Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

Process Equipment and Plant Design
Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

20

35

55

5

20

35

55

5

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Process Equipment and Plant Design
Pick out the wrong statement pertaining to 'Horton sphere' used for the storage of liquid ammonia.

Thickness of spherical shell is half that of the cylinderical vessel under same operating pressure condition. Besides, the ratio of surface area to volume is less for sphere than any other shape ; hen

Horton sphere is used for the storage of gases and volatile liquid at a moderate pressure of 1 to 10 kg/cm²

Horton sphere is used for the storage of liquid at sub-zero temperature at very high pressure upto 200 kg/cm²

Diameter of Horton sphere is normally 6 to 25 metres and it is supported by 6 to 12 nos. tubular or rolled section column

Thickness of spherical shell is half that of the cylinderical vessel under same operating pressure condition. Besides, the ratio of surface area to volume is less for sphere than any other shape ; hen

Horton sphere is used for the storage of gases and volatile liquid at a moderate pressure of 1 to 10 kg/cm²

Horton sphere is used for the storage of liquid at sub-zero temperature at very high pressure upto 200 kg/cm²

Diameter of Horton sphere is normally 6 to 25 metres and it is supported by 6 to 12 nos. tubular or rolled section column

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Process Equipment and Plant Design
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Lower skirt clearance

Liquid gradient on the tray

Lower static submergence

Small downcomer liquid seal

Lower skirt clearance

Liquid gradient on the tray

Lower static submergence

Small downcomer liquid seal

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Process Equipment and Plant Design
For a given design of bubble cap, the number of bubble caps to be used per tray is set by the

Diameter of the column

Allowable gas velocity through the slots

All of these

Plate spacing

Diameter of the column

Allowable gas velocity through the slots

All of these

Plate spacing

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Process Equipment and Plant Design
In a bag filter, the pressure drop increases directly as the

Density of the gas, but is independent of the viscosity of the gas

None of these

Viscosity of the gas and inversely as density of the gas

Density of the gas and inversely as viscosity of the gas

Density of the gas, but is independent of the viscosity of the gas

None of these

Viscosity of the gas and inversely as density of the gas

Density of the gas and inversely as viscosity of the gas

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Process Equipment and Plant Design
Which of the following is used to set the diameter of the distillation column?

Number of theorectical plates

Allowable vapour velocity

Length of straight rectangular weir on cross-flow tray

Static submergence

Number of theorectical plates

Allowable vapour velocity

Length of straight rectangular weir on cross-flow tray

Static submergence

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Process Equipment and Plant Design

Process Equipment and Plant Design Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

Process Equipment and Plant Design Pick out the wrong statement pertaining to 'Horton sphere' used for the storage of liquid ammonia.

Process Equipment and Plant Design In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Process Equipment and Plant Design For a given design of bubble cap, the number of bubble caps to be used per tray is set by the

Process Equipment and Plant Design In a bag filter, the pressure drop increases directly as the

Process Equipment and Plant Design Which of the following is used to set the diameter of the distillation column?

Process Equipment and Plant Design
Lessing ring is formed by the addition of a partition across the centre of a raschig ring, which results in an area increase of about __________ percent.

Process Equipment and Plant Design
Pick out the wrong statement pertaining to 'Horton sphere' used for the storage of liquid ammonia.

Process Equipment and Plant Design
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the

Process Equipment and Plant Design
For a given design of bubble cap, the number of bubble caps to be used per tray is set by the

Process Equipment and Plant Design
In a bag filter, the pressure drop increases directly as the

Process Equipment and Plant Design
Which of the following is used to set the diameter of the distillation column?