RETA CARO EXAM PRACTICE TEST
QUESTIONS WITH 100% CORRECT
ANSWERS
Conduction is defined as heat energy that is - ✔✔moving through a solid substance
What is the primary purpose of a refrigeration system ? - ✔✔achieve and maintain a
temperature
What is a hazard of trapping liquid ? - ✔✔A possible release
How much can the pressure of trapped liquid increase per degree Fahrenheit of
temperature increase - ✔✔100 to 150 psi
Mechanical refrigeration is a series of steps that - ✔✔moves heat energy from a space
or object to an area where it can do no harm
©morren 2025/2026. Year published 2026.
, How does the refrigeration compressor maintain the temperature in the system
evaporators ? - ✔✔Drawing out vaporized refrigerant at a rate to maintain the desired
evaporating pressure
Which natural refrigerant is considered to be non- flammable - ✔✔Carbon Dioxide
Heat energy always flows - ✔✔from an object at a higher temperature to an object at a
lower temperature
32 psia equals - ✔✔17.3 psig
0 ° F is equal to - ✔✔-18 ° C
Why does the refrigerant in the condenser change state from vapor to liquid - ✔✔The
refrigerant loses heat energy to the surrounding environment
If a liquid is below its saturation temperature what is its condition ? - ✔✔Subcooled
©morren 2025/2026. Year published 2026.
QUESTIONS WITH 100% CORRECT
ANSWERS
Conduction is defined as heat energy that is - ✔✔moving through a solid substance
What is the primary purpose of a refrigeration system ? - ✔✔achieve and maintain a
temperature
What is a hazard of trapping liquid ? - ✔✔A possible release
How much can the pressure of trapped liquid increase per degree Fahrenheit of
temperature increase - ✔✔100 to 150 psi
Mechanical refrigeration is a series of steps that - ✔✔moves heat energy from a space
or object to an area where it can do no harm
©morren 2025/2026. Year published 2026.
, How does the refrigeration compressor maintain the temperature in the system
evaporators ? - ✔✔Drawing out vaporized refrigerant at a rate to maintain the desired
evaporating pressure
Which natural refrigerant is considered to be non- flammable - ✔✔Carbon Dioxide
Heat energy always flows - ✔✔from an object at a higher temperature to an object at a
lower temperature
32 psia equals - ✔✔17.3 psig
0 ° F is equal to - ✔✔-18 ° C
Why does the refrigerant in the condenser change state from vapor to liquid - ✔✔The
refrigerant loses heat energy to the surrounding environment
If a liquid is below its saturation temperature what is its condition ? - ✔✔Subcooled
©morren 2025/2026. Year published 2026.
