Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the

Process Equipment and Plant Design
Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the

Number of equilibrium stages in only stripping section is to be calculated

Number of equilibrium stages required is likely to be very small

Feed is not at its bubble point

Relative volatility is close to one (e.g., separation of close boiling isomers)

Number of equilibrium stages in only stripping section is to be calculated

Number of equilibrium stages required is likely to be very small

Feed is not at its bubble point

Relative volatility is close to one (e.g., separation of close boiling isomers)

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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

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

There is no central downtake

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

The tube bundle is suspended on bracket

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

There is no central downtake

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Process Equipment and Plant Design
Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure?

At the mid thickness of the cylindrical wall

At the inner surface

At the outer surface

None of these

At the mid thickness of the cylindrical wall

At the inner surface

At the outer surface

None of these

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Process Equipment and Plant Design
Pick out the wrong statement about the design of seive plate column and the bubble cap column.

The downcomer design and the residence time in the downcomer is almost same for seive plate and bubble cap columns

Weir height for a bubble cap plate column is the same as that for a seive plate column

Weir height in case of a bubble cap plate ranges from 50 to 150 mm and is higher than the seive plate

Weir length for a bubble cap plate is the same as that for the seive plate

The downcomer design and the residence time in the downcomer is almost same for seive plate and bubble cap columns

Weir height for a bubble cap plate column is the same as that for a seive plate column

Weir height in case of a bubble cap plate ranges from 50 to 150 mm and is higher than the seive plate

Weir length for a bubble cap plate is the same as that for the seive plate

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Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

1

80

8

180

1

80

8

180

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Process Equipment and Plant Design
A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is

Shear

Elongation

Deformation

Bending

Shear

Elongation

Deformation

Bending

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Process Equipment and Plant Design

Process Equipment and Plant Design Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the

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

Process Equipment and Plant Design Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure?

Process Equipment and Plant Design Pick out the wrong statement about the design of seive plate column and the bubble cap column.

Process Equipment and Plant Design In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

Process Equipment and Plant Design A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is

Process Equipment and Plant Design
Smoker's equation for the calculation of number of equilibrium stages in a continuous binary distillation column is used, when the

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

Process Equipment and Plant Design
Where does the maximum tensile strength occur in a thick cylindrical vessel subjected to internal pressure?

Process Equipment and Plant Design
Pick out the wrong statement about the design of seive plate column and the bubble cap column.

Process Equipment and Plant Design
In a distillation column, the minimum residence time for liquid in the downspout is about __________ seconds.

Process Equipment and Plant Design
A shell may by termed as thin if its thickness to diameter ratio is less than 0.1. The factor which can be neglected in the calculation of membrane stresses is