🔍 Key Concepts

• Difference between separation and clarification in centrifugal oil purifiers • What happens when two immiscible liquids of different densities (like oil and water) are processed in a purifier • How a purifier handles water compared with how a clarifier handles solids

💭 Think About

• Is the term separation usually used when removing solids, or when dealing with two different liquids in the bowl? • In a lube oil purifier, what forms the interface inside the bowl, and what is being separated across that interface? • Which option mentions a process that would require two liquids with different specific gravities, rather than just trapping particles?

✅ Before You Answer

• Identify which choice involves two liquid phases rather than just solids or dissolved substances • Recall that a clarifier is typically for removing solids from oil – does that match the word used in the question? • Check which option best matches what’s removed in a centrifugal purifier operating with a water/oil interface