Renewable Energy Quiz 2

What is the primary characteristic of renewable energy?

• It can be used only once

• It is naturally replenished

• It is derived from fossil fuels

• It is always available in the form of electricity

Which of the following is NOT a renewable energy source?

• Solar energy

• Wind energy

• Coal

• Hydropower

What is the main factor determining the amount of electricity a hydropower plant can produce?

• The number of turbines

• The volume of water flow and elevation change

• The temperature of the water

• The amount of fish in the river

Which of the following statements about solar energy is true?

• Solar panels convert kinetic energy into electricity

• Solar energy is only available in desert regions

• Solar panels use semiconductor materials to convert sunlight into electricity

• Solar power plants generate energy by burning fossil fuels

What is the main disadvantage of hydroelectric power?

• It requires a lot of space to install

• It depends on weather conditions like droughts

• It produces a large amount of air pollution

• It cannot store energy for later use

What is the function of a yaw system in a wind turbine?

• To adjust the blade angles for maximum efficiency

• To store excess electricity for later use

• To rotate the turbine towards the wind

• To convert DC electricity to AC electricity

Which type of solar energy technology uses mirrors to concentrate sunlight?

• Photovoltaics (PV)

• Wind energy

• Concentrated Solar Power (CSP)

• Geothermal energy

Which of the following is an advantage of renewable energy sources?

• They are available in unlimited amounts

• They require little to no initial investment

• They are always more efficient than nonrenewable sources

• They produce greenhouse gases

Which type of turbine is used in large hydropower plants?

• Pelton Turbine

• Francis Turbine

• Wind Turbine

• Gas Turbine

What is the best location for a hydropower plant in Sri Lanka?

• Central Highlands

• Coastal regions

• Intermediate Plains

• Urban areas