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Process Equipment and Plant Design

Process Equipment and Plant Design
Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C.

15000
7500
2500
1250

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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
Cylindrical storage tanks used for the storage of volatile liquids (e.g., naphtha) have __________ roofs.

Flat
Floating
Fixed
Conical

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Process Equipment and Plant Design
Ratio of tube length to shell diameter for a shell and tube heat exchanger is

Both B & C
4 : 1 to 8 : 1 for liquid-liquid exchanger
< 4 : 1 for gas-gas exchangers
8 : 1 to 12 : 1 for both liquid-liquid and gas-gas heat exchangers

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Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

95
80
60
45

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Process Equipment and Plant Design
In a shell and tube heat exchanger, the shortest centre to centre distance between the adjacent tubes is

None of these
Always less than the diameter of the tube
Called tube pitch
Called tube clearance

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