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Process Equipment and Plant Design

Process Equipment and Plant Design
In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of

3000
1000
5000
10000

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Process Equipment and Plant Design
Power required for agitation depends upon the

Height & properties of the liquid
All of these
Size of agitator & the tank
Agitator type & speed of agitation

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Process Equipment and Plant Design
Shortest distance between two tubes is

More in case of triangular pitch as compared to square pitch of tube layout
Called tube clearance
Called tube pitch
None of these

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Process Equipment and Plant Design
In a shell and tube heat exchanger, tube side __________ of the mass velocity.

Pressure drop is proportional to the square
Heat transfer co-efficient is proportional to 0.8th power
Both A & B
Neither A nor B

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Process Equipment and Plant Design
The distance between the top of the slots and the liquid surface when the static liquid is just ready to flow over the overflow weir is called

Static submergence
Downcomer liquid seal
Skirt clearance
None of these

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Process Equipment and Plant Design
Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs.

Floating
Fixed
Conical
Flat

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