In a vertical short tube evaporator (Calendria type) the

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In a vertical short tube evaporator (Calendria type), the

A. Tube dia of 2.5-7.5 cms, tube length of 75-200 cms and cylinderical drum dia of 1-6 metres are normally used

B. Area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube

C. Liquor is inside the tube while the steam is outside the tube

D. All of the above

Answer: Option D

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