A2L Exam Questions With Answers

A2L EXAM QUESTIONS WITH ANSWERS
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The AIM Act will phase-down production and importation
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of ___________ - CORRECT ANSWERS ✔✔HFCs
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EPA SNAP 23 approved the use of ___________ refrigerants
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in the air conditioning sector, subject to use restrictions -
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CORRECT ANSWERS ✔✔A2L |\ |\




The HVACR industry is currently transitioning away from
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HFCs to ___________ - CORRECT ANSWERS ✔✔HFOs & HFO
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blends


___________ is used as a baseline measurement for global
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warming potential and has a value of 1. - CORRECT
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ANSWERS ✔✔CO2 |\




Flammable refrigerants will only be used in ___________. -
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CORRECT ANSWERS ✔✔new equipment |\ |\ |\




Refrigerants are ___________ than air and can displace
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oxygen, leading to suffocation or asphyxiation. -
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CORRECT ANSWERS ✔✔heavier |\ |\

,Refillable cylinders (recovery tanks) should not be filled
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beyond ___________ of their maximum capacity - CORRECT
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ANSWERS ✔✔80%
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Refrigerant cylinders should be transported in the
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___________ position. - CORRECT ANSWERS ✔✔upright
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DOT rules also prohibit smoking within ___________ feet of
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flammable gases. - CORRECT ANSWERS ✔✔25 |\ |\ |\ |\ |\




Tools used during the installation or service of systems
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charged with a flammable refrigerant must be ___________.
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- CORRECT ANSWERS ✔✔rated for use with flammable
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refrigerants


If the refrigerant is flammable, the basic refrigeration
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cycle ___________ - CORRECT ANSWERS ✔✔does not
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change


Equipment with flammable refrigerant requires a|\ |\ |\ |\ |\ |\



___________-colored marking on all process tubes and |\ |\ |\ |\ |\ |\ |\



service connections. - CORRECT ANSWERS ✔✔red
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, High-temperature/high pressure refrigerant vapor flows |\ |\ |\ |\ |\



from the compressor into the ___________ - CORRECT
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ANSWERS ✔✔condenser |\




The ___________ receives a low pressure/low temperature
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refrigerant vapor and discharges a high pressure/high-
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temperature vapor. - CORRECT ANSWERS ✔✔compressor |\ |\ |\ |\ |\




The ___________ is fed high-pressure, subcooled liquid
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refrigerant and it feeds low-pressure/low-temperature
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liquid to the evaporator. - CORRECT ANSWERS
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✔✔metering device |\




Most compressors require ___________ to operate properly,
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which is specified by the manufacturer. - CORRECT
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ANSWERS ✔✔lubrication (oil) |\ |\




The ___________ is heat transfer component located on the
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low-pressure side of the system. - CORRECT ANSWERS
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✔✔evaporator


The two types or classes of metering devices are
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___________ and ___________ - CORRECT ANSWERS
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✔✔fixed, adjustable |\