Auto HVAC EPA 609 Practice Questions
with Correct Answers
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
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
