A2L -LGWP Test Questions And All
Correct Answers.
Most, if not all, 2L refrigerants still fall under the jurisdiction of ________________________. -
Answer EPA Section 608.
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.
, Underwriters Laboratories' (UL) standards require that systems charged with a flammable
refrigerant have a label affixed to the unit that is filled out by
________________________________. - Answer the installing technician.
EPA Section 608 regulations require that if a system is charged with a flammable refrigerant, the
equipment must have ________________________ on the service and access valves which
must extend at least 1 inch in each direction. - Answer red markings
__________________________ is a measurement of the amount of heat released when a
substance, in this case, a refrigerant, burns. - Answer Heat of combustion (HOC)
The_________________________ is the minimum electrical spark energy, in millijoules (mJ),
required to ignite a flammable gas/air mixture. - Answer minimum ignition energy (MIE)
The ______________________ of a combustible gas (flammable refrigerant) is the rate at which
a flame front spreads relative to the unburned gas ahead of the flame. - Answer burning
velocity
The ________________________________ is the lowest of three calculated limits for: toxicity,
oxygen deprivation (asphyxiation), and/or flammability. - Answer refrigerant concentration
Limit (RCL)
The ________________________________ is the minimum concentration of a flammable
substance, in this case a refrigerant, that is capable of ignition when there is a sufficient mixture
of air and the substance. - Answer lower flammability limit (LFL)
________________________ can form when any fluorine-containing refrigerant undergoes
complete or incomplete combustion, or thermal decomposition. - Answer Hydrogen fluoride
(HF)
When fluorinated refrigerants decompose, they can also form a short-lived gas called
______________________. - Answer carbonyl fluoride, COF2.
Currently, the charge limit for systems containing an A3 refrigerant is
______________________. - Answer 150 grams or 5.3 ounces.
When installing or service a system that is charged with a flammable refrigerant, always keep a
Class __________________ fire extinguisher on the jobsite. - Answer B, dry-powder,
Correct Answers.
Most, if not all, 2L refrigerants still fall under the jurisdiction of ________________________. -
Answer EPA Section 608.
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.
, Underwriters Laboratories' (UL) standards require that systems charged with a flammable
refrigerant have a label affixed to the unit that is filled out by
________________________________. - Answer the installing technician.
EPA Section 608 regulations require that if a system is charged with a flammable refrigerant, the
equipment must have ________________________ on the service and access valves which
must extend at least 1 inch in each direction. - Answer red markings
__________________________ is a measurement of the amount of heat released when a
substance, in this case, a refrigerant, burns. - Answer Heat of combustion (HOC)
The_________________________ is the minimum electrical spark energy, in millijoules (mJ),
required to ignite a flammable gas/air mixture. - Answer minimum ignition energy (MIE)
The ______________________ of a combustible gas (flammable refrigerant) is the rate at which
a flame front spreads relative to the unburned gas ahead of the flame. - Answer burning
velocity
The ________________________________ is the lowest of three calculated limits for: toxicity,
oxygen deprivation (asphyxiation), and/or flammability. - Answer refrigerant concentration
Limit (RCL)
The ________________________________ is the minimum concentration of a flammable
substance, in this case a refrigerant, that is capable of ignition when there is a sufficient mixture
of air and the substance. - Answer lower flammability limit (LFL)
________________________ can form when any fluorine-containing refrigerant undergoes
complete or incomplete combustion, or thermal decomposition. - Answer Hydrogen fluoride
(HF)
When fluorinated refrigerants decompose, they can also form a short-lived gas called
______________________. - Answer carbonyl fluoride, COF2.
Currently, the charge limit for systems containing an A3 refrigerant is
______________________. - Answer 150 grams or 5.3 ounces.
When installing or service a system that is charged with a flammable refrigerant, always keep a
Class __________________ fire extinguisher on the jobsite. - Answer B, dry-powder,
