the following is a byproduct of nuclear energy production? Deselect Answer Carbon dioxide Water vapor Radioactive waste Sulphur dioxide None 1 out of 20 Time's up
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