Pick out the wrong statement pertaining to the design of a basket type evaporator.

Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a basket type evaporator.

It is used for high viscosity liquor having large rate of scaling

The tube bundle is suspended on bracket

There is no central downtake

Downtake is formed by the annular space between the bundle and the shell

It is used for high viscosity liquor having large rate of scaling

The tube bundle is suspended on bracket

There is no central downtake

Downtake is formed by the annular space between the bundle and the shell

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Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

(ph - dh)/dh

(ph - dh)/ph

(ph - dh . dt/2)/ph

(ph - dt)/ph

(ph - dh)/dh

(ph - dh)/ph

(ph - dh . dt/2)/ph

(ph - dt)/ph

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

Plug flow

Eddy diffusivity = 0

Complete back mixing

Laminar flow

Plug flow

Eddy diffusivity = 0

Complete back mixing

Laminar flow

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Process Equipment and Plant Design
In case of design of a shell and tube heat exchanger,

O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres

All of these

Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch

Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto 15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than tube diameter

O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres

All of these

Minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch

Minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto 15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than tube diameter

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Process Equipment and Plant Design
In a distillation column, bubble caps are located on trays with a pitch of __________ times the outside diameter of the caps.

1.5 to 3

1.3 to 2

2.5

1.6 to 2

1.5 to 3

1.3 to 2

2.5

1.6 to 2

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Process Equipment and Plant Design
__________ closure is the weakest enclosure for cylindrical vessels.

Conical or flat plate

Hemispherical

Elliptical

Torispherical

Conical or flat plate

Hemispherical

Elliptical

Torispherical

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Process Equipment and Plant Design

Process Equipment and Plant Design Pick out the wrong statement pertaining to the design of a basket type evaporator.

Process Equipment and Plant Design A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

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

Process Equipment and Plant Design In case of design of a shell and tube heat exchanger,

Process Equipment and Plant Design In a distillation column, bubble caps are located on trays with a pitch of __________ times the outside diameter of the caps.

Process Equipment and Plant Design __________ closure is the weakest enclosure for cylindrical vessels.

Process Equipment and Plant Design
Pick out the wrong statement pertaining to the design of a basket type evaporator.

Process Equipment and Plant Design
A perforated plate has holes of diameter dh arranged in a pitch ph. Each hole has a tube of I.D. dt passing through it. The ligament efficiency is given by

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

Process Equipment and Plant Design
In case of design of a shell and tube heat exchanger,

Process Equipment and Plant Design
In a distillation column, bubble caps are located on trays with a pitch of __________ times the outside diameter of the caps.

Process Equipment and Plant Design
__________ closure is the weakest enclosure for cylindrical vessels.