Process Equipment and Plant Design
Baffles are provided in a shell and tube heat exchanger to increase the turbulence and velocity of the shell side fluid. Which of the following shaped baffles does not fall in the category of transverse baffle?

Segmental baffle
Helical type baffle
Disk type baffle
Flat plate extending across the wall

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Process Equipment and Plant Design
Bubble cap tray is the most commonly used tray in large distillation column, because

Of its flexibility and nearly constant efficiency under varying conditions of operation
It incurs less pressure drop as compared to any other try designed for the same duty
It eliminates the foaming and entrain-ment tendency during operation
None of these

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Process Equipment and Plant Design
In a bag filter, the pressure drop increases directly as the

Viscosity of the gas and inversely as density of the gas
Density of the gas, but is independent of the viscosity of the gas
Density of the gas and inversely as viscosity of the gas
None of these

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