Process Equipment and Plant Design
For given number of passes, pitch & tube diameter, the maximum number of tubes that can be accommodated in a shell of tripled inside diameter will be __________ times.

About 9
About 3
Considerably more than 9
Considerably less than 9

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Process Equipment and Plant Design
Mc Cable Thiele method used for finding theoretical stages in a distillation column assumes that the

Liquid/vapor loading across the column remains constant
Trouton's rule is applicable
Sensible heat differences are small, because the temperature changes from tray to tray is small
All of these

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