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REFRIGERANT 410A CERTIFICATION
2026 QUESTIONS AND ANSWERS | A+
GRADED | WITH EXPERT SOLUTIONS
R-410a is also known as? - correct answer --Suva 410a
-AZ-20
-Puron
The temperature glide for R-410a is less than _____ degrees
Fahrenheit over air conditioning and refrigeration operating
ranges. - correct answer -0.3
Polyol Ester (POE): - correct 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: -
correct answer -50 psig
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Compression ratio is calculated as: - correct answer -Absolute
discharge pressure divided by absolute suction pressure
Both suction and discharge pressure of R-410a systems are
_____ than R-22 systems. - correct answer -40% to 70% higher
Because of its higher vapor capacity, the discharge temperature
of R-410a is _____ than R-22. - correct answer -Lower
R-410a systems use a high pressure switch that will open at
approximately: - correct answer -610 psig plus or minus 10psig
Subcooled liquid in the receiver may _____ subcooling,
depending on surrounding conditions. - correct 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: - correct answer -
800 psig
REFRIGERANT 410A CERTIFICATION
2026 QUESTIONS AND ANSWERS | A+
GRADED | WITH EXPERT SOLUTIONS
R-410a is also known as? - correct answer --Suva 410a
-AZ-20
-Puron
The temperature glide for R-410a is less than _____ degrees
Fahrenheit over air conditioning and refrigeration operating
ranges. - correct answer -0.3
Polyol Ester (POE): - correct 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: -
correct answer -50 psig
, Page | 2
Compression ratio is calculated as: - correct answer -Absolute
discharge pressure divided by absolute suction pressure
Both suction and discharge pressure of R-410a systems are
_____ than R-22 systems. - correct answer -40% to 70% higher
Because of its higher vapor capacity, the discharge temperature
of R-410a is _____ than R-22. - correct answer -Lower
R-410a systems use a high pressure switch that will open at
approximately: - correct answer -610 psig plus or minus 10psig
Subcooled liquid in the receiver may _____ subcooling,
depending on surrounding conditions. - correct 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: - correct answer -
800 psig
