EPA 609 Technician Certification
Exam With Questions and Correct
Answers LATEST 2025/2026
Guaranteed 100% Pass
Lifetime of CFSs is believed to range from ________ years - ANSWER-20 TO 100
Ozone molecules consists of _______________ atoms of oxygen - ANSWER-THREE
.Non-condensables in a refrigeration system result in a ________________ discharge
pressure - ANSWER-higher
T/F Ozone depletion increases global warming - ANSWER-TRUE
T/F If a technician is already trained and certified to handle HFC-134a - ANSWER-
FALSE
The Clean Air Act (CAA) of _____________ directs EPA to establish requirements -
ANSWER-1990
Over the road refrigeration units and R-22 (HCFC) air conditioning - ANSWER-such as
that found in buses, also require Section ____________ certification, 608
Moisture level in Recycled R-12(CFC-12) that has been directly removed from -
ANSWER-and intended to be returned to, a mobile air-conditioning system cannot
exceed ________________ PPM by weight, 15
, At high temperature CFC-12 can decompose to form _____________ - ANSWER-
hydrochloric or hydrofluoric acid
T/F Refrigerants are light than air - ANSWER-FALSE
T/F Every refrigerant cylinder need not be protected by some type of pressure relief
device - ANSWER-FALSE
Stratosphere layer consists of about ____________ of the available Ozone: -
ANSWER-90%
CFC are highly reactive in _______________ of atmosphere - ANSWER-lower levels
HFC-134a is the refrigerant that replaced _____________ in automotive air conditioning
systems - ANSWER-R-12
R-152 is a chemical compound of which of the following: - ANSWER-HYDROGEN AND
FLUORINE
T/F R-134a a refrigerant does pose a cancer or birth defect hazard - ANSWER-FALSE
T/F MVAC systems need not be evacuated to a vacuum before servicing - ANSWER-
FALSE
Disposable Refrigerant Tanks under _______________ must be evacuated before
being scrapped - ANSWER-20 POUNDS
Supplies of CFC refrigerant for equipment servicing can ONLY come from which of the
following: - ANSWER-RECOVERY, RECYCLING, RECLAMATION
External Recovery Tanks must be evacuated to _______ of mercury before being put
in service - ANSWER-27 INCHES
Which of the following refrigerants has high ozone-depletion potential?: - ANSWER-
CFCs
CFCs manufacturing was discontinued as of ______________________ - ANSWER-
JANUARY 1ST 1996
Which element in refrigerant makes them chemically less stable once they enter the
atmosphere? - ANSWER-HYDROGEN
______________ of stratospheric chlorine comes from ozone-depleting substances -
ANSWER-82%
Exam With Questions and Correct
Answers LATEST 2025/2026
Guaranteed 100% Pass
Lifetime of CFSs is believed to range from ________ years - ANSWER-20 TO 100
Ozone molecules consists of _______________ atoms of oxygen - ANSWER-THREE
.Non-condensables in a refrigeration system result in a ________________ discharge
pressure - ANSWER-higher
T/F Ozone depletion increases global warming - ANSWER-TRUE
T/F If a technician is already trained and certified to handle HFC-134a - ANSWER-
FALSE
The Clean Air Act (CAA) of _____________ directs EPA to establish requirements -
ANSWER-1990
Over the road refrigeration units and R-22 (HCFC) air conditioning - ANSWER-such as
that found in buses, also require Section ____________ certification, 608
Moisture level in Recycled R-12(CFC-12) that has been directly removed from -
ANSWER-and intended to be returned to, a mobile air-conditioning system cannot
exceed ________________ PPM by weight, 15
, At high temperature CFC-12 can decompose to form _____________ - ANSWER-
hydrochloric or hydrofluoric acid
T/F Refrigerants are light than air - ANSWER-FALSE
T/F Every refrigerant cylinder need not be protected by some type of pressure relief
device - ANSWER-FALSE
Stratosphere layer consists of about ____________ of the available Ozone: -
ANSWER-90%
CFC are highly reactive in _______________ of atmosphere - ANSWER-lower levels
HFC-134a is the refrigerant that replaced _____________ in automotive air conditioning
systems - ANSWER-R-12
R-152 is a chemical compound of which of the following: - ANSWER-HYDROGEN AND
FLUORINE
T/F R-134a a refrigerant does pose a cancer or birth defect hazard - ANSWER-FALSE
T/F MVAC systems need not be evacuated to a vacuum before servicing - ANSWER-
FALSE
Disposable Refrigerant Tanks under _______________ must be evacuated before
being scrapped - ANSWER-20 POUNDS
Supplies of CFC refrigerant for equipment servicing can ONLY come from which of the
following: - ANSWER-RECOVERY, RECYCLING, RECLAMATION
External Recovery Tanks must be evacuated to _______ of mercury before being put
in service - ANSWER-27 INCHES
Which of the following refrigerants has high ozone-depletion potential?: - ANSWER-
CFCs
CFCs manufacturing was discontinued as of ______________________ - ANSWER-
JANUARY 1ST 1996
Which element in refrigerant makes them chemically less stable once they enter the
atmosphere? - ANSWER-HYDROGEN
______________ of stratospheric chlorine comes from ozone-depleting substances -
ANSWER-82%
