Aux 2 Unit 8 Quiz 4

Correct Answer:
C) It absorbs heat from the surroundings and evaporates into a vapor

Explanation:
In the evaporator, the low-pressure liquid refrigerant absorbs heat from its surroundings, causing it to evaporate and turn into a low-pressure vapor.

Correct Answer:
B) Between the condenser and evaporator

Explanation:
The expansion valve is positioned between the condenser and evaporator to regulate the flow of refrigerant into the evaporator at the proper pressure and temperature.

Correct Answer:
C) It removes the heat absorbed in the evaporator and converts the refrigerant to a liquid

Explanation:
The condenser's function is to expel the heat absorbed by the refrigerant during the evaporation process and convert the high-pressure vapor into a liquid.

Correct Answer:
C) To compress the low-pressure refrigerant vapor and increase its pressure and temperature

Explanation:
The compressor's role is to take low-pressure refrigerant vapor from the evaporator and compress it to a high pressure and temperature, preparing it for heat release in the condenser.

Correct Answer:
C) It releases heat and condenses into a liquid

Explanation:
In the condenser, the refrigerant releases heat to the surroundings, allowing it to condense from a vapor to a high-pressure liquid.

Correct Answer:
B) To the condenser

Explanation:
The high-pressure, high-temperature refrigerant vapor is sent to the condenser, where it releases heat and condenses into a liquid.

Correct Answer:
C) To reduce the pressure and temperature of the refrigerant before it enters the evaporator

Explanation:
The expansion valve reduces the pressure and temperature of the refrigerant, allowing it to become a low-temperature mixture of liquid and vapor, ready to absorb heat in the evaporator.

Correct Answer:
D) It absorbs heat, providing the cooling effect needed in the system

Explanation:
The evaporator is where the cooling effect takes place as the refrigerant absorbs heat from the environment or space being cooled, evaporating in the process.