RETA CARO PASSED Exam Questions
and CORRECT Answers
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
and CORRECT Answers
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
