In order to prevent salt water contamination...

Question 1 of 270705eccef9cbacbc34ba4d45839

In order to prevent salt water contamination of the distillate in a flash-type evaporator, it is important to provide a positive seal around the __________.

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Question 1 of 27070

In order to prevent salt water contamination of the distillate in a flash-type evaporator, it is important to provide a positive seal around the __________.

🔍 Key Concepts

• Flash-type evaporator flow path – where seawater enters, turns to vapor, and where fresh distillate is collected • Source of contamination – think about which component separates salt water from the fresh distillate stream • Seal function – which part, if it leaks, would let salty brine get into the distillate instead of staying in the brine side

💭 Think About

• Trace the path: seawater in → heated → flashes to vapor → passes through a separation stage → condenses as distillate. At what boundary does a leak directly mix brine with distillate? • Ask yourself which choice is directly at the interface between the brine side (salty) and the distillate side (fresh) rather than just handling steam or air. • Consider which component’s job is mainly to shape spray, remove droplets, vent air/steam, or control flow, versus which one must absolutely not allow liquid brine to bypass it.

✅ Before You Answer

• Identify which component is closest to the phase separation zone (where brine and vapor separate) and could let liquid brine shortcut into the distillate if the seal fails. • Verify which items (spray caps, demisters, vents, orifice plate) normally contact liquid brine versus mostly vapor or steam. • Confirm which part’s failure would immediately show up as high salt content in the distillate rather than just reduced capacity or efficiency.