Reta Caro Exam Practice Test
Questions and Answers 2026
Conduction is defined as heat energy that is -
correct answer ✅moving through a solid substance
What is the primary purpose of a refrigeration system ? -
correct answer ✅achieve and maintain a temperature
What is a hazard of trapping liquid ? -
correct answer ✅A possible release
How much can the pressure of trapped liquid increase per degree
Fahrenheit of temperature increase -
correct answer ✅100 to 150 psi
Mechanical refrigeration is a series of steps that -
correct answer ✅moves heat energy from a space or object to an
area where it can do no harm
How does the refrigeration compressor maintain the temperature
in the system evaporators ? -
correct answer ✅Drawing out vaporized refrigerant at a rate to
maintain the desired evaporating pressure
,Reta Caro Exam Practice Test
Questions and Answers 2026
Which natural refrigerant is considered to be non- flammable -
correct answer ✅Carbon Dioxide
Heat energy always flows -
correct answer ✅from an object at a higher temperature to an
object at a lower temperature
32 psia equals -
correct answer ✅17.3 psig
0 ° F is equal to -
correct answer ✅-18 ° C
Why does the refrigerant in the condenser change state from vapor
to liquid -
correct answer ✅The refrigerant loses heat energy to the
surrounding environment
If a liquid is below its saturation temperature what is its condition ?
-
correct answer ✅Subcooled
, Reta Caro Exam Practice Test
Questions and Answers 2026
What are the four necessary components of a mechanical
refrigeration system ? -
correct answer ✅expansion device , evaporator , compressor ,
condenser
Superheat is found at which points of a typical system ? -
correct answer ✅The compressor suction and compressor
discharge line
What are the replacement blended refrigerants called ? -
correct answer ✅An azeotrope or zeotrope
What is one positive characteristic of halocarbon refrigerants ? -
correct answer ✅They are usually not flammable
What is the primary reason for concern about HCFC- 22
concentration in an engine room ? -
correct answer ✅Oxygen deprivation
O psig is equal to -
correct answer ✅14.7 psia
Questions and Answers 2026
Conduction is defined as heat energy that is -
correct answer ✅moving through a solid substance
What is the primary purpose of a refrigeration system ? -
correct answer ✅achieve and maintain a temperature
What is a hazard of trapping liquid ? -
correct answer ✅A possible release
How much can the pressure of trapped liquid increase per degree
Fahrenheit of temperature increase -
correct answer ✅100 to 150 psi
Mechanical refrigeration is a series of steps that -
correct answer ✅moves heat energy from a space or object to an
area where it can do no harm
How does the refrigeration compressor maintain the temperature
in the system evaporators ? -
correct answer ✅Drawing out vaporized refrigerant at a rate to
maintain the desired evaporating pressure
,Reta Caro Exam Practice Test
Questions and Answers 2026
Which natural refrigerant is considered to be non- flammable -
correct answer ✅Carbon Dioxide
Heat energy always flows -
correct answer ✅from an object at a higher temperature to an
object at a lower temperature
32 psia equals -
correct answer ✅17.3 psig
0 ° F is equal to -
correct answer ✅-18 ° C
Why does the refrigerant in the condenser change state from vapor
to liquid -
correct answer ✅The refrigerant loses heat energy to the
surrounding environment
If a liquid is below its saturation temperature what is its condition ?
-
correct answer ✅Subcooled
, Reta Caro Exam Practice Test
Questions and Answers 2026
What are the four necessary components of a mechanical
refrigeration system ? -
correct answer ✅expansion device , evaporator , compressor ,
condenser
Superheat is found at which points of a typical system ? -
correct answer ✅The compressor suction and compressor
discharge line
What are the replacement blended refrigerants called ? -
correct answer ✅An azeotrope or zeotrope
What is one positive characteristic of halocarbon refrigerants ? -
correct answer ✅They are usually not flammable
What is the primary reason for concern about HCFC- 22
concentration in an engine room ? -
correct answer ✅Oxygen deprivation
O psig is equal to -
correct answer ✅14.7 psia
