Refrigerant 410a Samenvattingen, Aantekeningen en Examens
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EPA 608 (TYPE II) Exam 2023 with correct answers
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When a new system has been assembled, the first thing to do is? 
Pressurize the system with an inert gas & leak check. 
 
 
 
After installation of a field-piped R-410A split heat pulp, the unit should first be? 
Pressurized with nitrogen then leak checked. 
 
 
 
The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & industrial process refrigeration) must be repaired when the leak rate exceeds _________ of the charge per year? 
15%
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UPDATED EPA 608 QUIZLET (2023) questions with correct answers
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the state of the refrigerant entering the metering device is? - Answer A subcooled high pressure liquid. 
 
what type of refrigerant is used in VERY high-pressure appliances? - Answer R-503 
 
what type of refrigerant is used in MEDIUM pressure appliances? - Answer R-500 
 
what type of refrigerant is used in HIGH pressure appliances? - Answer R-410A and R-22 
 
what device is located at the END of the liquid line? - Answer The expansion device. 
 
what type of refrigerants are the LEA...
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Refrigerant 410A Certification Questions and Answers Already Passed
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Refrigerant 410A Certification Questions 
 
and Answers Already Passed 
 
A full nitrogen cylinder has a pressure approx: 2500 psig 
 
A leak detector capable of sensing _____ is needed when working with R-410a. HFC 
 
A system using r-410a refrigerant has bubbles in the sight glass. Technician A says that the 
system must be low on refrigerant. Technician B says that the bubbles could be caused by the 
blended refrigerant flashing in the increasing volume of the sight glass. Who is correct? 
Te...
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(Answered) EPA SECTION 608 CORE (2021-2022 revision)
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EPA SECTION 608 CORE (2021-2022 revision) 
A disposable cylinder should be reduced to what pressure before scrapping? 
a. 0 psig 
b. 20 psig 
c. 50 psig 
d. 80 psig 
 
A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? 
a. Add R-22 after the repair is complete. 
b. Retrofit the unit to R-407C. 
c. Use recovered or recycled R-22 from the same 
owner. 
d. Top off the unit with R-410a. 
A refillable cylinder must not be filled above what ...
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EPA 608 Type 3 Questions and Answers Already Passed
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EPA 608 Type 3 Questions and Answers Already Passed On low pressure chillers, moisture typically enters the refrigerant system through air leaks from areas with gaskets or fittings 
The maximum test pressure for leak testing a low pressure centrifugal is: 10 psig 
Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller ... 
A hydrostatic tube test kit is used to: determine if a tube leaks 
Commercial and industrial process refrigeration systems must be rep...
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EPA 608 (TYPE II) Exam COMPLETE SOLUTION ( A+ GRADED 100% VERIFIED)
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EPA 608 (TYPE II) Exam COMPLETE SOLUTION ( A+ GRADED 100% VERIFIED) 
When a new system has been assembled, the first thing to do is? - ANS Pressurize the system with an inert gas & leak check. 
 
After installation of a field-piped R-410A split heat pulp, the unit should first be? - ANS Pressurized with nitrogen then leak checked. 
 
The EPA regulations require that any appliances containing more than 50 pounds of refrigerant (except for commercial & industrial process refrigeration) mus...
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Refrigerant 410A Certification: Questions & Solutions
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Refrigerant 410A Certification: Questions & Solutions
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Refrigerant 410A Certification Exam Study Questions and Answers 2024
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-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 ...
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Refrigerant 410A Certification Questions and Answers 100% Solved
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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 pr...
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EPA 608 Universal Exam With 100% Correct Answers 2023
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Refrigeration technicians who violate the Clean Air Act can: - - Correct answer-Lose 
their EPA certification, be fined, be required to appear in Federal court. 
After 1995, any supplies of CFC refrigerants to service existing units in the USA can 
only come from: - - Correct answer-recovery and recycling. 
Refrigerant that is recovered can be returned to: - - Correct answer-the same system or 
other systems owned by the same person without restriction. 
Refrigerant can not be called "reclaimed...
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