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Process Equipment and Plant Design

Process Equipment and Plant Design
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.

Less
More
Either A or B; no generalisation can be made
Same

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

Laminar flow
Plug flow
Complete back mixing
Eddy diffusivity = 0

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Process Equipment and Plant Design
Accidents in chemical plants are mostly due to

Inadequate equipment design
Faulty operating procedures
Improper layout of the equipments
Failure of equipments

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Process Equipment and Plant Design
Minimum tube pitch recommended for shell and tube heat exchangers is about __________ times the outside diameter of the tube.

3.5
1.25
2.5
1.75

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Process Equipment and Plant Design
The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure.

Ellipsoidal
Flat plate
Torispherical
Hemispherical

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Process Equipment and Plant Design
The thickness of segmental baffles (25 -35% cut truncated plates usually) is generally __________ the tube wall thickness.

Four times
Equal to
Half
Twice

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