🔍 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.