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A2L Exam 2026 with accurate detailed solutions
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The AIM Act will phase-down production and importation of ___________ - ✔✔HFCs
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EPA SNAP 23 approved the use of ___________ refrigerants in the air conditioning sector,
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subject to use restrictions - ✔✔A2L
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The HVACR industry is currently transitioning away from HFCs to ___________ - ✔✔HFOs &
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HFO blends||
___________ is used as a baseline measurement for global warming potential and has a
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value of 1. - ✔✔CO2
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Flammable refrigerants will only be used in ___________. - ✔✔new equipment
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Refrigerants are ___________ than air and can displace oxygen, leading to suffocation or
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asphyxiation. - ✔✔heavier || ||
Refillable cylinders (recovery tanks) should not be filled beyond ___________ of their
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maximum capacity - ✔✔80% || || ||
Refrigerant cylinders should be transported in the ___________ position. - ✔✔upright
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DOT rules also prohibit smoking within ___________ feet of flammable gases. - ✔✔25
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Tools used during the installation or service of systems charged with a flammable refrigerant
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must be ___________. - ✔✔rated for use with flammable refrigerants
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, 2
If the refrigerant is flammable, the basic refrigeration cycle ___________ - ✔✔does not
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change
Equipment with flammable refrigerant requires a ___________-colored marking on all
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process tubes and service connections. - ✔✔red
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High-temperature/high pressure refrigerant vapor flows from the compressor into the || || || || || || || || || ||
___________ - ✔✔condenser || ||
The ___________ receives a low pressure/low temperature refrigerant vapor and discharges
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a high pressure/high-temperature vapor. - ✔✔compressor
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The ___________ is fed high-pressure, subcooled liquid refrigerant and it feeds low-
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pressure/low-temperature liquid to the evaporator. - ✔✔metering device || || || || || || ||
Most compressors require ___________ to operate properly, which is specified by the
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manufacturer. - ✔✔lubrication (oil) || || ||
The ___________ is heat transfer component located on the low-pressure side of the
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system. - ✔✔evaporator || ||
The two types or classes of metering devices are ___________ and ___________ - ✔✔fixed,
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adjustable
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Additional components that may be installed on the low side of a refrigeration circuit are
|| || || || || || || || || || || || || || ||
___________ and ___________. - ✔✔suction line driers, accumulators
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A2L Exam 2026 with accurate detailed solutions
|| || || || || ||
The AIM Act will phase-down production and importation of ___________ - ✔✔HFCs
|| || || || || || || || || || ||
EPA SNAP 23 approved the use of ___________ refrigerants in the air conditioning sector,
|| || || || || || || || || || || || || ||
subject to use restrictions - ✔✔A2L
|| || || || ||
The HVACR industry is currently transitioning away from HFCs to ___________ - ✔✔HFOs &
|| || || || || || || || || || || || || ||
HFO blends||
___________ is used as a baseline measurement for global warming potential and has a
|| || || || || || || || || || || || || ||
value of 1. - ✔✔CO2
|| || || ||
Flammable refrigerants will only be used in ___________. - ✔✔new equipment
|| || || || || || || || || ||
Refrigerants are ___________ than air and can displace oxygen, leading to suffocation or
|| || || || || || || || || || || || ||
asphyxiation. - ✔✔heavier || ||
Refillable cylinders (recovery tanks) should not be filled beyond ___________ of their
|| || || || || || || || || || || ||
maximum capacity - ✔✔80% || || ||
Refrigerant cylinders should be transported in the ___________ position. - ✔✔upright
|| || || || || || || || || ||
DOT rules also prohibit smoking within ___________ feet of flammable gases. - ✔✔25
|| || || || || || || || || || || ||
Tools used during the installation or service of systems charged with a flammable refrigerant
|| || || || || || || || || || || || ||
must be ___________. - ✔✔rated for use with flammable refrigerants
|| || || || || || || || || ||
, 2
If the refrigerant is flammable, the basic refrigeration cycle ___________ - ✔✔does not
|| || || || || || || || || || || || ||
change
Equipment with flammable refrigerant requires a ___________-colored marking on all
|| || || || || || || || || ||
process tubes and service connections. - ✔✔red
|| || || || || ||
High-temperature/high pressure refrigerant vapor flows from the compressor into the || || || || || || || || || ||
___________ - ✔✔condenser || ||
The ___________ receives a low pressure/low temperature refrigerant vapor and discharges
|| || || || || || || || || || ||
a high pressure/high-temperature vapor. - ✔✔compressor
|| || || || ||
The ___________ is fed high-pressure, subcooled liquid refrigerant and it feeds low-
|| || || || || || || || || || ||
pressure/low-temperature liquid to the evaporator. - ✔✔metering device || || || || || || ||
Most compressors require ___________ to operate properly, which is specified by the
|| || || || || || || || || || || ||
manufacturer. - ✔✔lubrication (oil) || || ||
The ___________ is heat transfer component located on the low-pressure side of the
|| || || || || || || || || || || || ||
system. - ✔✔evaporator || ||
The two types or classes of metering devices are ___________ and ___________ - ✔✔fixed,
|| || || || || || || || || || || || ||
adjustable
||
Additional components that may be installed on the low side of a refrigeration circuit are
|| || || || || || || || || || || || || || ||
___________ and ___________. - ✔✔suction line driers, accumulators
|| || || || || || ||
