Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?

Process Equipment and Plant Design
Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?

Reflux is not a saturated liquid

Sensible heat changes for vapour & liquid are negligibly small

Molar latent heat of the two components are equal

Heat of mixing of normal liquid is assumed to be zero

Reflux is not a saturated liquid

Sensible heat changes for vapour & liquid are negligibly small

Molar latent heat of the two components are equal

Heat of mixing of normal liquid is assumed to be zero

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

Liquor flows inside the tube, while the steam is outside submerging the tube

It is unsuitable for concentrating those liquids, which form a scale or deposit salt

It is suitable for process, in which the final product is a liquor instead of solid

Its usual dimensions are: tube dia = 2-3 cms; evaporator body dia = 1-4 metres and evaporator height = 2.5-4 metres

Liquor flows inside the tube, while the steam is outside submerging the tube

It is unsuitable for concentrating those liquids, which form a scale or deposit salt

It is suitable for process, in which the final product is a liquor instead of solid

Its usual dimensions are: tube dia = 2-3 cms; evaporator body dia = 1-4 metres and evaporator height = 2.5-4 metres

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Process Equipment and Plant Design
Movement of pipeline caused by thermal expansion is taken care by providing

Expansion joint

All of these

Changes in its direction

Change in the shape of pipeline

Expansion joint

All of these

Changes in its direction

Change in the shape of pipeline

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Process Equipment and Plant Design
For a cylinderical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness?

Ellipsoidal (2 : 1)

Flat plate

Conical

Hemispherical

Ellipsoidal (2 : 1)

Flat plate

Conical

Hemispherical

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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

Bending

Deformation

Elongation

Shear

Bending

Deformation

Elongation

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Process Equipment and Plant Design
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?

None of these

McCabe-Thiele's method

Ponchon-Savarit method

Sorel-Lewis method

None of these

McCabe-Thiele's method

Ponchon-Savarit method

Sorel-Lewis method

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Process Equipment and Plant Design

Process Equipment and Plant Design Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?

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

Process Equipment and Plant Design Movement of pipeline caused by thermal expansion is taken care by providing

Process Equipment and Plant Design For a cylinderical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness?

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 Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?

Process Equipment and Plant Design
Which of the following is not a valid assumption in continuous binary distillation for calculating the number of equilibrium stages by Mc-Cabe-Thiele's method?

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

Process Equipment and Plant Design
Movement of pipeline caused by thermal expansion is taken care by providing

Process Equipment and Plant Design
For a cylinderical internally pressurised vessel, which of the following closure types would withstand highest pressure, if each closure is of the same material and thickness?

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
Which of the following is not a graphical method (but is an analytical method) for the calculation of theoretical number of stages in case of continuous binary distillation?