EPA A31 Exam Questions and Answers
What does ozone in the stratosphere above the earth consist of? - correct Answers-
molecules containing 3 oxygen atoms
Which of the following refrigerants has the lowest global warming potential? - correct
Answers-R-600a
Which of the following gasses is used as the baseline measurement for global warming
potential? - correct Answers-carbon dioxide
Which type of refrigerant typically has the lowest global warming potential? - correct
Answers-HFOs
What is the state of the refrigerant entering the compressor of a refrigeration system? -
correct Answers-low pressure vapor
Why are HFO refrigerants less flammable than hydrocarbon refrigerants? - correct
Answers-They contain flourine
What does a section 608 certification allow a technician to do? - correct Answers-
Purchase or handle controlled refrigerants
Which refrigerant has the highest ozone depletion potential (ODP)? - correct Answers-
CFCs
Which of the following refrigerants contain chlorine? - correct Answers-R-22
HFC refrigerants contain which of the following? - correct Answers-hydrogen fluorine
carbon
What is being done in the U.S. to stop damage to the stratospheric ozone layer? -
correct Answers-Phasing out the use of chlorofluorocarbons and
hydrochlorofluorocarbons
How should disposable cylinders of CFCs, HCFCs, and HFCs be discarded? - correct
Answers-Recover all remaining refrigerant, render the cylinders useless, and recycle
the metal.
In addition to fines and being required to appear in court, what penalty can be imposed
on service technicians who violate Clean Air Act provisions? - correct Answers-They
may lose their certification
What does ozone in the stratosphere above the earth consist of? - correct Answers-
molecules containing 3 oxygen atoms
Which of the following refrigerants has the lowest global warming potential? - correct
Answers-R-600a
Which of the following gasses is used as the baseline measurement for global warming
potential? - correct Answers-carbon dioxide
Which type of refrigerant typically has the lowest global warming potential? - correct
Answers-HFOs
What is the state of the refrigerant entering the compressor of a refrigeration system? -
correct Answers-low pressure vapor
Why are HFO refrigerants less flammable than hydrocarbon refrigerants? - correct
Answers-They contain flourine
What does a section 608 certification allow a technician to do? - correct Answers-
Purchase or handle controlled refrigerants
Which refrigerant has the highest ozone depletion potential (ODP)? - correct Answers-
CFCs
Which of the following refrigerants contain chlorine? - correct Answers-R-22
HFC refrigerants contain which of the following? - correct Answers-hydrogen fluorine
carbon
What is being done in the U.S. to stop damage to the stratospheric ozone layer? -
correct Answers-Phasing out the use of chlorofluorocarbons and
hydrochlorofluorocarbons
How should disposable cylinders of CFCs, HCFCs, and HFCs be discarded? - correct
Answers-Recover all remaining refrigerant, render the cylinders useless, and recycle
the metal.
In addition to fines and being required to appear in court, what penalty can be imposed
on service technicians who violate Clean Air Act provisions? - correct Answers-They
may lose their certification
