What type of refrigerants - Study guides, Class notes & Summaries
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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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UPDATED EPA 608 QUESTIONS AND ANSWERS 2024
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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 least harmful...
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EPA 608 EXAM QUESTIONS AND 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 least harmful...
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Seattle ROL All Possible Questions and Answers with complete solution
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According to the SMC group, #2 refrigerants are - Toxic, flammable, explosive under certain 
conditions, and includes ammonia and SO. 
A hermetic system is a totally enclosed refrigeration system when the - Motor and compressor are 
sealed within the same system with the refrigerant. 
A heat pump has what type of valve that redirects refrigerant flows from heating to cooling? - A 
four way reversing valve 
A capillary tube system responds to an overcharge by - Head pressure. 
A capillary tube sy...
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EPA 608 Practice exam type 1 solved correctly
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EPA 608 Practice exam type 1 solved correctly The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is_______. Restricted to technicians who are EPA certified and refrigerant recovery 
A small Pliance is defined as a system that is Manufactured, fully charged, and hermetically sealed in a factory with a charge of 5 pounds or less 
A __________ recovery device can be use for type 1 small appliance applications or type 2 applications if the total charge is below 15 pounds. System dependent 
Y...
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C20 TEST 4 EXAM 2024 WITH 100% ACCURATE SOLUTIONS
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When you replace a capacitor, the replacement can be ______ the rating of the current capacitor. 
 
10% under 
10% over 
15% over 
20% over - ANSWER ☑☑10 % over 
 
How many acres of flooded land would be considered a flood? 
 
1/2 acre 
1 acre 
2 acres 
3 acres - ANSWER ☑☑2 acres 
 
What is the minimum overlap for aluminum tape? 
 
2" 
1" 
3/4" 
1/2" - ANSWER ☑☑1" 
 
Which of the following is not a type of compressor? 
 
crew 
combustion 
scroll 
centrifugal - ANSWER ☑☑c...
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Z-51 Written Exam Questions and Complete Solutions.
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Z-51 Written Exam Questions and Complete Solutions 
 
In a steam turbine, what is the function of a Kingsbury thrust bearing? 
 
A) Maintain first stage steam pressure. 
B) Compensate for coupling misalignment. 
C) Adjust shaft torque at start up. 
D) Maintain axial positioning of the rotor shaft. - Answer: D) Maintain axial positioning of the rotor shaft. 
 
The ratio of actual pressure of water pressure in the atmosphere to the saturated pressure of given temperature is 
 
A) partial pressure....
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HVAC EPA 608 CORE TYPE 1,2,3 QUESTIONS & ANSWERS
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What does ozone in the stratosphere above the earth consist of? - Answer-Molecules containing 3 oxygen atoms 
 
Which of the following refrigerants has the lowest global warming potential? - Answer-R-600a 
 
Which of the following gases is used as the baseline measurement for global warming potential? - Answer-Carbon Dioxide 
 
Which type of refrigerant typically has the lowest global warming potential? - Answer-HFO's 
 
What is the state of the refrigerant entering the compressor of a refriger...
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EPA 608 Certification, EPA 608 Exam Study Questions and Answers Graded A With Complete Solutions 2024
- Exam (elaborations) • 24 pages • 2024
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November 14, 1994 - What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? 
 
Memorize it, ya'll. - 1987- 
Montreal Protocol 
 
July 1 1992- 
Violation to vent CFCs or HCFCs 
 
Nov 15 1993- 
Recovery/Recycling equipment must be certified and labeled by EPA 
AND 
Before this date recovery equipment needed to be capable of removing 80% of the refrigerant, w or wo compressor, or 4 in Hg 
After this date recovery equipment needs to be capable of ...
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EPA 608 Certification Exam Guide Questions with Correct Answers Graded A 2024-2025
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November 14, 1994 - What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? 
 
Memorize it, ya'll. - 1987- 
Montreal Protocol 
 
July 1 1992- 
Violation to vent CFCs or HCFCs 
 
Nov 15 1993- 
Recovery/Recycling equipment must be certified and labeled by EPA 
AND 
Before this date recovery equipment needed to be capable of removing 80% of the refrigerant, w or wo compressor, or 4 in Hg 
After this date recovery equipment needs to be capable of ...
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