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Process Equipment and Plant Design

Process Equipment and Plant Design
The retention time of material in a rotary dryer depends upon its

Rpm
Flights arrangement
All of these
Slope & length

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Process Equipment and Plant Design
The operating velocity in the absorption tower is usually 40-50% of the flooding velocity. Packed absorption towers are normally designed for a pressure drop of about __________ mm of water column per metre height of packing.

100-150
1000-1500
20-40
43835

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Process Equipment and Plant Design
Scale up problem in design based on the similarity concept takes into account __________ similarity.

Kinematic
Dynamic
Geometrical
All of these

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Process Equipment and Plant Design
25 per cent cut segmental baffle means that the baffle

Width is 25% of its height
Height is 75% of the I.D. of the shell
Height is 25% of the I.D. of the shell
Spacing is 75% of its height

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Process Equipment and Plant Design
Longitundinal stress induced in a thin walled cylindrical storage vessel is

PD/4t
PD/2t
PD/6t
PD/3t

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Process Equipment and Plant Design
In a multipass shell and tube heat exchanger, the problem of differential expansion between the shell and tube passes is taken care of by using a

Floating head tube sheet
Either A or B
U-bend
Neither A nor B

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