Less scale formation occurs in a flash...

Question 1 / 270705eccef9cbacbc34ba4d45898

Question 1 of 270705eccef9cbacbc34ba4d45898

Less scale formation occurs in a flash evaporator than in a submerged tube evaporator because __________.

Question 1 of 27070

Less scale formation occurs in a flash evaporator than in a submerged tube evaporator because __________.

🔍 Key Concepts

• Scale formation and what causes it on heat transfer surfaces • How a flash evaporator operates compared to a submerged tube evaporator • The relationship between boiling on surfaces and scale build‑up

💭 Think About

• Think about where the actual boiling or rapid vaporization happens in each type of evaporator. Is it on the metal surface or in the bulk liquid? • Which operating condition tends to deposit dissolved salts directly onto tubes and plates: having liquid boil on them, or having liquid briefly exposed to low pressure so it flashes? • Ask yourself which choice describes a feature that truly reduces scale formation rather than something that mainly affects production rate or purity.

✅ Before You Answer

• Identify which option directly addresses how and where boiling occurs in the system • Eliminate any options that talk about product quality or rate but not about the mechanism of scale formation • Confirm which design results in less contact time of superheated surfaces with boiling saline water on the metal itself

Question 1 of 27070

Less scale formation occurs in a flash evaporator than in a submerged tube evaporator because __________.

the distillate produced has greater purity

no boiling occurs on heat transfer surfaces

evaporation occurs at a higher rate

the incoming feed is at a higher temperature

Question 1 / 270705eccef9cbacbc34ba4d45898

Question 1 of 270705eccef9cbacbc34ba4d45898

Less scale formation occurs in a flash evaporator than in a submerged tube evaporator because __________.

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Question 1 of 27070

Less scale formation occurs in a flash evaporator than in a submerged tube evaporator because __________.