- Study guides, Class notes & Summaries

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...

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11 pages

Written in 2023/2024

Grade A+

BESTSOLUTIONGURU

HVAC: EPA 608 Certification Study Guide Exam Questions and Answers Latest 2024( A+ GRADED 100% VERIFIED).

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9 pages

Written in 2023/2024

Grade A+

LECTDERRICK

Are there drop-in replacements for R-12 systems? Why or why not? CORRECT ANSWERNo 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 ANSWERAlkylbenzene lubricant What is difference b/w ternary blend a azeotropic blend? CORRECT ANSWERTernary blends are threepart mi...

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13 pages

Written in 2023/2024

Grade A+

STUDYROOM2026

HVAC: EPA 608 Certification Exam Questions and Answers Latest Updated 2024/2025 | HVAC Electricity Exam Questions and Answers & Hvac Journeyman Exam Questions and Answers Updated 2024/2025 (100% Verified)

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3 items

ExcelAcademia2026

HVAC: EPA 608 Certification Exam Questions and Answers Latest Updated 2024/2025 | HVAC NATE Heat Pump Exam Questions With Correct Answers | HVAC Electricity Exam Questions and Answers Latest & Hvac Journeyman Exam Questions and Answers Updated 2024/2025 | 100% Verified.

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4 items

DRBRIGHT2026

HVAC: EPA 608 Certification Exam Questions and Answers Latest Updated 2024/2025 (GRADED A+) What type of lubricant is used with HCFCs? CORRECT ANSWERAlkylbenzene lubricant What is difference b/w ternary blend a azeotropic blend? CORRECT ANSWERTernary blends are threepart mixtures whereas azeotropic blends are blends of two or more compounds that act like a single compound. What is the trait of a hygroscopic lubricant? CORRECT ANSWERIt absorbs (takes on) moisture What is temperature glide and...

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13 pages

Written in 2023/2024

Grade A+

ExcelAcademia2026

HVAC: EPA 608 Certification Exam Questions and Answers Latest Updated 2024/2025 (GRADED) Are there drop-in replacements for R-12 systems? Why or why not? CORRECT ANSWERNo 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 ANSWERAlkylbenzene lubricant What is diffe...

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13 pages

Written in 2023/2024

Grade A+

DRBRIGHT2026

HVAC: EPA 608 Certification Exam Questions and Answers Latest Updated 2024/2025 (GRADED) Are there drop-in replacements for R-12 systems? Why or why not? CORRECT ANSWERNo 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 ANSWERAlkylbenzene lubricant What is diffe...

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13 pages

Written in 2023/2024

Grade A+

STUDYLAB2023

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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9 pages

Written in 2023/2024

Grade A+

flyingeagle

EPA 608 Certification ALL BUNDLED HERE!!! 2024( A GRADED 100% VERIFIED BY EXPERTS ) FULL PACKED SOLUTION

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17 items

easypasstuvia

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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9 pages

Written in 2023/2024

Grade A+

easypasstuvia

EPA 608 Bundled Exams with Complete Solution | Verified Answers | 2024

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7 items

AmazingGrace

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...

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11 pages

Written in 2023/2024

Grade A+

AmazingGrace

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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17 pages

Written in 2023/2024

Grade A+

brilliantstudies

HVAC PACKAGE DEAL WITH COMPLETE SOLUTIONS ALREADY PASSED!!

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9 items

Brainarium

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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10 pages

Written in 2023/2024

Grade A+

Brainarium

EPA 608 Bundled Exams with Complete Solution | Verified | Guaranteed Success

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15 items

ClassHero

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...

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11 pages

Written in 2023/2024

Grade A+

ClassHero

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...

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11 pages

Written in 2023/2024

Grade A+

Preach

HVAC: EPA 608 Certification Study Guide Exam Q&As (Latest Update 2023) 100% Correct Answers

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22 pages

Written in 2023/2024

Grade A+

Allivia