RETA Industrial Refrigeration Book 1
Exam 2026 Questions and Answers
As defined in Chapter one of this text, the primary purpose of a refrigeration
system it to? (pg. 1-3)
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 areas of required knowledge for this to be
possible? (pg. 1-4)
A) Basic physical principles, interpretation of information from temperature and
pressure gauges, basic operating principles
B) Basic physical principles, interpretation of information from temperature and
pressure gauges, manufacturer of the equipment
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,C) Interpretation of information from temperature and pressure gauges, basic
operating principles, company quality control policies and procedures
D) Interpretation of information from temperature and pressure gauges,
manufacturer of the equipment, company quality control policies and procedures -
Correct answer-A) Basic physical principles, interpretation of information from
temperature and pressure gauges, basic operating principles
Mechanical refrigeration is a series of steps that? (pg. 1-2)
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) Utilizes the cooling effect of compressing a gas to reduce the temperature in a
space or object - Correct answer-A) Moves heat energy from a space or object to
an area where it can do no harm
Heat energy always flows? (pg. 1-23)
A) From a substance with more heat energy [measured in BTUs] to a substance
with less heat energy [ measured in BTUs]
B) Regardless of temperature
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,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? (pg. 1-22)
A) Is measured using a pressure gauge
B) Is always between 32°F and 212°F
C) Is heat energy that causes a change of 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
of state - Correct answer-D) Is heat energy that causes a change in temperature but
does not cause a change of state
Latent heat? (pg. 1-22)
A) Is measured using a pressure gauge
B) Can be sensed by using a thermometer
C) Is heat energy that causes a change of state but does not cause a change in
temperature
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, D) Is heat energy that causes a change in temperature but does not cause a change
of state - Correct answer-C) 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? (pg. 1-
36)
A) The Sun's rays
B) A rod that is heat on one end resulting in a temperature change at the other end
C) Warm air moving over an object
D) Heat transferred to a pan setting on an electric hot plate - Correct answer-C)
Warm air moving over an object
How does the refrigeration technician/operator know what the conditions are
within a refrigeration system? (pg. 1-4)
A) By using his knowledge of system basic operating principles to evaluate
temperature and pressure readings
B) By observing the alarm annunciator panel, if no alarms are displayed the system
is operating efficiently and correctly
C) By keeping the discharge and suction pressures within specification the operator
assures proper system operationg
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
Exam 2026 Questions and Answers
As defined in Chapter one of this text, the primary purpose of a refrigeration
system it to? (pg. 1-3)
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 areas of required knowledge for this to be
possible? (pg. 1-4)
A) Basic physical principles, interpretation of information from temperature and
pressure gauges, basic operating principles
B) Basic physical principles, interpretation of information from temperature and
pressure gauges, manufacturer of the equipment
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,C) Interpretation of information from temperature and pressure gauges, basic
operating principles, company quality control policies and procedures
D) Interpretation of information from temperature and pressure gauges,
manufacturer of the equipment, company quality control policies and procedures -
Correct answer-A) Basic physical principles, interpretation of information from
temperature and pressure gauges, basic operating principles
Mechanical refrigeration is a series of steps that? (pg. 1-2)
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) Utilizes the cooling effect of compressing a gas to reduce the temperature in a
space or object - Correct answer-A) Moves heat energy from a space or object to
an area where it can do no harm
Heat energy always flows? (pg. 1-23)
A) From a substance with more heat energy [measured in BTUs] to a substance
with less heat energy [ measured in BTUs]
B) Regardless of temperature
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
,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? (pg. 1-22)
A) Is measured using a pressure gauge
B) Is always between 32°F and 212°F
C) Is heat energy that causes a change of 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
of state - Correct answer-D) Is heat energy that causes a change in temperature but
does not cause a change of state
Latent heat? (pg. 1-22)
A) Is measured using a pressure gauge
B) Can be sensed by using a thermometer
C) Is heat energy that causes a change of state but does not cause a change in
temperature
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
, D) Is heat energy that causes a change in temperature but does not cause a change
of state - Correct answer-C) 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? (pg. 1-
36)
A) The Sun's rays
B) A rod that is heat on one end resulting in a temperature change at the other end
C) Warm air moving over an object
D) Heat transferred to a pan setting on an electric hot plate - Correct answer-C)
Warm air moving over an object
How does the refrigeration technician/operator know what the conditions are
within a refrigeration system? (pg. 1-4)
A) By using his knowledge of system basic operating principles to evaluate
temperature and pressure readings
B) By observing the alarm annunciator panel, if no alarms are displayed the system
is operating efficiently and correctly
C) By keeping the discharge and suction pressures within specification the operator
assures proper system operationg
©COPYRIGHT 2025, ALL RIGHTS RESERVED 4
