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
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

15-20

10-12.5

5-7.5

2.5-3.0

15-20

10-12.5

5-7.5

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Process Equipment and Plant Design
Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger?

Disk and doughnut baffle

25% cut segmental baffle

Orifice baffle

75% cut segmental baffle

Disk and doughnut baffle

25% cut segmental baffle

Orifice baffle

75% cut segmental baffle

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Process Equipment and Plant Design
Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as

Δp = G2

Δp = G0.5

Δp = 1/G0.6

Δp = G

Δp = G2

Δp = G0.5

Δp = 1/G0.6

Δp = G

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Process Equipment and Plant Design
Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the

Neither A nor B

Practical limit reached, due to low heat transfer rate because of inadequate temperature difference

Both A & B

Economic limit reached, when the plant cost exceeds the saving of steam

Neither A nor B

Practical limit reached, due to low heat transfer rate because of inadequate temperature difference

Both A & B

Economic limit reached, when the plant cost exceeds the saving of steam

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Process Equipment and Plant Design
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

1.2-1.5

0.2-0.5

0.1-0.2

0.4-0.9

1.2-1.5

0.2-0.5

0.1-0.2

0.4-0.9

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

Providing a higher skirt clearance or a higher weir

All of these

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

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

Providing a higher skirt clearance or a higher weir

All of these

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

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

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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.

Process Equipment and Plant Design Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger?

Process Equipment and Plant Design Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as

Process Equipment and Plant Design Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the

Process Equipment and Plant Design The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

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

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
Which of the following is the most common type of baffle used in industrial shell and tube heat exchanger?

Process Equipment and Plant Design
Pressure drop (Δp) and the superficial gas mass velocity (G) in case of packed absorption tower operating in the preloading range are related as

Process Equipment and Plant Design
Number of evaporators which can be used in service in a multiple effect evaporation system is limited by the

Process Equipment and Plant Design
The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

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