🔍 Key Concepts
• Study the internal construction of the compressor on the right side of the illustration and look for any oil sump or pump drawn on or near the casing.
• Compare how pressure lubrication, splash lubrication, and gravity feed would actually look in a schematic (piping, pump symbols, or an open oil bath).
• Notice whether component "A" is part of the air‑drying/aftercooler system or looks like an oil reservoir that could supply lubrication.
💭 Think About
• If lubrication were provided by a spur gear pump, where would that pump have to be mounted, and what piping would you expect to see going to and from it?
• For splash‑type lubrication, what parts inside the housing would need to dip into oil, and do you see a crankcase or sump drawn beneath the moving parts?
• Does the piping to and from component "A" appear to carry oil or air, and does its location make sense as a gravity‑fed oil source for the compressor?.
✅ Before You Answer
• Identify which arrows and shaded areas represent air flow versus oil or condensate, then match that to the choices.
• Confirm whether any symbol in the drawing clearly represents a mechanical pump; if not, reconsider the answer that relies on a gear pump.
• Before choosing, be certain you can explain in your own words how the oil would physically reach the friction surfaces in the device for the option you select.