EPA 608 Certification Core Practice Test UPDATED ACTUAL Exam Questions and CORRECT Answers

EPA 608 Certification Core Practice Test
UPDATED ACTUAL Exam Questions and
CORRECT Answers
As of what date did it become unlawful to release Class 1 and Class II refrigerants to the
atmosphere? - CORRECT ANSWER July 1, 1992.


What is the ozone layer and why is it important to us on Earth? - CORRECT
ANSWER Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the
stratosphere layer that extends about 6 to 30 miles above earth.


The atom found in CFC and HCFC refrigerants that destroys ozone in the stratosphere is? -
CORRECT ANSWER Chlorine.



What is an ozone molecule made of? - CORRECT ANSWER Three oxygen atoms (O3).



Which refrigerant is a CFC? - CORRECT ANSWER R-12.



What is the name of the atom that attacks ozone molecules? - CORRECT ANSWER Chlorine
and bromine atoms emitted into the atmosphere.


Which refrigerant is a HFC? - CORRECT ANSWER R-134a.


Describe how one Chlorine atom can destroy 100,000 ozone molecules. - CORRECT
ANSWER Chlorine releases one of the oxygen atoms and forms two O2 oxygen molecules,
leaving the chlorine molecule free to attack another ozone molecule and repeat the process.


Which refrigerant contains no chlorine? - CORRECT ANSWER R-134a.