REFRIGERATION OPERATOR EXAM WITH COMPLETE
QUESTIONS AND ANSWERS //GRADED A+//100% PASS
|VERIFIED & UPDATED|ACTUAL 2026 CHEAT SHEET
A Refrigeration Operator certificate entiles the holder to be
A Refrigeration Operator and a person in charge of any type
and size refrigeration plant
A refrigeration machinery room with specific restrictions is
A Class T machinery room
High Side
Those portions of a refrigeration system that are subject to
condenser pressure
Indirect System
A refrigeration system that uses secondary coolant to
transfer heat
Page 1 of 48
,Refrigerants in group A3 compared to group A1
Are more flammable
For a refrigeration plant containing more than 45kgs (100lbs)
of refrigerant, what is the minimum size of letters used for
required signs?
13mm
Provides the safe design, construction, and installation of
boilers and pressure vessels
B51 Code
The code that provides for the safe design, construction,
installation, operation, inspection, testing, and repair of
refrigeration and air conditioning equipment and systems
B52 Code
In refrigeration systems, heat is _______ from the substance
to be cooled
Page 2 of 48
,Extracted
If atmospheric pressure is stated at 101.3 kPa, this is the
same as
Absolute Pressure
A substance at its saturation point is
At its boiling point
Viscosity
The resistance to flow of a liquid
Ice arenas use a/an ______ refrigeration system
Indirect
Latent Heat of Fusion
The amount of heat required to change a liquid to a solid
Page 3 of 48
, Ammonia classification
B2
Critically charge system
A refrigeration system where the entire charge can be
contained in the evaporator
Heat is a form of energy and may be transferred from one
body to another by virtue of a difference in
temperature
The CSA-B52 does not apply to ______
Air
Absolute pressure when the gauge shows 350kPa
451kPa (350kPa gauge pressure + 101.3 atmospheric
pressure)
Page 4 of 48
QUESTIONS AND ANSWERS //GRADED A+//100% PASS
|VERIFIED & UPDATED|ACTUAL 2026 CHEAT SHEET
A Refrigeration Operator certificate entiles the holder to be
A Refrigeration Operator and a person in charge of any type
and size refrigeration plant
A refrigeration machinery room with specific restrictions is
A Class T machinery room
High Side
Those portions of a refrigeration system that are subject to
condenser pressure
Indirect System
A refrigeration system that uses secondary coolant to
transfer heat
Page 1 of 48
,Refrigerants in group A3 compared to group A1
Are more flammable
For a refrigeration plant containing more than 45kgs (100lbs)
of refrigerant, what is the minimum size of letters used for
required signs?
13mm
Provides the safe design, construction, and installation of
boilers and pressure vessels
B51 Code
The code that provides for the safe design, construction,
installation, operation, inspection, testing, and repair of
refrigeration and air conditioning equipment and systems
B52 Code
In refrigeration systems, heat is _______ from the substance
to be cooled
Page 2 of 48
,Extracted
If atmospheric pressure is stated at 101.3 kPa, this is the
same as
Absolute Pressure
A substance at its saturation point is
At its boiling point
Viscosity
The resistance to flow of a liquid
Ice arenas use a/an ______ refrigeration system
Indirect
Latent Heat of Fusion
The amount of heat required to change a liquid to a solid
Page 3 of 48
, Ammonia classification
B2
Critically charge system
A refrigeration system where the entire charge can be
contained in the evaporator
Heat is a form of energy and may be transferred from one
body to another by virtue of a difference in
temperature
The CSA-B52 does not apply to ______
Air
Absolute pressure when the gauge shows 350kPa
451kPa (350kPa gauge pressure + 101.3 atmospheric
pressure)
Page 4 of 48
