The metering device changes high-pressure liquid into a
A) low-pressure liquid.
B) high-pressure vapor.
C) low-pressure vapor.
D) Any of the above, depending on the outside air temperature.

Question

Quizplus · Accepted Answer

The function of the metering device is to decrease the pressure of the high-pressure liquid refrigerant as it enters the evaporator. This causes the refrigerant to expand, which in turn causes the refrigerant to cool down. The metering device is designed to decrease the pressure of the liquid refrigerant gradually so that the refrigerant can evaporate completely in the evaporator. Therefore, the correct choice is A) low-pressure liquid.

The Metering Device Changes High-Pressure Liquid into a