LOW GWP REFRIGERANT SAFETY EXAM ACTUAL
EXAM 2026 | ALL QUESTIONS AND CORRECT
ANSWERS | VERIFIED ANSWERS | BRAND NEW
VERSION!
When installing a system that is charged with a flammable refrigerant,
which of the following can be installed to energize mitigation
responses?
Active refrigerant sensor.
Combustion gas leak detector.
Passive refrigerant sensor.
Wi-Fi enabled digital thermostat. ---------CORRECT ANSWER-----------------
Active refrigerant sensor.
Intrinsically safe electrical components:
can be operated in wet locations or underwater.
,can be worked on while live within a flammable atmosphere.
can only be operated while being monitored by a service professional.
can operate outside of their listed design conditions for a brief period. -
--------CORRECT ANSWER-----------------can be worked on while live
within a flammable atmosphere.
When performing service on the electrical components of a system that
is charged with an A2L refrigerant, which of the following is an
unacceptable practice?
Discharging all capacitors with a screwdriver prior to beginning any
repair.
Replace components only with parts specified by the manufacturer
(OEM).
Verify that the system is properly grounded prior to beginning any
repair.
When the system is de-energized, employ proper lockout and tagout
procedures. ---------CORRECT ANSWER-----------------Discharging all
capacitors with a screwdriver prior to beginning any repair.
,Patterns of adding refrigerant to an A2L system of at least once per
three-year period, should be considered:
a symptom of a faulty compressor.
proof of a leak.
verification of the efficiency of any installed mitigation strategies.
within the range of permissible emissions. ---------CORRECT ANSWER-----
------------proof of a leak
After reaching the required recovery level on a system that is charged
with an A2L refrigerant:
a nitrogen sweep should be done to remove any residual refrigerant
vapor.
an alcohol-based solution must be used to remove any oil or grease.
, the refractive index of the compressor must be tested.
the system must stand idle for 60 minutes prior to beginning any work
on it. ---------CORRECT ANSWER-----------------a nitrogen sweep should be
done to remove any residual refrigerant vapor.
After installation, the refrigerant piping for an A2L system must be:
cleaned with an alcohol-based solution to remove grease and oil.
pressurized with dry nitrogen to perform a leak test.
pressurized with a non-flammable refrigerant (A1) to perform a leak
test.
vibration tested using whichever method is approved by the local code
authority. ---------CORRECT ANSWER-----------------pressurized with dry
nitrogen to perform a leak test.
The minimum concentration of a refrigerant that can propagate a flame
through a consistent mixture of the refrigerant and air is known as the:
EXAM 2026 | ALL QUESTIONS AND CORRECT
ANSWERS | VERIFIED ANSWERS | BRAND NEW
VERSION!
When installing a system that is charged with a flammable refrigerant,
which of the following can be installed to energize mitigation
responses?
Active refrigerant sensor.
Combustion gas leak detector.
Passive refrigerant sensor.
Wi-Fi enabled digital thermostat. ---------CORRECT ANSWER-----------------
Active refrigerant sensor.
Intrinsically safe electrical components:
can be operated in wet locations or underwater.
,can be worked on while live within a flammable atmosphere.
can only be operated while being monitored by a service professional.
can operate outside of their listed design conditions for a brief period. -
--------CORRECT ANSWER-----------------can be worked on while live
within a flammable atmosphere.
When performing service on the electrical components of a system that
is charged with an A2L refrigerant, which of the following is an
unacceptable practice?
Discharging all capacitors with a screwdriver prior to beginning any
repair.
Replace components only with parts specified by the manufacturer
(OEM).
Verify that the system is properly grounded prior to beginning any
repair.
When the system is de-energized, employ proper lockout and tagout
procedures. ---------CORRECT ANSWER-----------------Discharging all
capacitors with a screwdriver prior to beginning any repair.
,Patterns of adding refrigerant to an A2L system of at least once per
three-year period, should be considered:
a symptom of a faulty compressor.
proof of a leak.
verification of the efficiency of any installed mitigation strategies.
within the range of permissible emissions. ---------CORRECT ANSWER-----
------------proof of a leak
After reaching the required recovery level on a system that is charged
with an A2L refrigerant:
a nitrogen sweep should be done to remove any residual refrigerant
vapor.
an alcohol-based solution must be used to remove any oil or grease.
, the refractive index of the compressor must be tested.
the system must stand idle for 60 minutes prior to beginning any work
on it. ---------CORRECT ANSWER-----------------a nitrogen sweep should be
done to remove any residual refrigerant vapor.
After installation, the refrigerant piping for an A2L system must be:
cleaned with an alcohol-based solution to remove grease and oil.
pressurized with dry nitrogen to perform a leak test.
pressurized with a non-flammable refrigerant (A1) to perform a leak
test.
vibration tested using whichever method is approved by the local code
authority. ---------CORRECT ANSWER-----------------pressurized with dry
nitrogen to perform a leak test.
The minimum concentration of a refrigerant that can propagate a flame
through a consistent mixture of the refrigerant and air is known as the:
