R

Ram Sharma • 193.86K Points
Coach 

Q. 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

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