In which of the following evaporators, steam is fed inside the tube while the liquor is outside the tube ?
Correct answer: C. Horizontal tube evaporator
- A. Long tube vertical evaporator
- B. Short tube vertical evaporator
- C. Horizontal tube evaporator
- D. None of these
Explanation
In a horizontal-tube evaporator, heating steam condenses inside the horizontal tubes while the liquor flows over the outside surfaces. This arrangement is different from the usual long-tube vertical evaporator, where liquor is inside the tubes.
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