RETA INDUSTRIAL REFRIGERATION BOOK 1 NEWEST ACTUAL
EXAM //WITH COMPLETE// QUESTIONS AND ANSWERS//
VERIFIED//GRADED A+//
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
D) Is heat energy that causes a change in temperature but
does not cause a change of state
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
C) Warm air moving over an object
Page 1 of 99
,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
D) By observing product temperature, if the product is at
temperature the system is operating properly
A) By using his knowledge of system basic operating
principles to evaluate temperature and pressure readings
How is cooling accomplished by a mechanical refrigeration
system? (pg. 1-2)
A) By just pumping ice water through a space
B) By just adding cold air
C) By removing heat energy from an object or area
D) By increasing the molecular vibration of an object
C) By removing heat energy from an object or area
Which of the following is used to measure the quantity of heat
energy? (pg. 1-21)
A) British Thermal Units (BTUs) or Calories
Page 2 of 99
,B) Pascals and Kilopascals
C) Degrees Kelvin
D) Degrees Celsius or Fahrenheit
A) British Thermal Units (BTUs) or Calories
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
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
C) Interpretation of information from temperature and
pressure gauges, basic operating principles, company quality
control policies and procedures
Page 3 of 99
, D) Interpretation of information from temperature and
pressure gauges, manufacturer of the equipment, company
quality control policies and procedures
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
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
C) From an object at a higher temperature to an object at a
lower temperature
D) From a liquid to a vapor
Page 4 of 99
EXAM //WITH COMPLETE// QUESTIONS AND ANSWERS//
VERIFIED//GRADED A+//
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
D) Is heat energy that causes a change in temperature but
does not cause a change of state
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
C) Warm air moving over an object
Page 1 of 99
,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
D) By observing product temperature, if the product is at
temperature the system is operating properly
A) By using his knowledge of system basic operating
principles to evaluate temperature and pressure readings
How is cooling accomplished by a mechanical refrigeration
system? (pg. 1-2)
A) By just pumping ice water through a space
B) By just adding cold air
C) By removing heat energy from an object or area
D) By increasing the molecular vibration of an object
C) By removing heat energy from an object or area
Which of the following is used to measure the quantity of heat
energy? (pg. 1-21)
A) British Thermal Units (BTUs) or Calories
Page 2 of 99
,B) Pascals and Kilopascals
C) Degrees Kelvin
D) Degrees Celsius or Fahrenheit
A) British Thermal Units (BTUs) or Calories
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
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
C) Interpretation of information from temperature and
pressure gauges, basic operating principles, company quality
control policies and procedures
Page 3 of 99
, D) Interpretation of information from temperature and
pressure gauges, manufacturer of the equipment, company
quality control policies and procedures
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
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
C) From an object at a higher temperature to an object at a
lower temperature
D) From a liquid to a vapor
Page 4 of 99
