As the refrigerant temperature drops during the desuperheating phase of the refrigeration cycle, the refrigerant pressure:
A) Remains the same.
B) Increases due to the inverse relationship between temperature and pressure.
C) Drops also due to the temperature drop.
D) There is no definite relationship between refrigerant pressure and refrigerant temperature.
[Ques. 2] The factors that must be considered when sizing the discharge line are:
A) Pressure drop, temperature rise, velocity, and oil viscosity.
B) Temperature rise and refrigerant viscosity.
C) Temperature rise and oil viscosity.
D) Pressure drop and velocity.
[Ques. 3] All of the liquid refrigerant has vaporized by:
A) The beginning of the condenser. B) The beginning of the evaporator.
C) The end of the evaporator. D) The end of the condenser.
[Ques. 4] Besides distributing the refrigerant evenly, a refrigerant distributor also:
A) Creates a pressure drop across the distributor.
B) Agitates the refrigerant to flash off as much as possible.
C) Filters the refrigerant.
D) Lubricates the system by infusing small quantities of refrigerant oil.
[Ques. 5] When the refrigerant passes through the metering device, some of it starts to flash from a liquid to a gas because:
A) The pressure has increased above the saturation point.
B) A large amount of heat is added to the refrigerant in the metering device.
C) Of the turbulators located near the end of the metering device.
D) The pressure has dropped to the saturation point.
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