03301 Refrigerants and Oils: Module 3
Exam Questions and Answers Graded A+
Steel and aluminum piping materials are required for use with_? - Correct answer-
Ammonia
What characteristic must a refrigerant have to be used as a drop-in replacement for
another refrigerant? - Correct answer-Similar operating pressures and temperatures
HFO-1234yf is noteworthy because it_ - Correct answer-Is mildly flammable
Which refrigerant will no longer be manufactured beyond 2020? - Correct answer-
HCFC-22
Which substance is not found in CFC refrigerants? - Correct answer-Hydrogen
Which group of refrigerant is used in blends to enhance oil return, usually at 3% or
less of the blend? - Correct answer-HC refrigerants
Which of the following refrigerants has the lowest ozone depletion potential? -
Correct answer-HFC-134a
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
Exam Questions and Answers Graded A+
Steel and aluminum piping materials are required for use with_? - Correct answer-
Ammonia
What characteristic must a refrigerant have to be used as a drop-in replacement for
another refrigerant? - Correct answer-Similar operating pressures and temperatures
HFO-1234yf is noteworthy because it_ - Correct answer-Is mildly flammable
Which refrigerant will no longer be manufactured beyond 2020? - Correct answer-
HCFC-22
Which substance is not found in CFC refrigerants? - Correct answer-Hydrogen
Which group of refrigerant is used in blends to enhance oil return, usually at 3% or
less of the blend? - Correct answer-HC refrigerants
Which of the following refrigerants has the lowest ozone depletion potential? -
Correct answer-HFC-134a
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
