🔍 Key Concepts

• This is a cross-section of a centrifugal purifier / separator bowl using water to open and close the bowl • The area at "L" is at the very bottom of the housing, below the operating mechanism and bowl • Think about where operating water must be stored before it is admitted to the operating slide or water channel

💭 Think About

• Trace the flow path of the operating water from its inlet down to the lowest point of the machine—where would it naturally collect before being used? • Ask yourself which of the terms given best fits a storage space versus a flow passage or the actual working space where separation/injection occurs • Compare the location of "L" with the zones closer to the nozzles and bowl discs—are those likely to be injection or pre‑injection areas, or something else?

✅ Before You Answer

• Confirm that "L" is outside and below the actual separation bowl stack and nozzles, not in the separation/disc area • Decide whether the shape and position of "L" look more like a reservoir (collection space) or a narrow channel/chamber for directing flow • Eliminate any answer choices that would logically belong inside the bowl or near the nozzles, not at the very bottom of the unit