🔍 Key Concepts

• Flow path through the strainer discs as shown by the arrows in the illustration • How solids are trapped relative to the spacing between the discs • The purpose of the T‑handle and scraper assembly in cleaning the discs

💭 Think About

• Trace the arrows in the diagram and decide whether clogging the outside of the discs would make it easier or harder for liquid to pass through • Think about how many turns of the T‑handle would realistically be needed to scrape and move all the way around a full stack of discs • Consider what would happen to particles that are larger than the gap between discs: can they physically pass through those gaps into the inner space? • Ask yourself whether it is more important for these parts to be magnetic or non‑magnetic near precision reduction gears and why

✅ Before You Answer

• Verify from the illustration whether flow area increases or decreases as sludge builds up on the disc edges • Check whether the design of the scraper and discs suggests multiple turns or just a single turn for full cleaning • Confirm the relationship between particle size and disc spacing: larger than the gap vs. smaller than the gap • Decide whether having magnetic discs, spacers, and scrapers would help remove metal or risk holding it in the strainer/gear system