1. What type of energy is obtained directly from sunlight?
(A) Wind energy
(B) Geothermal energy
(C) Solar energy
(D) Hydro energy
2. What device is used to convert sunlight into electricity?
(A) Wind turbine
(B) Solar panel
(C) Generator
(D) Condenser
3. What does PV stand for in solar energy systems?
(A) Photovoltaic
(B) Pressure Valve
(C) Power Volume
(D) Photo Voltage
4. Which gas is NOT produced during the generation of solar energy?
(A) Carbon dioxide
(B) Oxygen
(C) Nitrogen oxide
(D) None of the above
5. What is the source of wind energy?
(A) Rotation of the earth
(B) Sun’s heating of the atmosphere
(C) Gravitational pull
(D) Movement of tectonic plates
6. Wind turbines convert wind energy into what form?
(A) Thermal energy
(B) Chemical energy
(C) Nuclear energy
(D) Mechanical energy
7. Which country leads the world in wind energy capacity as of 2024?
(A) Germany
(B) India
(C) China
(D) USA
8. The most suitable location for wind farms is:
(A) Deserts
(B) Coastal areas
(C) Forests
(D) Urban centers
9. What is hydroelectric power generated from?
(A) Moving water
(B) Solar radiation
(C) Wind flow
(D) Geothermal heat
10. What structure is commonly used to generate hydroelectric power?
(A) Canal
(B) Dam
(C) Tunnel
(D) Tower
11. Which is the largest hydroelectric dam in the world by capacity?
(A) Hoover Dam
(B) Itaipu Dam
(C) Three Gorges Dam
(D) Aswan Dam
12. Geothermal energy is primarily obtained from:
(A) Ocean currents
(B) Earth’s internal heat
(C) Solar flares
(D) Wind
13. Which country is known for using geothermal energy extensively?
(A) Iceland
(B) Pakistan
(C) Brazil
(D) Nigeria
14. What is a common use of geothermal energy?
(A) Street lighting
(B) Heating buildings
(C) Fuel for vehicles
(D) Air conditioning
15. Renewable energy sources are generally:
(A) Non-recyclable
(B) Finite
(C) Sustainable
(D) Polluting
16. Which of the following is NOT a form of renewable energy?
(A) Solar
(B) Wind
(C) Geothermal
(D) Natural gas
17. The unit of solar panel output is measured in:
(A) Joules
(B) Volts
(C) Watts
(D) Calories
18. The process of converting sunlight to electricity in solar cells is based on:
(A) Reflection
(B) Photovoltaic effect
(C) Thermal heating
(D) Osmosis
19. The main component in most solar panels is:
(A) Copper
(B) Lead
(C) Silicon
(D) Iron
20. Wind turbines are usually installed:
(A) In open and elevated areas
(B) On rooftops
(C) Underground
(D) In caves
21. What is the major environmental concern related to hydroelectric dams?
(A) Air pollution
(B) Deforestation and habitat destruction
(C) Ozone depletion
(D) Soil salinity
22. Which form of renewable energy is most predictable in output?
(A) Wind
(B) Solar
(C) Geothermal
(D) Hydro
23. Which country is the largest producer of solar energy?
(A) Germany
(B) USA
(C) India
(D) China
24. What is the main limitation of solar energy?
(A) High carbon emissions
(B) Only works at night
(C) Depends on sunlight availability
(D) Expensive to install
25. The world's first country to use 100% renewable energy for electricity for a few consecutive days was:
(A) Bhutan
(B) Costa Rica
(C) Norway
(D) Kenya
26. The kinetic energy of flowing water is used in:
(A) Geothermal plants
(B) Solar panels
(C) Wind turbines
(D) Hydropower plants
27. Binary cycle power plants are associated with which energy source?
(A) Wind
(B) Solar
(C) Geothermal
(D) Hydro
28. A solar farm is:
(A) A place that grows solar crops
(B) A facility with many solar panels
(C) A government solar office
(D) A type of wind farm
29. What is net metering in solar power?
(A) Government tax for solar users
(B) Solar panel rental policy
(C) Battery efficiency measure
(D) Selling excess power back to the grid
30. The most significant factor affecting wind turbine placement is:
(A) Temperature
(B) Humidity
(C) Wind speed
(D) Rainfall
31. What is an anemometer used for in wind energy?
(A) Measuring sunlight
(B) Measuring wind speed
(C) Storing energy
(D) Monitoring pollution
32. The capacity factor of a renewable energy source refers to:
(A) Its battery size
(B) Its cost
(C) Its actual output vs. its maximum output
(D) Its environmental impact
33. The energy stored in dams is a form of:
(A) Chemical energy
(B) Gravitational potential energy
(C) Nuclear energy
(D) Electrical energy
34. Which renewable energy system uses mirrors to focus sunlight?
(A) Photovoltaic system
(B) Hybrid inverter
(C) Solar heater
(D) Concentrated solar power
35. One major drawback of wind turbines is:
(A) Noise pollution
(B) Excessive CO₂ emission
(C) Lack of renewable input
(D) High fuel cost
36. Which is the cleanest form of renewable energy?
(A) Coal
(B) Oil
(C) Solar
(D) Diesel
37. The term "green energy" refers to:
(A) Nuclear energy
(B) Renewable and environmentally friendly energy
(C) Fossil fuels
(D) Chemical fuels
38. What happens when wind speed is too high for turbines?
(A) They operate faster
(B) They generate more electricity
(C) They shut down to prevent damage
(D) They break
39. Which form of renewable energy can be used 24/7 regardless of weather?
(A) Wind
(B) Solar
(C) Biomass
(D) Geothermal
40. What is the function of an inverter in a solar system?
(A) Convert DC to AC
(B) Increase voltage
(C) Store energy
(D) Cool the panel
41. What is biomass energy derived from?
(A) Sunlight
(B) Organic materials
(C) Wind
(D) Water
42. The major greenhouse gas reduced by using renewable energy is:
(A) Hydrogen
(B) Nitrogen
(C) Methane
(D) Carbon dioxide
43. What is a major challenge of renewable energy integration in grids?
(A) High pollution
(B) Fuel shortages
(C) Variability of supply
(D) Lack of sunlight
44. What is a smart grid?
(A) A grid used in AI applications
(B) An outdated electricity system
(C) An electricity network using digital communication
(D) A military energy system
45. A wind turbine typically has how many blades?
(A) One
(B) Two
(C) Four
(D) Three
46. Solar energy is classified as what type of energy source?
(A) Non-renewable
(B) Renewable
(C) Fossil-based
(D) Chemical
47. The first country to make wind energy a major national source was:
(A) Denmark
(B) Japan
(C) Russia
(D) France
48. Ocean thermal energy conversion is based on:
(A) Salinity difference
(B) Temperature difference between surface and deep water
(C) Wind speed
(D) Solar panels
49. Which energy source is best for remote areas without a power grid?
(A) Coal
(B) Diesel
(C) Solar
(D) Gas
50. Renewable energy helps in reducing:
(A) Employment
(B) Carbon emissions
(C) Rainfall
(D) River flow