RETA Chapter 1 Exam Questions &
Answers (Grade A+)
The primary purpose of a refrigeration system is
A. To freeze food
B. To cool buildings
C. To preserve food
D. To maintain a temperature -
correct answer ✅D. To maintain a temperature
Operators must keep refrigeration systems operating safely and
efficiently. Which of the following best describes the required
knowledge for this to be possible? -
correct answer ✅A. Basic physical principles, interprtaetion of
information from temperature and pressure gauges, and basic
operating principles.
Mechanical refrigeration is a series of steps that
A. moves heat energy from a space or object to an area where it
can do no harm.
B. adds cold to a space or object
C. transforms heat energy into cold energy to reduce the
temperature of the area to be cooled
D. utilizies the cooling effect of compressing a gas to reduce the
temperature in a space or object -
, RETA Chapter 1 Exam Questions &
Answers (Grade A+)
correct answer ✅A. moves heat energy from a space or object to
an area where it can do no harm.
Heat energy always flows
A. from a substance with more heat energy (measured in BTU's) to
a substance with less heat energy (measured in BTU's)
B. regardless of temperature
C. from an object at a higher temperature to an object at a lower
temperature
D. from a liquid to a vapor -
correct answer ✅C. from an object at a higher temperature to an
object at a lower temperature
Sensible heat
A. is measured using a pressure gauge
B. is always between 32 and 212 degrees F
C. is heat energy that causes a change in state, but does not cause a
change in temperature
D. is heat energy that causes a change in temperature, but does not
cause a change in state -
correct answer ✅D. is heat energy that causes a change in
temperature, but does not cause a change in state
Answers (Grade A+)
The primary purpose of a refrigeration system is
A. To freeze food
B. To cool buildings
C. To preserve food
D. To maintain a temperature -
correct answer ✅D. To maintain a temperature
Operators must keep refrigeration systems operating safely and
efficiently. Which of the following best describes the required
knowledge for this to be possible? -
correct answer ✅A. Basic physical principles, interprtaetion of
information from temperature and pressure gauges, and basic
operating principles.
Mechanical refrigeration is a series of steps that
A. moves heat energy from a space or object to an area where it
can do no harm.
B. adds cold to a space or object
C. transforms heat energy into cold energy to reduce the
temperature of the area to be cooled
D. utilizies the cooling effect of compressing a gas to reduce the
temperature in a space or object -
, RETA Chapter 1 Exam Questions &
Answers (Grade A+)
correct answer ✅A. moves heat energy from a space or object to
an area where it can do no harm.
Heat energy always flows
A. from a substance with more heat energy (measured in BTU's) to
a substance with less heat energy (measured in BTU's)
B. regardless of temperature
C. from an object at a higher temperature to an object at a lower
temperature
D. from a liquid to a vapor -
correct answer ✅C. from an object at a higher temperature to an
object at a lower temperature
Sensible heat
A. is measured using a pressure gauge
B. is always between 32 and 212 degrees F
C. is heat energy that causes a change in state, but does not cause a
change in temperature
D. is heat energy that causes a change in temperature, but does not
cause a change in state -
correct answer ✅D. is heat energy that causes a change in
temperature, but does not cause a change in state
