Scale up problem in design based on the similarity concept takes into account __________ similarity.

Process Equipment and Plant Design
Scale up problem in design based on the similarity concept takes into account __________ similarity.

All of these

Kinematic

Dynamic

Geometrical

All of these

Kinematic

Dynamic

Geometrical

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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

2.5-3.0

5-7.5

15-20

10-12.5

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Process Equipment and Plant Design
Mc Cable Thiele method used for finding theoretical stages in a distillation column assumes that the

Liquid/vapor loading across the column remains constant

All of these

Trouton's rule is applicable

Sensible heat differences are small, because the temperature changes from tray to tray is small

Liquid/vapor loading across the column remains constant

All of these

Trouton's rule is applicable

Sensible heat differences are small, because the temperature changes from tray to tray is small

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Process Equipment and Plant Design
Liquid gradient over a tray can be minimised by

Decreasing the number of rows of caps through which the liquid flows or by decreasing the velocity of liquid flow past the caps or by reducing the distance along the tray through which the liquid must

Providing a higher skirt clearance or a higher weir

All of these

Using split flow, radial flow or cascade flow for column diameter large than 4 ft

Decreasing the number of rows of caps through which the liquid flows or by decreasing the velocity of liquid flow past the caps or by reducing the distance along the tray through which the liquid must

Providing a higher skirt clearance or a higher weir

All of these

Using split flow, radial flow or cascade flow for column diameter large than 4 ft

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Process Equipment and Plant Design
Le/D for a Tee (used as elbow, entering branch) would be

Around 90

Both B and C

More than that for Tee (used as elbow, entering run)

Less than that for Tee (used as elbow, entering run)

Around 90

Both B and C

More than that for Tee (used as elbow, entering run)

Less than that for Tee (used as elbow, entering run)

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Process Equipment and Plant Design
The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter.

0.6-0.8 times

Equal to

2 ft irrespective of (for column > 3 ft diameter)

Twice

0.6-0.8 times

Equal to

2 ft irrespective of (for column > 3 ft diameter)

Twice

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Process Equipment and Plant Design

Process Equipment and Plant Design Scale up problem in design based on the similarity concept takes into account __________ similarity.

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.

Process Equipment and Plant Design Mc Cable Thiele method used for finding theoretical stages in a distillation column assumes that the

Process Equipment and Plant Design Liquid gradient over a tray can be minimised by

Process Equipment and Plant Design Le/D for a Tee (used as elbow, entering branch) would be

Process Equipment and Plant Design The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter.

Process Equipment and Plant Design
Scale up problem in design based on the similarity concept takes into account __________ similarity.

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.

Process Equipment and Plant Design
Mc Cable Thiele method used for finding theoretical stages in a distillation column assumes that the

Process Equipment and Plant Design
Liquid gradient over a tray can be minimised by

Process Equipment and Plant Design
Le/D for a Tee (used as elbow, entering branch) would be

Process Equipment and Plant Design
The length of straight rectangular weir used on cross-flow trays is generally __________ the column diameter.