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Process Equipment and Plant Design

Process Equipment and Plant Design
Most of the storage vessels/tanks are made cylindrical, because of the fact that a cylinder

Is easy to fabricate
Has greater structural strength
Neither A nor B
Both A & B

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Process Equipment and Plant Design
Lug support is

Provided usually for vessels of much smaller height than skirt supported vessels
The most suitable for thick vertical vessel
Same as bracket support
All of these

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Process Equipment and Plant Design
In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube)

4P²/πd
4(P² - πd²/4)/πd
(P² - πd²/4)/πd
Πd/4P²

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Process Equipment and Plant Design
The average velocity in the tubes of a 1-4 heat exchanger is __________ times that in 1-1 heat exchanger having the same size & number of tubes and operated at same liquid flow rate.

2
43832
43834
4

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

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

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

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