Reta Caro Exam Practice Test Exam
(elaborations)CARO PRACTICE EXAM
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) | GRADED
A+ | NEW UPDATE 2026
Conduction is defined as heat energy that is - ✔✔ANSWER✔✔-moving through
a solid substance
What is the primary purpose of a refrigeration system ? - ✔✔ANSWER✔✔-
achieve and maintain a temperature
What is a hazard of trapping liquid ? - ✔✔ANSWER✔✔-A possible release
How much can the pressure of trapped liquid increase per degree Fahrenheit
of temperature increase - ✔✔ANSWER✔✔-100 to 150 psi
32 psia equals - ✔✔ANSWER✔✔-17.3 psig
, 0 ° F is equal to - ✔✔ANSWER✔✔--18 ° C
Why does the refrigerant in the condenser change state from vapor to liquid -
✔✔ANSWER✔✔-The refrigerant loses heat energy to the surrounding
environment
If a liquid is below its saturation temperature what is its condition ? -
✔✔ANSWER✔✔-Subcooled
What are the four necessary components of a mechanical refrigeration system
? - ✔✔ANSWER✔✔-expansion device , evaporator , compressor , condenser
Superheat is found at which points of a typical system ? - ✔✔ANSWER✔✔-The
compressor suction and compressor discharge line
What are the replacement blended refrigerants called ? - ✔✔ANSWER✔✔-An
azeotrope or zeotrope
What is one positive characteristic of halocarbon refrigerants ? -
✔✔ANSWER✔✔-They are usually not flammable
What is the primary reason for concern about HCFC- 22 concentration in an
engine room ? - ✔✔ANSWER✔✔-Oxygen deprivation
O psig is equal to - ✔✔ANSWER✔✔-14.7 psia
(elaborations)CARO PRACTICE EXAM
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) | GRADED
A+ | NEW UPDATE 2026
Conduction is defined as heat energy that is - ✔✔ANSWER✔✔-moving through
a solid substance
What is the primary purpose of a refrigeration system ? - ✔✔ANSWER✔✔-
achieve and maintain a temperature
What is a hazard of trapping liquid ? - ✔✔ANSWER✔✔-A possible release
How much can the pressure of trapped liquid increase per degree Fahrenheit
of temperature increase - ✔✔ANSWER✔✔-100 to 150 psi
32 psia equals - ✔✔ANSWER✔✔-17.3 psig
, 0 ° F is equal to - ✔✔ANSWER✔✔--18 ° C
Why does the refrigerant in the condenser change state from vapor to liquid -
✔✔ANSWER✔✔-The refrigerant loses heat energy to the surrounding
environment
If a liquid is below its saturation temperature what is its condition ? -
✔✔ANSWER✔✔-Subcooled
What are the four necessary components of a mechanical refrigeration system
? - ✔✔ANSWER✔✔-expansion device , evaporator , compressor , condenser
Superheat is found at which points of a typical system ? - ✔✔ANSWER✔✔-The
compressor suction and compressor discharge line
What are the replacement blended refrigerants called ? - ✔✔ANSWER✔✔-An
azeotrope or zeotrope
What is one positive characteristic of halocarbon refrigerants ? -
✔✔ANSWER✔✔-They are usually not flammable
What is the primary reason for concern about HCFC- 22 concentration in an
engine room ? - ✔✔ANSWER✔✔-Oxygen deprivation
O psig is equal to - ✔✔ANSWER✔✔-14.7 psia
