EPA 608 (CORE) Exam (Latest Update 2026
/ 2027) Questions & Answers {Grade A}
100% Correct
What is the best proof that CFC's are in the stratosphere? - correct answer The
measurement of CFC's in air samples from the stratosphere.
Which type of refrigerant is the most harmful to the stratospheric ozone? - correct
answer Refrigerants containing Bromine.
It is necessary to place a refrigerant label on what? - correct answer A refrigerant
cylinder which is being returned for reclaiming.
When transporting cylinders containing used refrigerant, the DOT requires that you
what? - correct answer Attach DOT classification tags.
, Before you dispose of any system containing a refrigerant, you must? - correct answer
Recover the refrigerant.
In general, blended refrigerants should be charged? - correct answer As a liquid.
Refrigerant entering the compressor of a refrigeration system is a? - correct answer
Superheated vapor.
__________ refers to the process of cleaning refrigerants by oil separation & single or
multiple passes through filter-driers, which reduce moisture & acidity? - correct
answer Recycling
When a system will not hold a vacuum after it has been evacuated, then? - correct
answer The system may be leaking.
/ 2027) Questions & Answers {Grade A}
100% Correct
What is the best proof that CFC's are in the stratosphere? - correct answer The
measurement of CFC's in air samples from the stratosphere.
Which type of refrigerant is the most harmful to the stratospheric ozone? - correct
answer Refrigerants containing Bromine.
It is necessary to place a refrigerant label on what? - correct answer A refrigerant
cylinder which is being returned for reclaiming.
When transporting cylinders containing used refrigerant, the DOT requires that you
what? - correct answer Attach DOT classification tags.
, Before you dispose of any system containing a refrigerant, you must? - correct answer
Recover the refrigerant.
In general, blended refrigerants should be charged? - correct answer As a liquid.
Refrigerant entering the compressor of a refrigeration system is a? - correct answer
Superheated vapor.
__________ refers to the process of cleaning refrigerants by oil separation & single or
multiple passes through filter-driers, which reduce moisture & acidity? - correct
answer Recycling
When a system will not hold a vacuum after it has been evacuated, then? - correct
answer The system may be leaking.
