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EPA 609 TECHNICIAN CERTIFICATION Actual
Exam Questions with 100% Correct Answers
Latest Versions 2025 Graded A+
1. HFC-134a is the refrigerant that replaced in
automotive air conditioning systems - correct answer -R-12
2. R-152 is a chemical compound of which of the following: -
correct answer -HYDROGEN AND FLUORINE
3. T/F R-134a a refrigerant does pose a cancer or birth defect
hazard - correct answer -FALSE
4. T/F MVAC systems need not be evacuated to a vacuum
before servicing - correct answer -FALSE
5. Disposable Refrigerant Tanks under must
be evacuated before being scrapped - correct answer -20
POUNDS
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6. Supplies of CFC refrigerant for equipment servicing can
ONLY come from which of the following: - correct answer -
RECOVERY, RECYCLING, RECLAMATION
7. External Recovery Tanks must be evacuated to of
mercury before being put in service - correct answer -27 INCHES
8. Which of the following refrigerants has high ozone-depletion
potential?: - correct answer -CFCs
9. CFCs manufacturing was discontinued as of
- correct answer -JANUARY 1ST
1996
10. Which element in refrigerant makes them chemically less
stable once they enter the atmosphere? - correct answer -
HYDROGEN
11. of stratospheric chlorine comes from ozone-
depleting substances - correct answer -82%
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12. Which of the following has the Ozone Depletion Potential
(ODP) value of 1 - correct answer -CFC-11
13. T/F CFC refrigerants are chemically highly unstable - correct
answer -FALSE
14. has recently been approved for use in automobile
applications as an alternative to R-134a - correct answer -R152A
15. The Global Warming Potential is reported relative to
- correct answer -carbon dioxide
16. CFCs deplete stratospheric ozone and that a hole has
developed in the ozone layer over
- correct answer -
ANTARTICA
EPA 609 TECHNICIAN CERTIFICATION Actual
Exam Questions with 100% Correct Answers
Latest Versions 2025 Graded A+
1. HFC-134a is the refrigerant that replaced in
automotive air conditioning systems - correct answer -R-12
2. R-152 is a chemical compound of which of the following: -
correct answer -HYDROGEN AND FLUORINE
3. T/F R-134a a refrigerant does pose a cancer or birth defect
hazard - correct answer -FALSE
4. T/F MVAC systems need not be evacuated to a vacuum
before servicing - correct answer -FALSE
5. Disposable Refrigerant Tanks under must
be evacuated before being scrapped - correct answer -20
POUNDS
, Page | 2
6. Supplies of CFC refrigerant for equipment servicing can
ONLY come from which of the following: - correct answer -
RECOVERY, RECYCLING, RECLAMATION
7. External Recovery Tanks must be evacuated to of
mercury before being put in service - correct answer -27 INCHES
8. Which of the following refrigerants has high ozone-depletion
potential?: - correct answer -CFCs
9. CFCs manufacturing was discontinued as of
- correct answer -JANUARY 1ST
1996
10. Which element in refrigerant makes them chemically less
stable once they enter the atmosphere? - correct answer -
HYDROGEN
11. of stratospheric chlorine comes from ozone-
depleting substances - correct answer -82%
, Page | 3
12. Which of the following has the Ozone Depletion Potential
(ODP) value of 1 - correct answer -CFC-11
13. T/F CFC refrigerants are chemically highly unstable - correct
answer -FALSE
14. has recently been approved for use in automobile
applications as an alternative to R-134a - correct answer -R152A
15. The Global Warming Potential is reported relative to
- correct answer -carbon dioxide
16. CFCs deplete stratospheric ozone and that a hole has
developed in the ozone layer over
- correct answer -
ANTARTICA
