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Refrigerant 410A Certification Questions with 100% correct answers
Refrigerant 410A Certification Questions with 100% correct answers
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Refrigerant 410A Certification-Suva 410a
✅✅-R-410a is also known as?
-AZ-20
-Puron -
0.3 - ✅✅-The temperature glide for R-410a is less than _____ degrees Fahrenheit
over air conditioning and refrigeration operating ranges.
-Can be irritating to the skin
✅✅-Polyol Ester
-Is hydroscopic
-Has improved heat transfer characteristics over mineral oils -
(POE):
50 psig - ✅✅-The low pressure control on R-410a systems will open at:
✅✅
Absolute discharge pressure divided by absolute suction pressure -
-Compression ratio is calculated as:
40% to 70% higher - ✅✅
-Both suction and discharge pressure of R-410a systems
are _____ than R-22 systems.
Lower - ✅✅ -Because of its higher vapor capacity, the discharge temperature of
R-410a is _____ than R-22.
610 psig plus or minus 10psig - ✅✅-R-410a systems use a high pressure switch
that will open at approximately:
lose or gain - ✅✅-Subcooled liquid in the receiver may _____ subcooling,
depending on surrounding conditions.
800 psig - ✅✅ -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 - ✅✅-The flow area of a R-410a
metering device is:
It may separate (fractionate) into its component refrigerants - ✅✅-Which of the
following statements is true of R-407c
will not fractionate - ✅✅-A true azeotropic blend:
-Leaks may cause a change in composition of the blend
-It will have temperature glide
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