Process Equipment and Plant Design
Filtration rate is affected by the

Area of filtering surface & the viscosity of filtrate
All of these
Cake & filter medium resistance
Pressure drop across the cake & filter medium

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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

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

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a long tube vertical evaporator.

Tube dia is 3-6 cms, while tube length in 3-6 metres
Liquor level is maintained at l/3rd to 1/2 of the height of the tube
Steam is fed to the shell, whereas the liquor is filled inside the tube
None of these

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Process Equipment and Plant Design
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

Are easier to clean
Are less prone to fouling
None of these
Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less

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