RETA INDUSTRIAL REFRIGERATION BOOK 1 EXAM
2026 NEWEST EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS (100% CORRECT VERIFIED
ANSWERS) ALREADY GRADED A+
The amount of heat required to change the temperature of one pound of water one degree
Fahrenheit defines? (pg. 1-21)
A) a BTU
B) a Calorie
C) a ton of refrigeration
D) Latent heat - ANSWER-A) a BTU
What is a ton of refrigeration? (pg. 1-39)
A) One ton of refrigeration is equal to the rate of moving 288,000 BTUs per day
B) One ton of refrigeration is equal to the rate of moving 12,000 BTUs per minute
C) One ton of refrigeration is equal to the rate of moving 200 BTUs per hour
D) One ton of refrigeration is equal to the rate of moving 288,000 BTUs per hour - ANSWER-A)
One ton of refrigeration is equal to the rate of moving 288,000 BTUs per day
Why should a valved-off refrigerant vessel not be filled completely full of liquid refrigerant? (pg.
3-12)
A) It will be too heavy
,B) Vessels may be filled completely
C) It may implode
D) It may rupture - ANSWER-D) It may rupture
What is the principal advantage and disadvantage of ammonia as a refrigerant? (pg. 3-15 to 19)
A) It is readily available but it is toxic
B) It is non-toxic but is it not readily available
C) It has a high CFM per ton and is toxic
D) It is a synthetic compound and leaks go unnoticed - ANSWER-A) It is readily available but it is
toxic
How can the boiling temperature of a liquid be changed? (pg. 1-32/33)
A) Apply more heat energy
B) Remove heat energy
C) Change the pressure on the liquid
D) Add more liquid to the container - ANSWER-C) Change the pressure on the liquid
What does the compressor do? (pg. 2-3)
A) Stores refrigerant
B) Absorbs heat into the system
C) Moves refrigerant from the low side to the high side
D) Rejects heat from the system - ANSWER-C) Moves refrigerant from the low side to the high
side
What does the expansion device do? (pg. 2-2)
A) Absorbs heat into the system
B) Controls flow
,C) It is the primary evaporator temperature control
D) Rejects heat from the system - ANSWER-B) Controls flow
What does the condenser do? (pg. 2-4)
A) Absorbs heat into the system
B) Controls flow
C) Moves refrigerant from the low side to the high side
D) Rejects heat from the system - ANSWER-D) Rejects heat from the system
What does the evaporator do? (pg. 2-3)
A) Absorbs heat into the system
B) Controls energy
C) Moves refrigerant from the low side to the high side
D) Rejects heat from the system - ANSWER-A) Absorbs heat into the system
The four basic required components of a vapor compression refrigeration system are? (pg. 2-11)
A) Compressor, condenser, evaporator, receiver
B) Compressor, condenser, pump, evaporator
C) Compressor, condenser, evaporator, expansion device
D) Compressor, condenser, pump, expansion device - ANSWER-C) Compressor, condenser,
evaporator, expansion device
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 - 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
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 - 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 - 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
C) From an object at a higher temperature to an object at a lower temperature
2026 NEWEST EXAM QUESTIONS AND CORRECT
DETAILED ANSWERS (100% CORRECT VERIFIED
ANSWERS) ALREADY GRADED A+
The amount of heat required to change the temperature of one pound of water one degree
Fahrenheit defines? (pg. 1-21)
A) a BTU
B) a Calorie
C) a ton of refrigeration
D) Latent heat - ANSWER-A) a BTU
What is a ton of refrigeration? (pg. 1-39)
A) One ton of refrigeration is equal to the rate of moving 288,000 BTUs per day
B) One ton of refrigeration is equal to the rate of moving 12,000 BTUs per minute
C) One ton of refrigeration is equal to the rate of moving 200 BTUs per hour
D) One ton of refrigeration is equal to the rate of moving 288,000 BTUs per hour - ANSWER-A)
One ton of refrigeration is equal to the rate of moving 288,000 BTUs per day
Why should a valved-off refrigerant vessel not be filled completely full of liquid refrigerant? (pg.
3-12)
A) It will be too heavy
,B) Vessels may be filled completely
C) It may implode
D) It may rupture - ANSWER-D) It may rupture
What is the principal advantage and disadvantage of ammonia as a refrigerant? (pg. 3-15 to 19)
A) It is readily available but it is toxic
B) It is non-toxic but is it not readily available
C) It has a high CFM per ton and is toxic
D) It is a synthetic compound and leaks go unnoticed - ANSWER-A) It is readily available but it is
toxic
How can the boiling temperature of a liquid be changed? (pg. 1-32/33)
A) Apply more heat energy
B) Remove heat energy
C) Change the pressure on the liquid
D) Add more liquid to the container - ANSWER-C) Change the pressure on the liquid
What does the compressor do? (pg. 2-3)
A) Stores refrigerant
B) Absorbs heat into the system
C) Moves refrigerant from the low side to the high side
D) Rejects heat from the system - ANSWER-C) Moves refrigerant from the low side to the high
side
What does the expansion device do? (pg. 2-2)
A) Absorbs heat into the system
B) Controls flow
,C) It is the primary evaporator temperature control
D) Rejects heat from the system - ANSWER-B) Controls flow
What does the condenser do? (pg. 2-4)
A) Absorbs heat into the system
B) Controls flow
C) Moves refrigerant from the low side to the high side
D) Rejects heat from the system - ANSWER-D) Rejects heat from the system
What does the evaporator do? (pg. 2-3)
A) Absorbs heat into the system
B) Controls energy
C) Moves refrigerant from the low side to the high side
D) Rejects heat from the system - ANSWER-A) Absorbs heat into the system
The four basic required components of a vapor compression refrigeration system are? (pg. 2-11)
A) Compressor, condenser, evaporator, receiver
B) Compressor, condenser, pump, evaporator
C) Compressor, condenser, evaporator, expansion device
D) Compressor, condenser, pump, expansion device - ANSWER-C) Compressor, condenser,
evaporator, expansion device
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 - 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
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 - 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 - 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
C) From an object at a higher temperature to an object at a lower temperature
