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Process Equipment and Plant Design

Process Equipment and Plant Design
The thickness of heat transfer plates used in the plate type heat exchanger ranges from __________ mm, pressed in a single piece provided with grooves & corrugations.

44055
3.5 to 7.0
0.3 to 0.8
1.25 to 3.125

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Process Equipment and Plant Design
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Liquid gradient on the tray
Lower static submergence
Lower skirt clearance
Small downcomer liquid seal

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Process Equipment and Plant Design
Heat transfer co-efficient, hG(Kcal/hr.m² .°C) and mass velocity of air, G (kg/hr.m² ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hG = 0.0176G0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to

0.0176G1.37
1.004G0.8
HG = 1.004G0.37
HG = 0.0176G0.37

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Process Equipment and Plant Design
A binary liquid azeotropic mixture has boiling point lower than either of the components, when it shows __________ deviation from Raoult's Law.

None of these
No
Positive
Negative

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Process Equipment and Plant Design
Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to

5 cms
25 cms
40% of the I.D. of the shell
I.D. of the shell

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Process Equipment and Plant Design
Which of the following is used to set the diameter of the distillation column?

Static submergence
Length of straight rectangular weir on cross-flow tray
Number of theorectical plates
Allowable vapour velocity

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