Value of Peclet number = 0, is the representative of

Process Equipment and Plant Design
Value of Peclet number = 0, is the representative of

Complete back mixing

Plug flow

Laminar flow

Eddy diffusivity = 0

Complete back mixing

Plug flow

Laminar flow

Eddy diffusivity = 0

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Process Equipment and Plant Design
The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

> 7 < 15

< 30

> 20 < 50

< 7

> 7 < 15

< 30

> 20 < 50

< 7

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Process Equipment and Plant Design
The raio, (properller agitator dia/tank dia) is normally taken as

0.5-0.65

0.75-0.85

0.15-030

0.60-0.90

0.5-0.65

0.75-0.85

0.15-030

0.60-0.90

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Process Equipment and Plant Design
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less

None of these

Are less prone to fouling

Are easier to clean

Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less

None of these

Are less prone to fouling

Are easier to clean

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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.

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

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

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

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

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

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

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

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 packed absorption tower, onset of flooding usually occurs at a pressure drop of about __________ mm of water column per metre height of packing.

25-50

200-250

750-1000

50-75

25-50

200-250

750-1000

50-75

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Process Equipment and Plant Design

Process Equipment and Plant Design Value of Peclet number = 0, is the representative of

Process Equipment and Plant Design The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

Process Equipment and Plant Design The raio, (properller agitator dia/tank dia) is normally taken as

Process Equipment and Plant Design In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

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 packed absorption tower, onset of flooding usually occurs at a pressure drop of about __________ mm of water column per metre height of packing.

Process Equipment and Plant Design
Value of Peclet number = 0, is the representative of

Process Equipment and Plant Design
The difficulty of liquid distribution in packed towers is accentuated, when the ratio of tower diameter to packing diameter is

Process Equipment and Plant Design
The raio, (properller agitator dia/tank dia) is normally taken as

Process Equipment and Plant Design
In a shell and tube heat exchanger for a given heat transfer surface area, smaller diameter tubes are favoured as compared to larger diameter ones ; because the smaller diameter tubes

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 packed absorption tower, onset of flooding usually occurs at a pressure drop of about __________ mm of water column per metre height of packing.