env ppt 1 2-2

What is the primary function of a heat pump?

• To cool down a building

• To heat up a building

• To generate electricity

• To purify air

What does the refrigerant in a heat pump do when heated?

• Turns into a solid

• Turns into a gas

• Turns into a plasma

• Turns into a liquid

What role does the compressor play in a heat pump?

• It cools the refrigerant

• It compresses the refrigerant

• It filters the refrigerant

• It evaporates the refrigerant

What happens to the refrigerant after it releases heat to the system?

• It evaporates

• It solidifies

• It changes back into a liquid

• It remains a gas

What is the role of the condenser in the refrigeration process?

• To compress the refrigerant

• To evaporate the refrigerant

• To condense the refrigerant

• To expand the refrigerant

Which component in the refrigeration process is responsible for compressing the refrigerant?

• Condenser

• Evaporator

• Compressor

• Expansion valve

In the refrigeration process, what is the function of the evaporator?

• To condense the refrigerant

• To evaporate the refrigerant

• To compress the refrigerant

• To expand the refrigerant

What is the purpose of the expansion valve in the refrigeration cycle?

• To compress the refrigerant

• To condense the refrigerant

• To expand the refrigerant

• To evaporate the refrigerant

What is the only energy required to power the system in a pump?

• Energy for the compressor

• Energy for the heat source

• Energy for the refrigerant

• Energy for the cooling system

What happens to the efficiency of the system when the difference between the refrigerant and the heat source increases?

• The efficiency decreases

• The efficiency remains the same

• The efficiency increases

• The efficiency becomes zero