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Process Equipment and Plant Design

Process Equipment and Plant Design
Hoop (circumferential) stress induced in a thin walled 'Horton Sphere' used for the storage of liquid ammonia under pressure is

pD/2t
pD/6t
pD/3t
pD/4t

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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

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

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Process Equipment and Plant Design
Movement of pipeline caused by thermal expansion is taken care by providing

Change in the shape of pipeline
Expansion joint
All of these
Changes in its direction

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Process Equipment and Plant Design
Value of Peclet number = 0, is the representative of

Laminar flow
Complete back mixing
Eddy diffusivity = 0
Plug flow

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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.

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

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Process Equipment and Plant Design
A rivetted joint does not fail by __________ of rivets.

Shearing
Tearing
None of these
Tearing of the plate across a row

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