RAC 40 QUIZ 3 REVIEW QUESTIONS
COMPLETE WITH VERIFIED ANSWERS
\.The _____ compressor is another positive displacement compressor
and is used for larger air conditioning and refrigeration applications. -
ANSWERS✔-Screw Compressor
\.The four (4) major components of a vapor compression refrigeration
system are the compressor, condenser, evaporator, and ________
______. - ANSWERS✔-Metering device
\.The amount of heat a refrigerant contains with -40F as the 0 heat
content reference point is called - ANSWERS✔-Enthalpy
\.From a performance standpoint, a substitute for R-12 is - ANSWERS✔-
R-134A
\.The ___________ __________ is referred to as a kinetic displacement
compressor. - ANSWERS✔-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 -
ANSWERS✔-Suction line
\.What is the purpose of the metering device? - ANSWERS✔-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? - ANSWERS✔-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. -
ANSWERS✔-Condenser
\.Abort heat from the system - ANSWERS✔-Evaporator
\.Is the heart of the refrigeration system - ANSWERS✔-Compressor
\.A valve or small fixed-size tubing or orifice that meters liquid
refrigerant into the evaporator - ANSWERS✔-Metering device
\.R-502 - ANSWERS✔-Orchid
COMPLETE WITH VERIFIED ANSWERS
\.The _____ compressor is another positive displacement compressor
and is used for larger air conditioning and refrigeration applications. -
ANSWERS✔-Screw Compressor
\.The four (4) major components of a vapor compression refrigeration
system are the compressor, condenser, evaporator, and ________
______. - ANSWERS✔-Metering device
\.The amount of heat a refrigerant contains with -40F as the 0 heat
content reference point is called - ANSWERS✔-Enthalpy
\.From a performance standpoint, a substitute for R-12 is - ANSWERS✔-
R-134A
\.The ___________ __________ is referred to as a kinetic displacement
compressor. - ANSWERS✔-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 -
ANSWERS✔-Suction line
\.What is the purpose of the metering device? - ANSWERS✔-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? - ANSWERS✔-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. -
ANSWERS✔-Condenser
\.Abort heat from the system - ANSWERS✔-Evaporator
\.Is the heart of the refrigeration system - ANSWERS✔-Compressor
\.A valve or small fixed-size tubing or orifice that meters liquid
refrigerant into the evaporator - ANSWERS✔-Metering device
\.R-502 - ANSWERS✔-Orchid
