ESCO LOW GWP A2L PRACTICE 1 QUESTIONS WITH
ACCURATE ANSWERS
____ __ __________ is a measurement of the amount of heat released when a
substance, in this case, a refrigerant, burns. correct answer Heat of combustion
(HOC)
______ ___________ _______ can activate mechanical ventilation systems,
activate a solenoid to force the systems into a pump down, de-energize the
system completely, or a combustion of mitigation responses using control logic
electronics. correct answer Active refrigerant sensors
_______ ________ can form when any fluoride-containing refrigerant undergoes
complete or incomplete combustion, or thermal decomposition. correct answer
Hydrogen Fluoride (HF)
__________ __________ are designed and installed to prvent accumulation
and/or ignition of flammable refrigerant vapors should a leak occur. correct
answer Mitigation Strategies
Accumulation of a flammable refrigerant in a combined space can lead to a
______ ________ _____ or ____________. correct answer severe ignition event
or asphyxiation
After installation, the refrigerant piping must be ___________ __ _______ _ ____
____. correct answer pressurized to preform a leak test.
Currently, the charge limit for systems containing A3 refrigerant is ___ _____.
correct answer 150 grams / 5.3 ounces
, DOT regulations require refrigerant cylinders containing over 2.2 lbs of a 2L
refrigerant to be equipped with a ______ _______ ______ instead of a rupture
disc. correct answer Pressure Relief Valve
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. correct answer red
markings
Most, if not all, 2L refrigerants still fall under the jurisdiction of correct answer
EPA Section 608
OSHA requires that if flammable refrigerant cylinders are to be stored in an
enclosure, the enclosure is to be _______ and __________. correct answer
secured and ventilated
R-32 has a LFL of __._ correct answer 14.4%
R-32 has an MIE of __ to ___ mJ correct answer 30 to 100
R-290 has an HOC of __,___ to __,___ Btu/lb correct answer 19,000-19,200
R-410A has a RCL of ___,___ PPM. correct answer 140,000
R-454B has a RCL of __,____ PPM. correct answer 19,000
ACCURATE ANSWERS
____ __ __________ is a measurement of the amount of heat released when a
substance, in this case, a refrigerant, burns. correct answer Heat of combustion
(HOC)
______ ___________ _______ can activate mechanical ventilation systems,
activate a solenoid to force the systems into a pump down, de-energize the
system completely, or a combustion of mitigation responses using control logic
electronics. correct answer Active refrigerant sensors
_______ ________ can form when any fluoride-containing refrigerant undergoes
complete or incomplete combustion, or thermal decomposition. correct answer
Hydrogen Fluoride (HF)
__________ __________ are designed and installed to prvent accumulation
and/or ignition of flammable refrigerant vapors should a leak occur. correct
answer Mitigation Strategies
Accumulation of a flammable refrigerant in a combined space can lead to a
______ ________ _____ or ____________. correct answer severe ignition event
or asphyxiation
After installation, the refrigerant piping must be ___________ __ _______ _ ____
____. correct answer pressurized to preform a leak test.
Currently, the charge limit for systems containing A3 refrigerant is ___ _____.
correct answer 150 grams / 5.3 ounces
, DOT regulations require refrigerant cylinders containing over 2.2 lbs of a 2L
refrigerant to be equipped with a ______ _______ ______ instead of a rupture
disc. correct answer Pressure Relief Valve
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. correct answer red
markings
Most, if not all, 2L refrigerants still fall under the jurisdiction of correct answer
EPA Section 608
OSHA requires that if flammable refrigerant cylinders are to be stored in an
enclosure, the enclosure is to be _______ and __________. correct answer
secured and ventilated
R-32 has a LFL of __._ correct answer 14.4%
R-32 has an MIE of __ to ___ mJ correct answer 30 to 100
R-290 has an HOC of __,___ to __,___ Btu/lb correct answer 19,000-19,200
R-410A has a RCL of ___,___ PPM. correct answer 140,000
R-454B has a RCL of __,____ PPM. correct answer 19,000
