🔍 Key Concepts

• Location and shape of item Q relative to the three‑wing device and the bowl wall • How centrifugal purifiers improve separation: thin films vs. bulk flow, and the role of surface tension • What kinds of parts are normally used for positioning/locating components versus guiding fluid flow

💭 Think About

• Trace the oil’s path from the inlet up through the three‑wing device and ask yourself what must happen to the oil exactly where Q is located • Look closely at whether Q appears to be a fixed support, a guide for the three‑wing, or a perforated/flow‑shaping surface and decide what that geometry is best suited for • Ask: At that radius in the bowl, are we more likely dealing with mechanical support of parts, establishing clearances, or conditioning the oil for better separation?

✅ Before You Answer

• Verify whether Q is in direct contact with the three‑wing device or with the oil flow itself • Check if Q shows openings, holes, or a shape that would interact with liquid rather than just hold parts in place • Confirm whether any other clearly labeled item already provides the primary positioning/support function for the three‑wing device—if so, eliminate choices that duplicate that role