A2L COMPREHENSIVE ASSESSMENT PAPER
2026 COMPLETE QUESTIONS AND
ANSWERS GRADED A+
●● Refrigerant cylinders may be transported in the _________________
position.
Answer: upright or horizontal
●● When working with any refrigerant, flammable or non-flammable,
always refer the __________________________ for specific hazards
and hazard mitigation actions.
Answer: safety data sheets (SDS)
●● DOT regulations require refrigerant cylinders containing over 2.2
lbs. of a 2L refrigerant to be equipped with a
____________________________________ instead of a rupture disc.
Answer: pressure relief valve
●● OSHA requires that if flammable refrigerant cylinders are to be
stored in an enclosure, the enclosure be _____________________ and
_____________________.
Answer: secure and ventilated.
, ●● When servicing or installing equipment charged with a flammable
refrigerant, the jobsite should be evaluated for safety hazards, such as
possible ignition sources or the presence of flammable vapors
________________________________ any work.
Answer: prior to beginning
●● Specific applications and use limitations for the installation of A2L
equipment can be found in the _________________________________.
Answer: manufacturer's literature (installation manual).
●● When working with a flammable refrigerant, recommended PPE can
be found in the ________________________.
Answer: Safety Data Sheets (SDS).
●● With proper ventilation on a jobsite or work area, flammable
refrigerants can be kept below their
______________________________ should a leak occur.
Answer: lower flammability limit (LFL)
●● Accumulation of a flammable refrigerant in a confined space can
lead to a _______________________ or _________________________.
Answer: a severe ignition event or asphyxiation.
2026 COMPLETE QUESTIONS AND
ANSWERS GRADED A+
●● Refrigerant cylinders may be transported in the _________________
position.
Answer: upright or horizontal
●● When working with any refrigerant, flammable or non-flammable,
always refer the __________________________ for specific hazards
and hazard mitigation actions.
Answer: safety data sheets (SDS)
●● DOT regulations require refrigerant cylinders containing over 2.2
lbs. of a 2L refrigerant to be equipped with a
____________________________________ instead of a rupture disc.
Answer: pressure relief valve
●● OSHA requires that if flammable refrigerant cylinders are to be
stored in an enclosure, the enclosure be _____________________ and
_____________________.
Answer: secure and ventilated.
, ●● When servicing or installing equipment charged with a flammable
refrigerant, the jobsite should be evaluated for safety hazards, such as
possible ignition sources or the presence of flammable vapors
________________________________ any work.
Answer: prior to beginning
●● Specific applications and use limitations for the installation of A2L
equipment can be found in the _________________________________.
Answer: manufacturer's literature (installation manual).
●● When working with a flammable refrigerant, recommended PPE can
be found in the ________________________.
Answer: Safety Data Sheets (SDS).
●● With proper ventilation on a jobsite or work area, flammable
refrigerants can be kept below their
______________________________ should a leak occur.
Answer: lower flammability limit (LFL)
●● Accumulation of a flammable refrigerant in a confined space can
lead to a _______________________ or _________________________.
Answer: a severe ignition event or asphyxiation.
