Compressor burnout Study guides, Class notes & Summaries
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HVAC: EPA 608 Certification Study Guide Questions And Answers Rated 100% Correct!!
- Exam (elaborations) • 10 pages • 2024
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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 aze...
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Commercial Refrigeration FINAL TEST Exam Questions with Complete Solutions
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How is the cooling effect in a mechanical refrigeration system produced? - Answer-Evaporation of liquid refrigerant into vapor 
 
What is the primary purpose of a compressor? - Answer-It circulates and pressurizes the refrigerant vapor before the vapor Is condensed for re use 
 
Name another function that must be performed by the compressor - Answer-Is raise the pressure and temperature of the refrigerant vapor. This allows the refrigerant to condense into a liquid as it circulates through the c...
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EPA Section 608 Technician Certification Study Guide latest updated
- Exam (elaborations) • 21 pages • 2023
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What are the typical uses of the center port of gauge set? - Answer- Used during evacuation, charging and recovery procedures. 
 
What color are the gauges on a manifold gauge set? - Answer- Low pressure is blue, High pressure is red. 
 
What are the typical ranges of pressure measurements used on the gauges of a manifold gauge set? - Answer- High side is 0 to 500 PSIG; Low side is 0 to 350 PSIG and 0 to 30 in. Hg below atmospheric pressure. 
 
Is the refrigerant leaving a condenser at a high or...
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EPA 608 - actual exam 2024 with 100% correct answers(download to pass)
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On a system with an operating compressor, recovery equipment must be capable of recovering; 
90% refrigerant or achieving 4 inches of vacuum. 
 
 
 
A small appliance is defined by EPA as; 
Appliances manufactured, charged, and hermetically sealed in a factory that contain 5 lbs or less of refrigerant. 
 
 
 
Recovery equipment must be; 
Certified by an EPA-approved testing laboratory. 
 
 
 
With a non-operating system compressor, recovery equipment must be capable of recovering; 
80 percent of...
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EPA 608 Certification Study Guide HVAC Questions and Answers 100% A+ Graded Excel!!!
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EPA 608 Certification Study Guide HVAC Questions and Answers 100% A+ Graded Excel!!! 
 
Are there drop-in replacements for R-12 systems? Why or why not? - CORRECT 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? - CORRECT ANSWER-Ester based oils and they do not mix with other oils 
 
What type of lubricant is used with HCFCs? - CORRECT ANSWER-Alkylbenzene lubricant 
 
W...
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EPA Section 608 Technician Certification Study Guide | Questions and Correct Solutions | Latest Update 2024/2025 | Graded A+
- Exam (elaborations) • 32 pages • 2024
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EPA Section 608 Technician 
Certification Study Guide | 
Questions and Correct Solutions | 
Latest Update 2024/2025 | Graded 
A+ 
What are the typical uses of the center port of gauge set? - Answer - 
Used during evacuation, charging and recovery procedures. 
What color are the gauges on a manifold gauge set? - Answer -Low 
pressure is blue, High pressure is red. 
What are the typical ranges of pressure measurements used on the 
gauges of a manifold gauge set? - Answer -High side is 0 to 500 PSI...
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EPA 608 Practice exam type 1 Updated 2024/2025 Verified 100%
- Exam (elaborations) • 5 pages • 2024
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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 
Always _____________ when connecting or disconnecting refrigeration hoses. - 1.) wear safety 
eyewear and butyl-lined gloves 2.) verify the hoses are rated for the refrigerant being used 3.) avoid 
trapping liquid refrigerant in the hoses 
To reach the necessary recovery level, when using a ________, it will most likely be essential t...
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Final Review RMO Exam Questions and Complete Solutions
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Final Review RMO Exam Questions and Complete Solutions 
 
When instructed to start a reciprocating plant for Air conditioning the first thing to do is? 
 
A. TURN ON CHILLED WATER PUMPS AND OPEN THE BYPASS TO LIGHTER LOAD 
B. INSTALL LARGER FUSE TO TAKE THE INITIAL LOAD, AND THEN TURN ON THE COOLING TOWER FANS 
C. TURN ON CHILLED WATER PUMP, CONDENSER WATER PUMPS AND COOLING TOWER FANS 
D. SET THE THERMOSTAT A FEW DEGREES HIGHER - Answer: C. Turn on chilled water pump, condenser water pumps an...
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HVAC: EPA 608 Certification Study Guide | 100% Correct Answers | Verified | Latest 2024 Version
- Exam (elaborations) • 11 pages • 2024
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HVAC: EPA 608 Certification Study Guide | 
100% Correct Answers | Verified | Latest 
 
2024 Version 
 
Are there drop-in replacements for R-12 systems? Why or why not? - 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? - Ester based oils and they do not 
mix with other oils 
 
What type of lubricant is used with HCFCs? - Alkylbenzene lubricant 
 
What is difference b/w ternar...
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EPA 608 (2023) Exam with correct Answers
- Exam (elaborations) • 10 pages • 2023
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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 ha...
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