Refrigerant - Study guides, Class notes & Summaries
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Sewage Treatment Worker Practice Test Questions and Answers 100% Correct
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Sewage Treatment Worker Practice Test Questions and Answers 100% Correct 
 
Sewage Treatment Worker Practice Test Questions and Answers 100% Correct 
 
Sewage Treatment Worker Practice Test Questions and Answers 100% Correct 
 
Sewage Treatment Worker Practice Test Questions and Answers 100% CorrectThe scale on the drawing is 1/8"=1. What is the actual length of a line that measures 2" 1/4' on the drawing? - ANSWER-6 ft? 18 ft? 
 
Which of the following measure the specific gravity of the ele...
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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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Test Bank For Modern Refrigeration and Air Conditioning 21st Edition by Andrew D. Althouse, Carl H. Turnquist, Alfred F. Bracciano, Daniel C. Bracciano, Gloria M. Bracciano 9781635638776 Chapter 1-55 Complete Guide.
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Test Bank For Modern Refrigeration and Air Conditioning 21st Edition by Andrew D. Althouse, Carl H. Turnquist, Alfred F. Bracciano, Daniel C. Bracciano, Gloria M. Bracciano 8776, 1, 6044, 1 
 
1 - Careers and Certification 
 
2 - Safety 
 
3 - Service Calls 
 
4 - Energy and Matter 
 
5 - Gases 
 
6 - Basic Refrigeration Systems 
 
7 - Tools and Supplies 
 
8 - Working with Tubing and Piping 
 
9 - Introduction to Refrigerants 
 
10 - Equipment and Instruments for Refrigerant Handling and Servic...
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Refrigerant Machine Operator Certification Practice Test Latest Update 2024-2025 Exam Questions and 100% Verified Correct Answers Guaranteed A+
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Refrigerant Machine Operator Certification Practice Test Latest Update Exam Questions and 100% Verified Correct Answers Guaranteed A+
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EPA 609 Technician Certification Questions and Answers Already Passed
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EPA 609 Technician Certification Questions and Answers Already Passed 1. T/F Ozone at ground level ans at Stratosphere is a harmful pollutant FALSE 
2. For determining the Ozone Depletion Potential __________ having been assigned a factor of 1 CFC-11 
3. Ozone layer absorbs and scatters __________ form the sun Ultraviolet light 
4. T/F R-134 is a chlorine-free refrigerant TRUE 
5. a refillable refrigerant cylinder must not be filled above _________ of its full capacity 80% 
6. T/F Ester-based sy...
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EPA 608 CERTIFICATION REFRIGERANT RECOVERY AND TRANSITION 2024 QUESTIONS WITH CORRECT ANSWERS ALREADY PASSED AND VERIFIED
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What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? - CORRECT ANSWER November 14, 1994 
1989- 
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 rem...
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fdny z51 rmo questions answered 2023 verified graded A+ already passed!
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fdny z51 rmo questions answered 2023 verified graded A+ already passed!the efficiency of the refrigerant cycle is affected by the operation of the condenser. Of the following, a more efficient centrifugal compressor operation results from 
lowering the condenser pressure 
 
 
 
In most semi hermetic compressors, the suction vapor is used for 
cools the motor 
 
 
 
The amount of refrigerant that flows through the orifices of an economizer is determined by the 
difference between the high side an...
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EPA 608 Certification • Section 608 Refrigerant Recovery and Transition
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What date was the sale of CFC's & HCFC's restricted to technicians certified in 
refrigerant recovery? - November 14, 1994 
1989- 
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 removing 90%, or 80% 
witho...
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SAE 609 Questions and Answers 100% Pass
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SAE 609 Questions and Answers 100% Pass 
The recovery process on an R-12 or R-134a A/C System should continue until a stable vacuum is held by the system for: 2 minutes 
A recycled refrigerant container has been checked and found to be above the given pressure limit for the ambient temperature 
Technician A says that the refrigerant container should be placed in a cooler storage area before use 
Technician B says that the vapor in the container should be slowly vented into a refrigerant handling...
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Low GWP refrigerant practice Questions 100% Correct!
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The minimum concentration of a refrigerant that can propagate a flame through a consistent mixture of the refrigerant and air is known as the: 
 
Acute toxicity exposure limit (ATELL). 
 
Immediately dangerous to life or health concentration (IDLH). 
 
Lower flmmability limit (LFL). 
 
Upper explosive limit (UEL). - ANSWERLower flmmability limit (LFL). 
 
The first stage of the evacuation process which removes non-condensables from a system is called: 
 
degassing. 
 
dehydration. 
 
recovery. 
...
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