Question 1:
Which of the following renewable energy sources is commonly used in wind power plants?
Explanation: The correct answer is C) Wind energy. Wind power plants utilize the kinetic energy of the wind to generate electricity. Large wind turbines with rotating blades capture the wind's energy and convert it into mechanical energy, which is then used to generate electrical energy through a generator.
Question 2:
Which of the following renewable energy sources is used in a solar power plant?
Explanation: The correct answer is B) Solar energy. Solar power plants use photovoltaic (PV) panels or concentrated solar power (CSP) systems to capture the sun's energy and convert it into electricity. PV panels directly convert sunlight into electricity using semiconductors, while CSP systems use mirrors or lenses to concentrate sunlight to produce heat, which drives a turbine connected to a generator.
Question 3:
Which renewable energy source is commonly used in hydroelectric power plants?
Explanation: The correct answer is D) Water energy. Hydroelectric power plants generate electricity by utilizing the potential energy of water stored in reservoirs. The water is released, and its flow drives turbines, which are connected to generators that produce electrical energy. This process harnesses the kinetic energy of moving water to generate electricity.
Question 4:
Which of the following renewable energy sources is used in a biomass power plant?
Explanation: The correct answer is C) Biomass energy. Biomass power plants generate electricity by burning organic materials, such as wood, crop residues, or agricultural waste. The combustion process releases heat, which is then used to produce steam, driving a turbine connected to a generator. Biomass power plants utilize the energy stored in plant and animal matter to generate renewable electricity.
Question 5:
Which of the following renewable energy sources is used in a geothermal power plant?
Explanation: The correct answer is C) Geothermal energy. Geothermal power plants harness the heat energy from the Earth's internal heat to generate electricity. These plants tap into naturally occurring hot water or steam reservoirs beneath the Earth's surface. The steam is then used to drive a turbine connected to a generator, producing electricity.
Broad Categories