Refrigerant 410A Certification ACTUAL EXAM
QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+
GRADED 100% VERIFIED) LATEST VERSION 2025!!
R-410a is also known as? - (ANSWER)-Suva 410a
-AZ-20
-Puron
The temperature glide for R-410a is less than _____ degrees Fahrenheit over air
conditioning and refrigeration operating ranges. - (ANSWER)0
Polyol Ester (POE): - (ANSWER)-Can be irritating to the skin
-Is hydroscopic
-Has improved heat transfer characteristics over mineral oils
The low pressure control on R-410a systems will open at: - (ANSWER)50 psig
Compression ratio is calculated as: - (ANSWER)Absolute discharge pressure
divided by absolute suction pressure
Both suction and discharge pressure of R-410a systems are _____ than R-22
systems. - (ANSWER)40% to 70% higher
Because of its higher vapor capacity, the discharge temperature of R-410a is
_____ than R-22. - (ANSWER)Lower
, R-410a systems use a high pressure switch that will open at approximately: -
(ANSWER)610 psig plus or minus 10psig
Subcooled liquid in the receiver may _____ subcooling, depending on surrounding
conditions. - (ANSWER)lose or gain
When installing a liquid line filter drier on a R-410a system, be certain that it has a
pressure rating of at least: - (ANSWER)800 psig
The flow area of a R-410a metering device is: - (ANSWER)Smaller than that of a R-
22 Metering device
Which of the following statements is true of R-407c - (ANSWER)It may separate
(fractionate) into its component refrigerants
A true azeotropic blend: - (ANSWER)will not fractionate
When a blend is zeotropic, or near-azeotropic (NARM) - (ANSWER)-Leaks may
cause a change in composition of the blend
-It will have temperature glide
-It can fractionate
QUESTIONS WITH COMPLETE SOLUTION GUIDE (A+
GRADED 100% VERIFIED) LATEST VERSION 2025!!
R-410a is also known as? - (ANSWER)-Suva 410a
-AZ-20
-Puron
The temperature glide for R-410a is less than _____ degrees Fahrenheit over air
conditioning and refrigeration operating ranges. - (ANSWER)0
Polyol Ester (POE): - (ANSWER)-Can be irritating to the skin
-Is hydroscopic
-Has improved heat transfer characteristics over mineral oils
The low pressure control on R-410a systems will open at: - (ANSWER)50 psig
Compression ratio is calculated as: - (ANSWER)Absolute discharge pressure
divided by absolute suction pressure
Both suction and discharge pressure of R-410a systems are _____ than R-22
systems. - (ANSWER)40% to 70% higher
Because of its higher vapor capacity, the discharge temperature of R-410a is
_____ than R-22. - (ANSWER)Lower
, R-410a systems use a high pressure switch that will open at approximately: -
(ANSWER)610 psig plus or minus 10psig
Subcooled liquid in the receiver may _____ subcooling, depending on surrounding
conditions. - (ANSWER)lose or gain
When installing a liquid line filter drier on a R-410a system, be certain that it has a
pressure rating of at least: - (ANSWER)800 psig
The flow area of a R-410a metering device is: - (ANSWER)Smaller than that of a R-
22 Metering device
Which of the following statements is true of R-407c - (ANSWER)It may separate
(fractionate) into its component refrigerants
A true azeotropic blend: - (ANSWER)will not fractionate
When a blend is zeotropic, or near-azeotropic (NARM) - (ANSWER)-Leaks may
cause a change in composition of the blend
-It will have temperature glide
-It can fractionate
