Refrigerant 410A Certification Exam| Complete Exam
Questions and CORRECT Answers|| LATEST UPDATE
2025/26
-Suva 410a
-AZ-20
-Puron -CORRECTANSWER R-410a is also known as?
0.3 -CORRECTANSWER The temperature glide for R-410a is less than _____ degrees
Fahrenheit over air conditioning and refrigeration operating ranges.
-Can be irritating to the skin
-Is hydroscopic
-Has improved heat transfer characteristics over mineral oils -CORRECTANSWER
Polyol Ester (POE):
50 psig -CORRECTANSWER The low pressure control on R-410a systems will open at:
Absolute discharge pressure divided by absolute suction pressure -
CORRECTANSWER Compression ratio is calculated as:
40% to 70% higher -CORRECTANSWER Both suction and discharge pressure of R-
410a systems are _____ than R-22 systems.
, Lower -CORRECTANSWER Because of its higher vapor capacity, the discharge
temperature of R-410a is _____ than R-22.
610 psig plus or minus 10psig -CORRECTANSWER R-410a systems use a high
pressure switch that will open at approximately:
lose or gain -CORRECTANSWER Subcooled liquid in the receiver may _____
subcooling, depending on surrounding conditions.
800 psig -CORRECTANSWER When installing a liquid line filter drier on a R-410a
system, be certain that it has a pressure rating of at least:
Smaller than that of a R-22 Metering device -CORRECTANSWER The flow area of a R-
410a metering device is:
It may separate (fractionate) into its component refrigerants -CORRECTANSWER
Which of the following statements is true of R-407c
will not fractionate -CORRECTANSWER A true azeotropic blend:
-Leaks may cause a change in composition of the blend
-It will have temperature glide
Questions and CORRECT Answers|| LATEST UPDATE
2025/26
-Suva 410a
-AZ-20
-Puron -CORRECTANSWER R-410a is also known as?
0.3 -CORRECTANSWER The temperature glide for R-410a is less than _____ degrees
Fahrenheit over air conditioning and refrigeration operating ranges.
-Can be irritating to the skin
-Is hydroscopic
-Has improved heat transfer characteristics over mineral oils -CORRECTANSWER
Polyol Ester (POE):
50 psig -CORRECTANSWER The low pressure control on R-410a systems will open at:
Absolute discharge pressure divided by absolute suction pressure -
CORRECTANSWER Compression ratio is calculated as:
40% to 70% higher -CORRECTANSWER Both suction and discharge pressure of R-
410a systems are _____ than R-22 systems.
, Lower -CORRECTANSWER Because of its higher vapor capacity, the discharge
temperature of R-410a is _____ than R-22.
610 psig plus or minus 10psig -CORRECTANSWER R-410a systems use a high
pressure switch that will open at approximately:
lose or gain -CORRECTANSWER Subcooled liquid in the receiver may _____
subcooling, depending on surrounding conditions.
800 psig -CORRECTANSWER When installing a liquid line filter drier on a R-410a
system, be certain that it has a pressure rating of at least:
Smaller than that of a R-22 Metering device -CORRECTANSWER The flow area of a R-
410a metering device is:
It may separate (fractionate) into its component refrigerants -CORRECTANSWER
Which of the following statements is true of R-407c
will not fractionate -CORRECTANSWER A true azeotropic blend:
-Leaks may cause a change in composition of the blend
-It will have temperature glide
