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?

Molar latent heat of the two components are equal

Sensible heat changes for vapour & liquid are negligibly small

Heat of mixing of normal liquid is assumed to be zero

Reflux is not a saturated liquid

Molar latent heat of the two components are equal

Sensible heat changes for vapour & liquid are negligibly small

Heat of mixing of normal liquid is assumed to be zero

Reflux is not a saturated liquid

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Process Equipment and Plant Design
In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

1/5-1/10th

1/20-1/30th

1/2 to 1/4th

1/10-1/15th

1/5-1/10th

1/20-1/30th

1/2 to 1/4th

1/10-1/15th

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Process Equipment and Plant Design
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

4 A/P

A/P

4 P/A

√A

4 A/P

A/P

4 P/A

√A

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Process Equipment and Plant Design
Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.

Twice

Half

Equal to

Eight times

Twice

Half

Equal to

Eight times

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Process Equipment and Plant Design
An adequate clearance between the tray and the shell wall of a distillation column is provided to

Allow for thermal expansion and facilitate installation

None of these

Drain the liquid from the tray when the unit is not in operation

Avoid back-trapping

Allow for thermal expansion and facilitate installation

None of these

Drain the liquid from the tray when the unit is not in operation

Avoid back-trapping

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

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

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

None of these

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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 In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

Process Equipment and Plant Design The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

Process Equipment and Plant Design Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.

Process Equipment and Plant Design An adequate clearance between the tray and the shell wall of a distillation column is provided to

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 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
In packed towers provided with pall rings liquid redistributors are positioned at heights of every 6 metres or 5-10 times the column diameter, whichever is less. Maximum size of the pall rings should not exceed __________ of the column diameter.

Process Equipment and Plant Design
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)

Process Equipment and Plant Design
Circumferential (hoop) stress in a thin cylindrical vessel under internal pressure is __________ the longitudinal stress.

Process Equipment and Plant Design
An adequate clearance between the tray and the shell wall of a distillation column is provided to

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