Auto HVAC EPA 609 Practice Questions
with Correct Answers 2025-2026
SAE J2297 establishes standards for? CORRECT ANSWER stability and compatibility of
fluorescent dyes for use in mobile R-134a systems and R-1234yf systems
SAE J2298 establishes standards for? CORRECT ANSWER The procedures for using leak
detection dyes
SAE J1628 establishes standards for? CORRECT ANSWER covers the procedures for using
electronic leak detectors
SAE J2913 establishes standards for? CORRECT ANSWER minimum performance
requirements for leak detectors used in R-1234yf
SAE J2791 establishes standards for? CORRECT ANSWER minimum performance
requirements for leak detectors used in R-134a
Technician A says the R-1234yf may be used to retrofit an R-134a system.Technician B says the
R-1234yf is an ozone-depleting gas.Who is right? CORRECT ANSWER Neither
SAE J2209 establishes standards for? CORRECT ANSWER The requirements of equipment
used for R-12 recovery-only
SAE J2810 establishes standards for? CORRECT ANSWER The requirements of equipment
used for R-134a recovery-only
, The recovery process on an R-12 or R-134a A/C system should continue until a stable vacuum is
held by the system for: CORRECT ANSWER 2 minutes
A recycled refrigerant container has been checked and found to be above the given pressure
limit for the ambient temperature. Technician A says that the refrigerant container should be
placed in a cooler storage area before use. Technician B says that the vapor in the containe
r should be slowly vented into a refrigerant handling unit. Who is right? -
CORRECT ANSWER -B only
The ozone layer filters out most of the sun's harmful: CORRECT ANSWER
ultraviolet radiation
The reduction of ozone in the stratosphere could cause: CORRECT ANSWER
an increase in skin cancer and eye cataracts.
Technician A says that sunlight striking CFC molecules can cause chlorine to be released. Te
chnician B says that chlorine atoms react with ozone to produce chlorine monoxide. Who is
right? CORRECT ANSWER Both A & B
R-134a refrigerant must be recycled to meet which of these purity standards?
CORRECT ANSWER J2099
If the required charge level of refrigerant for an MVAC system is 40 ounces, which of these
is the correct charge level measured in pounds? CORRECT ANSWER 2.50lb (1.13kg)
Technician A says that recovery/recycling/recharging equipment for R-
1234yf refrigerant requires integration with a refrigerant identifier.Technician B says the reco
very/recycling/recharging equipment for R-
1234yf refrigerant uses a 17mm O.D. quick coupler on the low-
side service hose.Who is right? CORRECT ANSWER A only
with Correct Answers 2025-2026
SAE J2297 establishes standards for? CORRECT ANSWER stability and compatibility of
fluorescent dyes for use in mobile R-134a systems and R-1234yf systems
SAE J2298 establishes standards for? CORRECT ANSWER The procedures for using leak
detection dyes
SAE J1628 establishes standards for? CORRECT ANSWER covers the procedures for using
electronic leak detectors
SAE J2913 establishes standards for? CORRECT ANSWER minimum performance
requirements for leak detectors used in R-1234yf
SAE J2791 establishes standards for? CORRECT ANSWER minimum performance
requirements for leak detectors used in R-134a
Technician A says the R-1234yf may be used to retrofit an R-134a system.Technician B says the
R-1234yf is an ozone-depleting gas.Who is right? CORRECT ANSWER Neither
SAE J2209 establishes standards for? CORRECT ANSWER The requirements of equipment
used for R-12 recovery-only
SAE J2810 establishes standards for? CORRECT ANSWER The requirements of equipment
used for R-134a recovery-only
, The recovery process on an R-12 or R-134a A/C system should continue until a stable vacuum is
held by the system for: CORRECT ANSWER 2 minutes
A recycled refrigerant container has been checked and found to be above the given pressure
limit for the ambient temperature. Technician A says that the refrigerant container should be
placed in a cooler storage area before use. Technician B says that the vapor in the containe
r should be slowly vented into a refrigerant handling unit. Who is right? -
CORRECT ANSWER -B only
The ozone layer filters out most of the sun's harmful: CORRECT ANSWER
ultraviolet radiation
The reduction of ozone in the stratosphere could cause: CORRECT ANSWER
an increase in skin cancer and eye cataracts.
Technician A says that sunlight striking CFC molecules can cause chlorine to be released. Te
chnician B says that chlorine atoms react with ozone to produce chlorine monoxide. Who is
right? CORRECT ANSWER Both A & B
R-134a refrigerant must be recycled to meet which of these purity standards?
CORRECT ANSWER J2099
If the required charge level of refrigerant for an MVAC system is 40 ounces, which of these
is the correct charge level measured in pounds? CORRECT ANSWER 2.50lb (1.13kg)
Technician A says that recovery/recycling/recharging equipment for R-
1234yf refrigerant requires integration with a refrigerant identifier.Technician B says the reco
very/recycling/recharging equipment for R-
1234yf refrigerant uses a 17mm O.D. quick coupler on the low-
side service hose.Who is right? CORRECT ANSWER A only
