MODERN INDIAN HISTORY QUIZ

In a distillation column, with increase in the reflux ratio, the heat removed in the cooler

Increases

Decreases

Remains unaffected

And the heat required in reboiler decreases

TRUE ANSWER : ?
YOUR ANSWER : ?

When both the fluids flow concurrently in an absorber, the slope of the operating line is

1

+ ve

- ve

-1

TRUE ANSWER : ?
YOUR ANSWER : ?

High pressure at the bottom of a distillation tower handling heat sensitive materials results in

Erosion of the tower

Very efficient operation

Increased relative volatility

Thermal decomposition of bottoms

TRUE ANSWER : ?
YOUR ANSWER : ?

In case of a desorber (stripper), the

Operating line always lies below the equilibrium curve

Operating line always lies above the equilibrium curve

Temperature always increases

Temperature remains unaffected

TRUE ANSWER : ?
YOUR ANSWER : ?

Azeotropism for ethyl alcohol-water system disappears by

Decreasing pressure

Increasing temperature

No means

Increasing pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

Gaseous diffusivity at atmospheric pressure is of the order of __________ cm²/second.

5 to 10

> 10

1

1 to 5

TRUE ANSWER : ?
YOUR ANSWER : ?

For a ternery mixture, in which equilateral triangular co-ordinate is used in leaching and extraction, a __________ of the equilateral triangular co-ordinates.

Binary mixture is represented by the apex

Pure component is represented by the apex

Ternery mixture is represented by the sides

Binary mixture is represented by any point inside

TRUE ANSWER : ?
YOUR ANSWER : ?

Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Stanton

Peclet

Sherwood

Schmidt

TRUE ANSWER : ?
YOUR ANSWER : ?

As the reflux ratio decreases, the

None of these

Separation becomes more efficient

Column diameter increases

Number of plates increases

TRUE ANSWER : ?
YOUR ANSWER : ?

During constant rate drying period, vaporisation rate per unit drying surface area

Decreases with time

Does not affect the moisture content of the wet solid

Increases with time

Does not change with time

TRUE ANSWER : ?
YOUR ANSWER : ?

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