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Process Equipment and Plant Design

Process Equipment and Plant Design
Liquid redistribution should be done in a packed tower packed with raschig rings every 6 metres or __________ times the column diameter, whichever is lower.

15-20
2.5-3.0
10-12.5
5-7.5

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Process Equipment and Plant Design
Fouling factor must be included in the calculation of over all design heat transfer coefficient, when the liquid

Containing suspended solids flows at low velocity
Is highly viscous
Containing suspended solids flows at high velocity
Is of high specific gravity

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Process Equipment and Plant Design
Baffles may be eliminated for

None of these
Low viscosity liquids (< 200 poise)
High viscosity liquids (> 600 poise)
Large diameter tanks

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Process Equipment and Plant Design
Removable connection of tubes to tube sheet is called

Socket
Nipple
Ferrule
Saddle

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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.

60
45
80
95

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Process Equipment and Plant Design
__________ tower is the most suitable gas-liquid contacting device involving highly corrosive fluids.

Packed
None of these
Bubble cap plate
Sieve plate

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