RAC 40 QUIZ 3 REVIEW | QUESTIONS AND ANSWERS | 2026 UPDATE | RATED 100%
CORRECT
The _____ compressor is another positive displacement compressor and is used for larger air
conditioning and refrigeration applications. - (answer)Screw Compressor
The four (4) major components of a vapor compression refrigeration system are the compressor,
condenser, evaporator, and ________ ______. - (answer)Metering device
The amount of heat a refrigerant contains with -40F as the 0 heat content reference point is called -
(answer)Enthalpy
From a performance standpoint, a substitute for R-12 is - (answer)R-134A
The ___________ __________ is referred to as a kinetic displacement compressor. - (answer)Centrifugal
Compressor
The refrigerant vapor picks up additional heat as it flows from the evaporator to the compressor. The
heat is picked up from the - (answer)Suction line
What is the purpose of the metering device? - (answer)Meters the flow of refrigerant entering the
evaporator, reduces the boiling point to create a pressure/temperature drop
When the refrigerant leaves the metering device, it is not 100% liquid. Why? - (answer)Because flash gas
occurs and causes the 100% liquid to turn into 25% vapor and 75% liquid.
Rejects both sensible and latent heat from the refrigeration system. - (answer)Condenser
Abort heat from the system - (answer)Evaporator
Is the heart of the refrigeration system - (answer)Compressor
, RAC 40 QUIZ 3 REVIEW | QUESTIONS AND ANSWERS | 2026 UPDATE | RATED 100%
CORRECT
A valve or small fixed-size tubing or orifice that meters liquid refrigerant into the evaporator -
(answer)Metering device
R-502 - (answer)Orchid
R-12 - (answer)White
R-717 - (answer)Silver
R-11 - (answer)Orange
R-114 - (answer)Dark Blue
R-134a - (answer)Light Blue
R-113 - (answer)Purple
R-500 - (answer)Yellow Orange
R-22 - (answer)Green
Good ventilation is important when working around refrigeration equipment because modern
refrigerants ______. - (answer)Are heavier than air and may displace the oxygen around you
The __________ relationship correlates the vapor pressure and the boiling point of water and is the
basis for controlling the cooling system's temperatures. - (answer)Temperature/pressure
CORRECT
The _____ compressor is another positive displacement compressor and is used for larger air
conditioning and refrigeration applications. - (answer)Screw Compressor
The four (4) major components of a vapor compression refrigeration system are the compressor,
condenser, evaporator, and ________ ______. - (answer)Metering device
The amount of heat a refrigerant contains with -40F as the 0 heat content reference point is called -
(answer)Enthalpy
From a performance standpoint, a substitute for R-12 is - (answer)R-134A
The ___________ __________ is referred to as a kinetic displacement compressor. - (answer)Centrifugal
Compressor
The refrigerant vapor picks up additional heat as it flows from the evaporator to the compressor. The
heat is picked up from the - (answer)Suction line
What is the purpose of the metering device? - (answer)Meters the flow of refrigerant entering the
evaporator, reduces the boiling point to create a pressure/temperature drop
When the refrigerant leaves the metering device, it is not 100% liquid. Why? - (answer)Because flash gas
occurs and causes the 100% liquid to turn into 25% vapor and 75% liquid.
Rejects both sensible and latent heat from the refrigeration system. - (answer)Condenser
Abort heat from the system - (answer)Evaporator
Is the heart of the refrigeration system - (answer)Compressor
, RAC 40 QUIZ 3 REVIEW | QUESTIONS AND ANSWERS | 2026 UPDATE | RATED 100%
CORRECT
A valve or small fixed-size tubing or orifice that meters liquid refrigerant into the evaporator -
(answer)Metering device
R-502 - (answer)Orchid
R-12 - (answer)White
R-717 - (answer)Silver
R-11 - (answer)Orange
R-114 - (answer)Dark Blue
R-134a - (answer)Light Blue
R-113 - (answer)Purple
R-500 - (answer)Yellow Orange
R-22 - (answer)Green
Good ventilation is important when working around refrigeration equipment because modern
refrigerants ______. - (answer)Are heavier than air and may displace the oxygen around you
The __________ relationship correlates the vapor pressure and the boiling point of water and is the
basis for controlling the cooling system's temperatures. - (answer)Temperature/pressure
