RETA CARO Exam with all Correct & 100% Verified
Answers |Guaranteed to Pass
What is the purpose of a refrigeration system? ✔Correct Answer-To maintain a temperature
Operators must keep refrigeration systems operating safely and efficiently. Which of the
following best describes the areas of required knowledge for this to be possible? ✔Correct
Answer-Basic physical principles, interpretation of information from temperature and pressure
gauges, basic operating principles.
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.
Heat energy always flows: ✔Correct Answer-from an object at a higher temperature to an
object at a lower temperature
Sensible heat: ✔Correct Answer-is heat energy that causes a change in temperature but does
not cause a change of state.
Latent heat: ✔Correct Answer-is heat energy that causes a change of state but does not cause
a change in temperature.
Which of the answers below is an example of heat transfer by convection? ✔Correct Answer-
Warm air moving over an object.
How does the refrigeration technician/operator know what the conditions are within a
refrigeration system? ✔Correct Answer-By using his knowledge of system basic operating
principles to evaluate temperature and pressure readings.
What is the scale used to measure Fahrenheit temperature absolute? ✔Correct Answer-
Rankine
Which of the following is used to measure the quantity of heat energy? ✔Correct Answer-
British Thermal Units (BTUS) or calories.
When calculating the BTUS that have to be removed to cool a substance, what combination of
the following is used? ✔Correct Answer-pounds of substance, temperature difference,
specific heat
Latent heat of vaporization ✔Correct Answer-is the heat energy required to cause a liquid to
become a vapor.
Answers |Guaranteed to Pass
What is the purpose of a refrigeration system? ✔Correct Answer-To maintain a temperature
Operators must keep refrigeration systems operating safely and efficiently. Which of the
following best describes the areas of required knowledge for this to be possible? ✔Correct
Answer-Basic physical principles, interpretation of information from temperature and pressure
gauges, basic operating principles.
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.
Heat energy always flows: ✔Correct Answer-from an object at a higher temperature to an
object at a lower temperature
Sensible heat: ✔Correct Answer-is heat energy that causes a change in temperature but does
not cause a change of state.
Latent heat: ✔Correct Answer-is heat energy that causes a change of state but does not cause
a change in temperature.
Which of the answers below is an example of heat transfer by convection? ✔Correct Answer-
Warm air moving over an object.
How does the refrigeration technician/operator know what the conditions are within a
refrigeration system? ✔Correct Answer-By using his knowledge of system basic operating
principles to evaluate temperature and pressure readings.
What is the scale used to measure Fahrenheit temperature absolute? ✔Correct Answer-
Rankine
Which of the following is used to measure the quantity of heat energy? ✔Correct Answer-
British Thermal Units (BTUS) or calories.
When calculating the BTUS that have to be removed to cool a substance, what combination of
the following is used? ✔Correct Answer-pounds of substance, temperature difference,
specific heat
Latent heat of vaporization ✔Correct Answer-is the heat energy required to cause a liquid to
become a vapor.
