A2L CORE 1 EXAM 2025 QUESTIONS
AND ANSWERS
The AIM Act will phasedown production and importation of - ANS HFC's by 85% over the
next 15 years
EPA SNAP 23 approved the use of what refrigerants in the air conditioning sector subject to use
restrictions - ANS A2L
The HVACR industry is currently transitioning away from HFCs to - ANS HFOs, HFO Blends,
and HCs
CO2 is the baseline measurement for GWP and has a value of - ANS 1
1
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@COPYRIGHT SIRJOEL 2025/2026
, Flammable refrigerants will only be used in - ANS New systems that are designed to mitigate
risks and allowed by appropriate codes and standards
Refrigerants are ____ than air and can displace oxygen leading to suffocation or asphyxiation -
ANS Heavier
Refillable cylinders (recovery tanks) should not be filled beyond what percentage of their
maximum capacity? - ANS 80%
Refrigerant cylinders should be transported in what position? - ANS Upright
DOT rules also prohibit smoking within - ANS 25 Feet of flammable gases
Tools used during the installation or service of systems charged with a flammable refrigerant
must be - ANS No spark and no arc
If the refrigerant is flammable the basic refrigeration cycle - ANS Does not change
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@COPYRIGHT SIRJOEL 2025/2026
AND ANSWERS
The AIM Act will phasedown production and importation of - ANS HFC's by 85% over the
next 15 years
EPA SNAP 23 approved the use of what refrigerants in the air conditioning sector subject to use
restrictions - ANS A2L
The HVACR industry is currently transitioning away from HFCs to - ANS HFOs, HFO Blends,
and HCs
CO2 is the baseline measurement for GWP and has a value of - ANS 1
1
Page
@COPYRIGHT SIRJOEL 2025/2026
, Flammable refrigerants will only be used in - ANS New systems that are designed to mitigate
risks and allowed by appropriate codes and standards
Refrigerants are ____ than air and can displace oxygen leading to suffocation or asphyxiation -
ANS Heavier
Refillable cylinders (recovery tanks) should not be filled beyond what percentage of their
maximum capacity? - ANS 80%
Refrigerant cylinders should be transported in what position? - ANS Upright
DOT rules also prohibit smoking within - ANS 25 Feet of flammable gases
Tools used during the installation or service of systems charged with a flammable refrigerant
must be - ANS No spark and no arc
If the refrigerant is flammable the basic refrigeration cycle - ANS Does not change
2
Page
@COPYRIGHT SIRJOEL 2025/2026
