EPA 608 Type I · Substitute Refrigerants & Oils · Medium
Which oil is most commonly used with HFC-134a in small appliances?
Answer: C. Polyolester (POE).
- AMineral oil.
- BAlkylbenzene (AB).
- CPolyolester (POE).✓ Correct
- DPolyalkylene Glycol (PAG).
Why C is right
POE oil is the standard synthetic lubricant for stationary HFC applications.
More Type I questions
- What was the primary HFC replacement for R-12 in household refrigerators?
- Who is responsible for making sure the refrigerant was removed from a refrigerator before it is scrapped?
- How long must a final processor keep the signed statements for disposed small appliances?
- Why isn't a ductless mini-split that holds only 3 lbs of refrigerant a small appliance?
- What score is needed to pass a mail-in Type I test?
Go deeper with the study guide A2L Refrigerants and the R-410A Transition: A Tech’s Guide, try the free 10-question test or browse all EPA 608 practice questions.
A practice question written for study, checked against 40 CFR Part 82, Subpart F. It is not an official EPA exam question, and this site is not affiliated with the U.S. EPA.