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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. [Wrong Answer] |
B. | area of central downtake is equal to 40 to 100% of total cross-sectional area of the surrounding tube. [Wrong Answer] |
C. | liquor is inside the tube while the steam is outside the tube. [Wrong Answer] |
D. | all (a), (b) & (c). [Correct Answer] |