Lap joints are preferred for plates having thickness __________ mm.

Process Equipment and Plant Design
Lap joints are preferred for plates having thickness __________ mm.

< 12.5

> 3

43961

> 5

< 12.5

> 3

43961

> 5

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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

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

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

Providing a higher skirt clearance or a higher weir

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

All of these

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Process Equipment and Plant Design
A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator

Is economical in operation

Both B & C

Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle

Employs high velocity, high heat transfer rate and less heating surface requirement

Is economical in operation

Both B & C

Employs a centrifugal pump placed between external downtake from vapor drum and inlet to tube bundle

Employs high velocity, high heat transfer rate and less heating surface requirement

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Process Equipment and Plant Design
In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

5 to 10

2.5 to 4.0

0.5 to 1.5

10 to 15

5 to 10

2.5 to 4.0

0.5 to 1.5

10 to 15

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Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

45

95

60

80

45

95

60

80

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Process Equipment and Plant Design
Safety valves are provided in chemical equipments to guard against excessive

Temperature

Pressure/pressure fluctuation

Turbulence

Noise

Temperature

Pressure/pressure fluctuation

Turbulence

Noise

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Process Equipment and Plant Design

Process Equipment and Plant Design Lap joints are preferred for plates having thickness __________ mm.

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

Process Equipment and Plant Design A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator

Process Equipment and Plant Design In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

Process Equipment and Plant Design A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design Safety valves are provided in chemical equipments to guard against excessive

Process Equipment and Plant Design
Lap joints are preferred for plates having thickness __________ mm.

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

Process Equipment and Plant Design
A forced circulation long tube vertical evaporator as compared to the natural circulation evaporator

Process Equipment and Plant Design
In seive plate column, holes are drilled or punched in sizes ranging from 2.5 to 12 mm (5 mm being widely used). The hole pitch is normally __________ times the hole diameter to give the required hole area.

Process Equipment and Plant Design
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.

Process Equipment and Plant Design
Safety valves are provided in chemical equipments to guard against excessive