FREE SE Engr. Solar Thermal Energy Systems Questions and Answers

Question 1

What is the primary function of a solar thermal collector?

Accepted Answer

Convert sunlight into heat

Answer

Generate electricity

Answer

Store energy in batteries

Answer

Reflect sunlight away from buildings

Question 2

Which type of solar thermal system is commonly used for residential water heating?

Accepted Answer

Active solar water heating

Answer

Passive solar water heating

Answer

Concentrated solar power

Answer

Photovoltaic thermal hybrid

Question 3

What is the main advantage of an evacuated tube solar collector over a flat-plate collector?

Accepted Answer

More efficient in cold climates

Answer

Lower initial cost

Answer

Easier installation

Answer

Requires less maintenance

Question 4

Which working fluid is commonly used in solar thermal power plants?

Accepted Answer

Molten salts

Answer

Water

Answer

Air

Answer

Liquid nitrogen

Question 5

What is the role of a heat exchanger in a solar thermal system?

Accepted Answer

Transfer heat from the solar fluid to water

Answer

Increase the system's electricity production

Answer

Convert solar energy into chemical energy

Answer

Cool down the solar panels

Question 6

Which component in a solar thermal system helps store heat for use when sunlight is not available?

Accepted Answer

Thermal storage tank

Answer

Solar inverter

Answer

Heat exchanger

Answer

Expansion valve