RETA INDUSTRIAL REFRIGERATION
CHAPTER 1 EXAM QUESTIONS AND
ANSWERS
what is the purpose of a refrigeration system? -
correct answer ✅to maintain the temperature
operators must keep refrigeration systems operating safely and
efficiently. Which of the following best describes the area 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 in state.
, RETA INDUSTRIAL REFRIGERATION
CHAPTER 1 EXAM QUESTIONS AND
ANSWERS
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 rising and cold air falling.
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 the temperature and pressure readings.
what is the scale used to measure fahrenheit temperatures
absolute? -
correct answer ✅Rankin
which of the following is used to measure the quantity of heat
energy -
correct answer ✅British thermal units BTUs or calories
CHAPTER 1 EXAM QUESTIONS AND
ANSWERS
what is the purpose of a refrigeration system? -
correct answer ✅to maintain the temperature
operators must keep refrigeration systems operating safely and
efficiently. Which of the following best describes the area 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 in state.
, RETA INDUSTRIAL REFRIGERATION
CHAPTER 1 EXAM QUESTIONS AND
ANSWERS
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 rising and cold air falling.
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 the temperature and pressure readings.
what is the scale used to measure fahrenheit temperatures
absolute? -
correct answer ✅Rankin
which of the following is used to measure the quantity of heat
energy -
correct answer ✅British thermal units BTUs or calories
