EPA 608 Core · Refrigeration Fundamentals · Medium
What type of refrigerant is R-1234yf?
Answer: D. Hydrofluoroolefin (HFO).
- AHydrofluorocarbon (HFC).
- BHydrocarbon (HC).
- CChlorofluorocarbon (CFC).
- DHydrofluoroolefin (HFO).✓ Correct
Why D is right
R-1234yf is an HFO, characterized by having a double carbon bond and very low GWP.
More Core questions
- How does a zeotropic blend differ from a pure refrigerant?
- What is 'temperature glide' in a zeotropic blend?
- What causes fractionation in a zeotropic blend?
- What characterizes an azeotropic refrigerant blend (500-series)?
- Which of the following is a natural refrigerant?
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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.