Introduction to Renewable Energy Technologies

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Question 1
Which renewable energy technology converts sunlight directly into electricity?

(A) Hydroelectric turbines

(B) Solar photovoltaic panels

(D) Wind turbines

Question 2
How do wind turbines generate electricity?

(A) They generate electricity by heating air to create steam.

(B) They use rotating blades to convert wind's kinetic energy into mechanical energy which is then transformed into electricity.

(D) They convert wind's pressure differences directly into electrical energy without mechanical movement.

Question 3
How does a typical hydroelectric power plant generate electricity?

(A) It harnesses wave energy from water to generate electrical energy.

(B) It uses the gravitational potential energy of falling water to spin turbines connected to generators.

(C) It converts the kinetic energy of flowing water directly into electricity using magnetic fields, without the need for turbines.

(D) It uses water to cool nuclear reactions that produce steam for turbines.

Question 4
In a small community with abundant sunlight but minimal wind and water flow, which renewable energy source would likely be the most feasible?

(A) Solar thermal power systems designed for high-temperature industrial processes

(B) Solar energy using photovoltaic panels

(D) Hydroelectric power using dam construction

Question 5
What is one major advantage of using renewable energy sources such as solar, wind, and hydro compared to traditional fossil fuels?

(A) They are unlimited and can produce energy without any environmental impact.

(B) They require no maintenance or initial investment costs.

(D) They completely eliminate all pollution concerns in every aspect of life.

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