The absorption factor is defined as (where, S₁ = slope of the equilibrium curve, S₂ = slope of the operating line)

Process Equipment and Plant Design
The absorption factor is defined as (where, S₁ = slope of the equilibrium curve, S₂ = slope of the operating line)

1/S₁.S₂

S₁.S₂

S₂/S₁

S₁/S₂

1/S₁.S₂

S₁.S₂

S₂/S₁

S₁/S₂

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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

Eight times

Equal to

Twice

Half

Eight times

Equal to

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Process Equipment and Plant Design
Practical dividing line between a ductile and brittle materials is suggested, when the ultimate elongation is about 5%. Generally, larger the knuckle radius, stronger is the corner torus section of a head. The knuckle radius provided should be less than __________ of the head.

3 times the thickness

Either A or B, whichever is smaller

6% of I.D.

Either A or B, whichever is larger

3 times the thickness

Either A or B, whichever is smaller

6% of I.D.

Either A or B, whichever is larger

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Process Equipment and Plant Design
The buckling tendency of compression members is always in the direction of the

Axis of the load

None of these

Perpendicular to the axis of the load

Least radius of gyration

Axis of the load

None of these

Perpendicular to the axis of the load

Least radius of gyration

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Process Equipment and Plant Design
Pick out the wrong statement about distillation operation

Distillation under vacuum is a substitute for steam distillation

In differential (simple) distillation, the vapour is removed as soon as it is formed without appreciable condensation

Flash distillation, differential distillation & steam distillation are all continuous distillation processes

In flash (equilibrium) distillation, a definite fraction of liquid is vaporised in such a way that the evolved vapour & residual liquids are in equilibrium with each other

Distillation under vacuum is a substitute for steam distillation

In differential (simple) distillation, the vapour is removed as soon as it is formed without appreciable condensation

Flash distillation, differential distillation & steam distillation are all continuous distillation processes

In flash (equilibrium) distillation, a definite fraction of liquid is vaporised in such a way that the evolved vapour & residual liquids are in equilibrium with each other

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Process Equipment and Plant Design
The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.

One fourth

Half

Three fourth

Equal to

One fourth

Half

Three fourth

Equal to

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Process Equipment and Plant Design

Process Equipment and Plant Design The absorption factor is defined as (where, S₁ = slope of the equilibrium curve, S₂ = slope of the operating line)

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 The buckling tendency of compression members is always in the direction of the

Process Equipment and Plant Design Pick out the wrong statement about distillation operation

Process Equipment and Plant Design The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.

Process Equipment and Plant Design
The absorption factor is defined as (where, S₁ = slope of the equilibrium curve, S₂ = slope of the operating line)

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
The buckling tendency of compression members is always in the direction of the

Process Equipment and Plant Design
Pick out the wrong statement about distillation operation

Process Equipment and Plant Design
The clearance between two tubes in a shell and tube heat exchanger is known as 'ligament', whose minimum value is __________ the outside diameter of the tube, but in no case it should be less than 4.5 mm.