R 410A ACTUAL EXAM FULL QUESTIONS
AND CORRECT ANSWERS GRADED A PLUS
●● A recovery cylinder which is half full of recovered R-410A at 80
degrees F, in the absence of non-condensables, will be pressurized to:
Answer: 237 psig
●● R-410A is also sold under the name _____.
Answer: SUVA 410A, Puron, Genetron AZ-20
●● On a R-410A system, _________ is an indicator of a possible leak.
Answer: Excessive subcooling maybe
●● Removal of refrigerant from a system can be accomplished by these
two basic methods:
Answer: Active and passive
●● The cylinder code for R-407C is _____.
Answer: Medium Brown (Chocolate).
●● You are recovering R-410a from a system with 15 pounds R-410A.
Your recycling equipment was manufactured AFTER November 15,
, 1993. You much reach a vacuum of at least ________ inches of vacuum
with the recovery or recycling machine.
Answer: 28.7
●● Polyolester lubricants (POEs) are used extensively with:
Answer: HFCs
●● After _________ chemical manufacturers will no longer be able to
produce R-22
Answer: January 1, 2020
●● Prior to replacing the evaporator in an operating R-410A system, the
refrigerant was recovered as a vapor and stored in a refillable cylinder.
The refrigerant:
Answer: can be charge back into the system.
●● The maximum safety-relief pressure for a disposable R-410A
cylinder is __________.
Answer: 800 psig
●● Polyolester (POE) oils stored in plastic containers will:
Answer: Absorb moisture through the plastic.
AND CORRECT ANSWERS GRADED A PLUS
●● A recovery cylinder which is half full of recovered R-410A at 80
degrees F, in the absence of non-condensables, will be pressurized to:
Answer: 237 psig
●● R-410A is also sold under the name _____.
Answer: SUVA 410A, Puron, Genetron AZ-20
●● On a R-410A system, _________ is an indicator of a possible leak.
Answer: Excessive subcooling maybe
●● Removal of refrigerant from a system can be accomplished by these
two basic methods:
Answer: Active and passive
●● The cylinder code for R-407C is _____.
Answer: Medium Brown (Chocolate).
●● You are recovering R-410a from a system with 15 pounds R-410A.
Your recycling equipment was manufactured AFTER November 15,
, 1993. You much reach a vacuum of at least ________ inches of vacuum
with the recovery or recycling machine.
Answer: 28.7
●● Polyolester lubricants (POEs) are used extensively with:
Answer: HFCs
●● After _________ chemical manufacturers will no longer be able to
produce R-22
Answer: January 1, 2020
●● Prior to replacing the evaporator in an operating R-410A system, the
refrigerant was recovered as a vapor and stored in a refillable cylinder.
The refrigerant:
Answer: can be charge back into the system.
●● The maximum safety-relief pressure for a disposable R-410A
cylinder is __________.
Answer: 800 psig
●● Polyolester (POE) oils stored in plastic containers will:
Answer: Absorb moisture through the plastic.
