Alkylbenzene lubricant - Study guides, Class notes & Summaries
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HVAC: EPA 608 Certification Study Guide {Questions With 100% Correct Answers} (2024 / 2025) (Verified by Expert
- Exam (elaborations) • 9 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 mixtu...
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HVAC: EPA 608 Certification Study Guide Graded A+
- Exam (elaborations) • 10 pages • 2024
- Available in package deal
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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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EPA 1 Questions and Answers | Latest Version | 2024/2025 | Graded A+
- Exam (elaborations) • 28 pages • 2024
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EPA 1 Questions and Answers | Latest 
Version | 2024/2025 | Graded A+ 
 
What does the ozone layer shield the Earth from? 
a) nuclear rays 
b) space debris 
c) ultraviolet rays from the sun 
d) infrared rays from the sun 
c) ultraviolet rays from the sun 
 
Refrigerant recovery tools must: 
a) be movable 
b) have a protective covering 
c) be rated at 20,000 BTU/hr 
d) adhere to EPA standards 
d) adhere to EPA standards 
 
Technicians violating the Clean Air Act can face: 
a) penalties 
 
2 
 
b)...
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HVAC: EPA 608 Certification Study Guide | 100 Questions with 100% Correct Answers | Verified | Latest Update 2024
- Exam (elaborations) • 11 pages • 2023
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- $13.49
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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 ternary blend a azeotropic blend? - Ternary blends are three-part mixtures 
whereas azeotropic blends are blends of...
-
HVAC: EPA 608 Certification Study Guide | Questions and Correct Solutions Latest Update 2024/2025 | Graded A+
- Exam (elaborations) • 14 pages • 2024
- Available in package deal
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- $12.49
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HVAC: EPA 608 Certification Study 
Guide | Questions and Correct 
Solutions Latest Update 2024/2025 
| Graded A+ 
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...
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HVAC: EPA 608 Certification Study Guide || 100 Questions|| Accurate 100%
- Exam (elaborations) • 9 pages • 2024
-
Available in package deal
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- $10.99
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HVAC: EPA 608 Certification Study Guide || 100 Questions|| Accurate 100%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 az...
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Epa 608 Certification Study Set Exam
- Exam (elaborations) • 9 pages • 2024
-
- $12.99
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Epa 608 Certification Study Set Exam 
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 ANSWEREster based oils and they do not mix with other oils 
What type of lubricant is used with HCFCs? - CORRECT ANSWER-Alkylbenzene 
lubricant 
What is difference b/w ternary blend a azeotropic b...
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EPA 608 glossary Questions With Complete Solutions
- Exam (elaborations) • 20 pages • 2023
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- $11.49
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AHRI correct answer: Air Conditioning, Heating, and Refrigeration Institute. Professional organization that maintains technical standards, certifies products, shares data, and conducts research. 
 
AKB correct answer: Alkylbenzene. A synthetic refrigeration lubricant that better thermal stability compared to traditional mineral oil. They can be used in systems designed for CFCs and HCFCs. 
 
Appliance correct answer: Device that contains and uses a refrigerant for household or commercial purp...
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HVAC: EPA 608 Certification Study Guide | 2023 | 100 Questions with 100% Correct Answers | Updated & Verified
- Exam (elaborations) • 16 pages • 2023
- Available in package deal
-
- $15.49
- + learn more
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 ternary blend a azeotropic blend? - Ternary blends are three-part 
mixtures whereas azeotropic blends are blends of...
-
HVAC: EPA 608 Certification Study Guide Questions With Verified Solutions| ALREADY PASSED. UPDATED
- Exam (elaborations) • 17 pages • 2023
-
- $10.99
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HVAC: EPA 608 Certification Study 
Guide Questions With Verified 
Solutions| ALREADY PASSED. 
UPDATED 
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 
Wh...
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