Refrigerant 410A Certification Questions and Answers 100% Solved
26 views 1 purchase
Course
ESCO
Institution
ESCO
Refrigerant 410A Certification Questions
and Answers 100% Solved
-Suva 410a
-AZ-20
-Puron ️️R-410a is also known as?
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...
Refrigerant 410A Certification Questions
and Answers 100% Solved
-Suva 410a
-AZ-20
-Puron ✔️✔️R-410a is also known as?
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
-Is hydroscopic
-Has improved heat transfer characteristics over mineral oils ✔️✔️Polyol Ester (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
-It can fractionate ✔️✔️When a blend is zeotropic, or near-azeotropic (NARM)
It should be transferred from cylinders as a liquid to avoid fractionation ✔️✔️When a blend is
zeotropic, or near azeotropic (NARM)
Cause the components to leak at uneven rates due to varying vapor pressures ✔️✔️Near-
azeotropic blend fractionation may;
None of the above ✔️✔️Blends that have fractionated, depending on the constituent make-
up, may become;
Should be charged in the liquid phase ✔️✔️To avoid fractionation, blended refrigerants:
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller GOLDTUTORS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
