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Process Equipment and Plant Design

Process Equipment and Plant Design
Maximum allowable vapour velocity in a bubble cap tower is determined by the

None of these
Vapour density
Entrainment considerations
Diameter of the column

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Process Equipment and Plant Design
Bubble cap diameter used for the distillation column having diameter ranging from 1.5 to 4.5 metres is about __________ mm.

100
10
150
50

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Process Equipment and Plant Design
Floating head heat exchangers are used for the

Counter-current heat transfer systems
Cases where temperature difference between the shell and the tubes is more (>50°C)
Heat transfer between corrosive fluids
Co-current heat transfer systems

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Process Equipment and Plant Design
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

4 A/P
√A
4 P/A
A/P

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Process Equipment and Plant Design
The raio, (properller agitator dia/tank dia) is normally taken as

0.60-0.90
0.15-030
0.5-0.65
0.75-0.85

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Process Equipment and Plant Design
Nominal size of a pipe is an indication of its __________ diameter.

Inner
Outer
None of these
Approximate

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