Exam 3: Refrigeration and Refrigerants

The ____________________ is referred to as a kinetic displacement compressor.

The evaporator can be thought of as a "heat sponge."

The condenser ____.

From a performance standpoint, a substitute for R-12 is ____________________.

If a cylinder of R-22 is moved from a 100°F truck body into an 80°F shop, the quantity of liquid refrigerant in the cylinder will remain the same.

An expansion valve is the pressure reducing device that controls the flow of liquid refrigerant into the evaporator.

The refrigerant vapor picks up additional heat as it flows from the evaporator to the compressor. The heat is picked up from the ____________________.

The ____________________ is another positive displacement compressor and is used for larger air conditioning and refrigeration applications.

The ____ are used to change the vapor to a liquid and the liquid form back into a vapor, the refrigeration cycle.

The evaporator in a refrigeration system ____.

The discharge gas from the compressor is a high pressure, high temperature, superheated vapor.

The boiling point of a refrigerant should be low enough at atmospheric pressure to keep the system pressure above 0 psig when operating at low temperatures.

The amount of heat a refrigerant contains with -40 degree F as the 0 heat content reference point is called ____________________.

When a refrigerant enters the compressor, it is a ____ and when it leaves the compressor, it is a ____.

The four (4) major components of a vapor compression refrigeration system are the compressor, condenser, evaporator, and ____________________.

What is the purpose of the metering device?

A ton of refrigeration is equal to ____.

Reciprocating compressors have ____.