Thermodynamics Quiz

In a refrigerator, which component is labeled as number 1 in the diagram?

• Condenser coils

• Expansion Valve

• Compressor

• Evaporator Coils

Which of the following processes is crucial for the refrigeration cycle?

• Evaporation

• Condensation

• Sublimation

• Melting

What happens to the pressure of the liquid when it enters the expansion valve in a refrigerator?

• It remains the same

• It is rapidly lowered

• It is increased

• It fluctuates

What does the cold vapor do inside the refrigerator?

• Releases heat energy

• Absorbs heat energy

• Remains unchanged

• Increases pressure

What is the primary purpose of the refrigerant in this system?

• To provide energy

• To absorb and release heat

• To increase air pressure

• To cool the compressor

What is a similarity between the cooling and heating processes?

• Both are irreversible processes.

• Both do not require a temperature difference.

• Both are reversible processes.

• Both do not transfer heat.

What happens to the liquid in the pipes of the internal heat exchanger (IHE) during summer?

• It remains liquid and cools down.

• It evaporates to a gas due to high air temperature.

• It solidifies and stops flowing.

• It turns into ice.

What is the primary difference in the operation of the heat exchange system between summer and winter?

• The direction of fluid flow changes.

• The type of fluid used changes.

• The system stops working in winter.

• The system stops working in summer.