EPA 609 Practice EXAM
QUESTIONS WITH CORRECT
SOLUTIONS||ALREADY GRADED
A+||UPDATED 2025/2026
SYLLABUS||100% GUARANTEED
PASS||<<LATEST VERSION>>
The color code for R-12 disposable refrigerant cylinders is ______ - ANSWER ✓
white
Since _______, it has been mandatory to recycle HFC-134a as well as any other
automotive refrigerant before returning to that MVAC or sold: - ANSWER ✓ Jan
29, 1998
Halons were completely phased out by 1994 - ANSWER ✓ True
R-134a is flammable at ambient temperatures and atmospheric pressures -
ANSWER ✓ False
Since ______, it has been illegal to vent substitutes for CFC 3. and HCFC
refrigerants: - ANSWER ✓ Nov 15, 1995
Which of the following will not react with ozone gas: - ANSWER ✓ Fluorine
Montreal Protocol is signed in ______ by 23 counties including USA - ANSWER
✓ Sep 1987
The sale of small containers of refrigerant under _______, including the one
pound cans, are restricted to only people certified in Section 609 - ANSWER ✓ 20
lb
Disposable cylinders are manufactured from: - ANSWER ✓ steel
, HFC-134a refrigerant has an Ozone Depletion Potential of: - ANSWER ✓ 0.0
Ozone layer is present in both Stratosphere and mesosphere layers of earth's
atmosphere: - ANSWER ✓ False
R-134a refrigerant has low solubility in non-polar lubricants - ANSWER ✓ True
Average ozone concentration in Earth's atmosphere as a whole is only about
______ parts per million - ANSWER ✓ 0.3
Use of Carbon dioxide (R-744) refrigerant results into a ______ efficiency cycle: -
ANSWER ✓ much lower
Recovery cylinders are painted yellow in the shoulder area and _____ down the
side - ANSWER ✓ 12 inches
Technicians who repair or service HFC-134a MVACs must be trained and
certified by an EPA-approved organization - ANSWER ✓ True
Moisture content in recycled R-134a (HFC-134a) that has been directly removed
from and intended to be returned to a mobile air-conditioning system cannot
exceed _______ by weight - ANSWER ✓ 50 PPM
R-134a disposable refrigerant cylinder is ________ color coded: - ANSWER ✓
light blue
Disposable cylinders are manufactured to specifications established by: -
ANSWER ✓ DOT
Which of the following refrigerant has a molecular formula is C2H4F2: -
ANSWER ✓ R-152a
The AHRI standard now contains the new specification to limit unsaturated
impurities in HFC-134a to a maximum level of ________ - ANSWER ✓ 40 ppm
Refrigerants may be mixed in recovery cylinders: - ANSWER ✓ False
QUESTIONS WITH CORRECT
SOLUTIONS||ALREADY GRADED
A+||UPDATED 2025/2026
SYLLABUS||100% GUARANTEED
PASS||<<LATEST VERSION>>
The color code for R-12 disposable refrigerant cylinders is ______ - ANSWER ✓
white
Since _______, it has been mandatory to recycle HFC-134a as well as any other
automotive refrigerant before returning to that MVAC or sold: - ANSWER ✓ Jan
29, 1998
Halons were completely phased out by 1994 - ANSWER ✓ True
R-134a is flammable at ambient temperatures and atmospheric pressures -
ANSWER ✓ False
Since ______, it has been illegal to vent substitutes for CFC 3. and HCFC
refrigerants: - ANSWER ✓ Nov 15, 1995
Which of the following will not react with ozone gas: - ANSWER ✓ Fluorine
Montreal Protocol is signed in ______ by 23 counties including USA - ANSWER
✓ Sep 1987
The sale of small containers of refrigerant under _______, including the one
pound cans, are restricted to only people certified in Section 609 - ANSWER ✓ 20
lb
Disposable cylinders are manufactured from: - ANSWER ✓ steel
, HFC-134a refrigerant has an Ozone Depletion Potential of: - ANSWER ✓ 0.0
Ozone layer is present in both Stratosphere and mesosphere layers of earth's
atmosphere: - ANSWER ✓ False
R-134a refrigerant has low solubility in non-polar lubricants - ANSWER ✓ True
Average ozone concentration in Earth's atmosphere as a whole is only about
______ parts per million - ANSWER ✓ 0.3
Use of Carbon dioxide (R-744) refrigerant results into a ______ efficiency cycle: -
ANSWER ✓ much lower
Recovery cylinders are painted yellow in the shoulder area and _____ down the
side - ANSWER ✓ 12 inches
Technicians who repair or service HFC-134a MVACs must be trained and
certified by an EPA-approved organization - ANSWER ✓ True
Moisture content in recycled R-134a (HFC-134a) that has been directly removed
from and intended to be returned to a mobile air-conditioning system cannot
exceed _______ by weight - ANSWER ✓ 50 PPM
R-134a disposable refrigerant cylinder is ________ color coded: - ANSWER ✓
light blue
Disposable cylinders are manufactured to specifications established by: -
ANSWER ✓ DOT
Which of the following refrigerant has a molecular formula is C2H4F2: -
ANSWER ✓ R-152a
The AHRI standard now contains the new specification to limit unsaturated
impurities in HFC-134a to a maximum level of ________ - ANSWER ✓ 40 ppm
Refrigerants may be mixed in recovery cylinders: - ANSWER ✓ False
