🔍 Key Concepts

• Flash-type evaporator flow path – know the order in which seawater, vapor, and distillate pass through each heat exchanger. • Function of an air ejector condenser – what stream is it trying to condense and where that condensate logically goes next. • Difference between feed heaters, distilling condensers, and distillate coolers – what each one handles (seawater, vapor, or fresh water).

💭 Think About

• Mentally trace the vapor produced in the flash chamber: after non‑condensable gases are removed by the air ejector, what happens to the steam that is drawn with them? • Ask yourself: which component in the system is already designed to condense vapor associated with the distillation process, making it a natural place to combine the air ejector condenser? • Consider which answer choices normally deal with fresh distillate versus those that handle seawater feed; which pairing would be most efficient and compact in a modern package unit?

✅ Before You Answer

• Verify which piece of equipment’s primary duty is condensing vapor from the evaporator, not heating feed or simply cooling finished product. • Check which component normally operates with cooling seawater on one side and vapor on the other, similar to what an air ejector condenser needs. • Eliminate any option that mainly handles temperature conditioning of liquid water (feed or product) rather than condensing a vapor mixture.