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EPA SECTION 609 EXAM
QUESTIONS WITH CORRE CT
ANSWERS
Question : T/F Ozone at ground level ans at Stratosphere
is a harmful pollutant
Correct answer: FALSE
Question : T/F R-134 is a chlorine-free refrigerant
Correct answer: TRUE
Question : T/F Ester-based synthetic oils can be mixed
with oils
Correct answer: FALSE
Question : T/F Ozone depletion increases global warming
Correct answer: TRUE
Question : T/F If a technician is already trained and
certified to handle HFC-134a
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Correct answer: FALSE
Question : T/F Refrigerants are light than air
Correct answer: FALSE
Question : T/F Every refrigerant cylinder need not be
protected by some type of pressure relief device
Correct answer: FALSE
Question : T/F R-134a a refrigerant does pose a cancer or
birth defect hazard
Correct answer: FALSE
Question : T/F MVAC systems need not be evacuated to a
vacuum before servicing
Correct answer: FALSE
Question : T/F CFC refrigerants are chemically highly
unstable
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Correct answer: FALSE
Question : T/F HFCs and HCFCs decompose when
released in lower atmosphere
Correct answer: TRUE
Question : T/F HFCs contributes to global warming
Correct answer: TRUE
Question : T/F Ultra violet radiation breaks down the
CFCs and frees the chlorine ion
Correct answer: TRUE
Question : T/F R-134A is a flammable at ambient
temperatures and atmospheric pressures:
Correct answer: FALSE
Question : T/F The Thermodynamic properties of HFC-
134a are similar to CFC-12
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Correct answer: True
Question : T/F The primary cause of over-pressurization
of refrigeration cylinder is due to overheating
Correct answer: TRUE
Question : T/F Halons were completely phased out by
1994
Correct answer: True
Question : T/F R-134a refrigerant has low solubility in
non-polar lubricants
Correct answer: TRUE
Question : T/F Technicians who repair or service HFC-
134a MVACs must be trained and certified by an EPA- approved organization
