Refrigeration Operator
Study online at https://quizlet.com/_hyebwg
1. Provides the safe design, construction, and installation of boilers and pres-
sure vessels: B51 Code
2. The code that provides for the safe design, construction, installation, op-
eration, inspection, testing, and repair of refrigeration and air conditioning
equipment and systems: B52 Code
3. In refrigeration systems, heat is _______ from the substance to be cooled: Ex-
tracted
4. If atmospheric pressure is stated at 101.3 kPa, this is the same as: Absolute Pressure
5. A substance at its saturation point is: At its boiling point
6. Viscosity: The resistance to flow of a liquid
7. Ice arenas use a/an ______ refrigeration system: Indirect
8. Latent Heat of Fusion: The amount of heat required to change a liquid to a solid
9. Ammonia classification: B2
10. Critically charge system: A refrigeration system where the entire charge can be contained in the
evaporator
11. Heat is a form of energy and may be transferred from one body to another
by virtue of a difference in: temperature
12. A Refrigeration Operator certificate entiles the holder to be: A Refrigeration Operator
and a person in charge of any type and size refrigeration plant
13. A refrigeration machinery room with specific restrictions is: A Class T machinery room
14. High Side: Those portions of a refrigeration system that are subject to condenser pressure
15. Indirect System: A refrigeration system that uses secondary coolant to transfer heat
16. Refrigerants in group A3 compared to group A1: Are more flammable
17. For a refrigeration plant containing more than 45kgs (100lbs) of refrigerant,
what is the minimum size of letters used for required signs?: 13mm
18. The CSA-B52 does not apply to ______: Air
19. Absolute pressure when the gauge shows 350kPa: 451kPa (350kPa gauge pressure +
101.3 atmospheric pressure)
20. The valve best suited for isolating flow: Gate valve
21. The valve best suited for throttling or regulating flow: Globe valve
22. Between a gate and globe valve, which one has he lowest pressure drop as
fluid flows through it?: Gate
, Refrigeration Operator
Study online at https://quizlet.com/_hyebwg
23. The valve that is designed to for high temperature and pressures and range
in size from 1"-152" in diameter: Butterfly Valve
24. The valve that is best suited to handle slurries and fluids with a high solid
content: Ball Valve
25. If 2 or 3 boilers are connected to a common supply and return header, what
would the type of stop valve be?: Non-pressure return valve
26. The items on a valve that require the closest examination: Seat and disc
27. The basic unit of all energy: Joule
28. 1 kilojoule equals: 1000 joules
29. What is the available size range for unprotected, soft, annealed copper
tubing used for a refrigerant: 6-35mm
30. The part of the refrigeration system designed to liquify refrigerant vapour: -
The condenser
31. How much experience must you have in a refrigerant plant in order to qualify
for the IFO qualification?: 1 month
32. Heat transfer can occur by:: Conduction, convection, radiation
33. The boiling point of water can be raised by:: Increasing the pressure above atmospheric
pressure
34. Refrigeration can be defined as the thermodynamic process of lowering
the temperature of a substance below the temperature of its surroundings
AND: maintaining this substance at the lower temperature
35. A closed refrigerant system provides for the return of ________: Refrigerant
36. The refrigerant vapour must be returned to the _______ state: liquid
37. Heat flows from ______ to _______: Hot to cold
38. The vapour can be condensed at a higher temperature as long as the pres-
sure is: High enough
39. A compressor provides _____ pressure in the evaporator: Low
40. A compressor provides ______ pressure discharge: High
41. The capacity of the refrigeration system is:: The rate at which it will dissipate heat
42. A tonne of refrigeration - the equivalent of heat needed to melt 1 tonne of
ice at a temperature of 0 degrees celsius in ________: 24 hours
43. Force =: mass x acceleration
Study online at https://quizlet.com/_hyebwg
1. Provides the safe design, construction, and installation of boilers and pres-
sure vessels: B51 Code
2. The code that provides for the safe design, construction, installation, op-
eration, inspection, testing, and repair of refrigeration and air conditioning
equipment and systems: B52 Code
3. In refrigeration systems, heat is _______ from the substance to be cooled: Ex-
tracted
4. If atmospheric pressure is stated at 101.3 kPa, this is the same as: Absolute Pressure
5. A substance at its saturation point is: At its boiling point
6. Viscosity: The resistance to flow of a liquid
7. Ice arenas use a/an ______ refrigeration system: Indirect
8. Latent Heat of Fusion: The amount of heat required to change a liquid to a solid
9. Ammonia classification: B2
10. Critically charge system: A refrigeration system where the entire charge can be contained in the
evaporator
11. Heat is a form of energy and may be transferred from one body to another
by virtue of a difference in: temperature
12. A Refrigeration Operator certificate entiles the holder to be: A Refrigeration Operator
and a person in charge of any type and size refrigeration plant
13. A refrigeration machinery room with specific restrictions is: A Class T machinery room
14. High Side: Those portions of a refrigeration system that are subject to condenser pressure
15. Indirect System: A refrigeration system that uses secondary coolant to transfer heat
16. Refrigerants in group A3 compared to group A1: Are more flammable
17. For a refrigeration plant containing more than 45kgs (100lbs) of refrigerant,
what is the minimum size of letters used for required signs?: 13mm
18. The CSA-B52 does not apply to ______: Air
19. Absolute pressure when the gauge shows 350kPa: 451kPa (350kPa gauge pressure +
101.3 atmospheric pressure)
20. The valve best suited for isolating flow: Gate valve
21. The valve best suited for throttling or regulating flow: Globe valve
22. Between a gate and globe valve, which one has he lowest pressure drop as
fluid flows through it?: Gate
, Refrigeration Operator
Study online at https://quizlet.com/_hyebwg
23. The valve that is designed to for high temperature and pressures and range
in size from 1"-152" in diameter: Butterfly Valve
24. The valve that is best suited to handle slurries and fluids with a high solid
content: Ball Valve
25. If 2 or 3 boilers are connected to a common supply and return header, what
would the type of stop valve be?: Non-pressure return valve
26. The items on a valve that require the closest examination: Seat and disc
27. The basic unit of all energy: Joule
28. 1 kilojoule equals: 1000 joules
29. What is the available size range for unprotected, soft, annealed copper
tubing used for a refrigerant: 6-35mm
30. The part of the refrigeration system designed to liquify refrigerant vapour: -
The condenser
31. How much experience must you have in a refrigerant plant in order to qualify
for the IFO qualification?: 1 month
32. Heat transfer can occur by:: Conduction, convection, radiation
33. The boiling point of water can be raised by:: Increasing the pressure above atmospheric
pressure
34. Refrigeration can be defined as the thermodynamic process of lowering
the temperature of a substance below the temperature of its surroundings
AND: maintaining this substance at the lower temperature
35. A closed refrigerant system provides for the return of ________: Refrigerant
36. The refrigerant vapour must be returned to the _______ state: liquid
37. Heat flows from ______ to _______: Hot to cold
38. The vapour can be condensed at a higher temperature as long as the pres-
sure is: High enough
39. A compressor provides _____ pressure in the evaporator: Low
40. A compressor provides ______ pressure discharge: High
41. The capacity of the refrigeration system is:: The rate at which it will dissipate heat
42. A tonne of refrigeration - the equivalent of heat needed to melt 1 tonne of
ice at a temperature of 0 degrees celsius in ________: 24 hours
43. Force =: mass x acceleration
