The practical representative values of HETP for a number of commercial operations lies within a range of __________ metre.

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

0.1-0.2

0.2-0.5

0.4-0.9

1.2-1.5

0.1-0.2

0.2-0.5

0.4-0.9

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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 = G0.5

Δp = G2

Δp = G

Δp = 1/G0.6

Δp = G0.5

Δp = G2

Δp = G

Δp = 1/G0.6

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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

All of these

Providing a higher skirt clearance or a higher weir

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

All of these

Providing a higher skirt clearance or a higher weir

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

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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
In a pressure vessel containing multiple openings of various dimensions at different parts, stress concentration at the edges of the opening is maximum which becomes negligibly small beyond the area covered by __________ times the hole diameter.

Twenty

Five

Two

Ten

Twenty

Five

Two

Ten

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Process Equipment and Plant Design
Hold up of material in a operating rotary drier is in the range of

0.05 to 0.15

0.8 to 0.9

0.25 to 0.50

0.5 to 0.8

0.05 to 0.15

0.8 to 0.9

0.25 to 0.50

0.5 to 0.8

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Process Equipment and Plant Design

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 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 Liquid gradient over a tray can be minimised by

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 In a pressure vessel containing multiple openings of various dimensions at different parts, stress concentration at the edges of the opening is maximum which becomes negligibly small beyond the area covered by __________ times the hole diameter.

Process Equipment and Plant Design Hold up of material in a operating rotary drier is in the range of

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
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
Liquid gradient over a tray can be minimised by

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
In a pressure vessel containing multiple openings of various dimensions at different parts, stress concentration at the edges of the opening is maximum which becomes negligibly small beyond the area covered by __________ times the hole diameter.

Process Equipment and Plant Design
Hold up of material in a operating rotary drier is in the range of