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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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EPA 608 Type 2 Test Questions With Answers
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EPA 608 Type 2 Test Questions With Answers 
 
Technicians maintaining, servicing, repairing or disposing of high pressure or very high-pressure appliances, except small appliances and MVAC, must be certified either as a Universal Technician or a ______ ___. - CORRECT ANSWER Type 2 
 
After the installation of any type of system, the unit should be pressurized with _____ and _____ checked. - CORRECT ANSWER nitrogen leak 
 
Nitrogen is an ______ gas. - CORRECT ANSWER...
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EPA 608 Type III Complete Questions and Solutions!
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EPA 608 Type III Complete Questions and SolutioWhat do R-11 and R-123 refrigerants have in common? 
 
A. They are oxygen depleting 
B. They are Class I and II substances as defined by the EPA 
C. Both A and B 
D. Neither A nor B - ANSWER C. Both A and B 
 
What is the required evacuation level for recovering refrigerant from a low-pressure appliance with a recovery machine manufactured before November 15, 1993? 
 
A. 0 psig 
B. 4" Hg 
C. 10 A Hg 
D. 25" Hg - ANSWER D. 25" Hg 
 
How is frost ...
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EPA 608 Type 3 Questions & Answers(Graded A+)
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EPA 608 Type 3 Questions & Answers(Graded A+)On low pressure chillers, moisture typically enters the refrigerant system through - ANSWER air leaks from areas with gaskets or fittings 
 
The maximum test pressure for leak testing a low pressure centrifugal is: - ANSWER 10 psig 
 
Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller - ANSWER ... 
 
A hydrostatic tube test kit is used to: - ANSWER determine if a tube leaks 
 
Commercial and industrial proc...
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EPA 608 (TYPE II) Exam Accurate Questions & Answers!!
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EPA 608 (TYPE II) Exam Accurate Questions & AnswWhen a new system has been assembled, the first thing to do is? - ANSWER 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? - ANSWER 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 ...
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EPA 608 Type III Accurate Questions & Answers!!
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EPA 608 Type III Accurate Questions & Answers!!EPA 608 Type III Accurate Questions & Answers!! 
How is frost best removed from a sight glass? 
 
What do R-11 and R-123 refrigerants have in common? 
 
A. They are oxygen depleting 
B. They are Class I and II substances as defined by the EPA 
C. Both A and B 
D. Neither A nor B - ANSWER C. Both A and B 
 
What is the required evacuation level for recovering refrigerant from a low-pressure appliance with a recovery machine manufactured before Novemb...
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EPA 608 Type 3 Accurate Questions & Ansewers!!
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EPA 608 Type 3 Accurate Questions & Ansewers!!On low pressure chillers, moisture typically enters the refrigerant system through - ANSWER air leaks from areas with gaskets or fittings 
 
The maximum test pressure for leak testing a low pressure centrifugal is: - ANSWER 10 psig 
 
Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller - ANSWER ... 
 
A hydrostatic tube test kit is used to: - ANSWER determine if a tube leaks 
 
Commercial and industrial pro...
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EPA 608 Type III Complete Questions & Solutions!!
- Exam (elaborations) • 11 pages • 2024
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What do R-11 and R-123 refrigerants have in common? 
 
A. They are oxygen depleting 
B. They are Class I and II substances as defined by the EPA 
C. Both A and B 
D. Neither A nor B - ANSWER C. Both A and B 
 
What is the required evacuation level for recovering refrigerant from a low-pressure appliance with a recovery machine manufactured before November 15, 1993? 
 
A. 0 psig 
B. 4" Hg 
C. 10 A Hg 
D. 25" Hg - ANSWER D. 25" Hg 
 
How is frost best removed from a sight glass? 
 
A. reverse ...
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HVAC: EPA 608 Certification Study Guide || 100 Questions|| Correct 100%
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Are there drop-in replacements for R-12 systems? Why or why not? - ANSWER No because the new refrigerants are incompatible with the oils and lubricants used in R-12 systems. 
 
What type of oil is used in R-134a and what oils will it mix with? - ANSWER Ester based oils and they do not mix with other oils 
 
What type of lubricant is used with HCFCs? - ANSWER Alkylbenzene lubricant 
 
What is difference b/w ternary blend a azeotropic blend? - ANSWER Ternary blends are three-part mixtures whereas ...
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EPA SECTION 608 TYPE I, TYPE II , TYPE III Correct 100%
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What is typically used on small appliances as a service aperture or other device for adding or removing refrigerant? 
a. A straight piece of tubing that is entered using a piercing access tube. 
b. A line located 15 inches below the compressor. 
c. A valve installed at the factory which has a ¼ inch diameter and machine threads. 
d. A service aperture is not present because small appliances are exempt from this requirement. - ANSWER a. A straight piece of tubing that is entered using a piercing...
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EPA 608 Type III Correct Questions & Answers!!
- Exam (elaborations) • 11 pages • 2024
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What do R-11 and R-123 refrigerants have in common? 
 
A. They are oxygen depleting 
B. They are Class I and II substances as defined by the EPA 
C. Both A and B 
D. Neither A nor B - ANSWER C. Both A and B 
 
What is the required evacuation level for recovering refrigerant from a low-pressure appliance with a recovery machine manufactured before November 15, 1993? 
 
A. 0 psig 
B. 4" Hg 
C. 10 A Hg 
D. 25" Hg - ANSWER D. 25" Hg 
 
How is frost best removed from a sight glass? 
 
A. reverse ...
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EPA 608 Type 3 Correct Questions & Ansewers!!
- Exam (elaborations) • 10 pages • 2024
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On low pressure chillers, moisture typically enters the refrigerant system through - ANSWER air leaks from areas with gaskets or fittings 
 
The maximum test pressure for leak testing a low pressure centrifugal is: - ANSWER 10 psig 
 
Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-11 chiller - ANSWER ... 
 
A hydrostatic tube test kit is used to: - ANSWER determine if a tube leaks 
 
Commercial and industrial process refrigeration systems must be repaired wh...