Viscous & heat sensitive liquids are concentrated in _____________ evaporators?
Correct answer: D. Agitated film
- A. Open pan
- B. Long tube
- C. None of these
- D. Agitated film
Explanation
Agitated-film evaporators provide rapid heat transfer with short residence time, making them suitable for viscous or heat-sensitive liquids. Open-pan and ordinary long-tube evaporators expose such liquids to less suitable heating conditions.
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