Chemical Engineering · all questions

Mass Transfer
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

656

Questions

21/33

Page

Pick an option on a question to see the right answer and solution.

Q401

McCabe-Thiele method

Select an option to see the answer and solution.

Q402

For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).

Select an option to see the answer and solution.

Q403

Molecular distillation is

Select an option to see the answer and solution.

Q404

Pick out the wrong statement.

Select an option to see the answer and solution.

Q405

Molecular seives are porous

Select an option to see the answer and solution.

Q406

Air at a particular humidity is heated in a furnace. The new dew point

Select an option to see the answer and solution.

Q407

The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Select an option to see the answer and solution.

Q408

With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent

Select an option to see the answer and solution.

Q409

During bottling of cold drinks (e.g. Pepsi), the main resistance to mass transfer for the absorption of carbon dioxide in water lies in the

Select an option to see the answer and solution.

Q410

1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is

Select an option to see the answer and solution.

Q411

Decoction refers to the use of solvent

Select an option to see the answer and solution.

Q412

Selectivity of the solvent used in solvent extraction should be

Select an option to see the answer and solution.

Q413

If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that

Select an option to see the answer and solution.

Q414

The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

Select an option to see the answer and solution.

Q415

Can the efficiency of a plate in the distillation tower be greater than 100%?

Select an option to see the answer and solution.

Q416

For the same process conditions, the reflux ratio of an unlagged distillation column

Select an option to see the answer and solution.

Q417

The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

Select an option to see the answer and solution.

Q418

Pick out the wrong statement

Select an option to see the answer and solution.

Q419

Pick out the wrong statement.

Select an option to see the answer and solution.

Q420

Water-ethyl alcohal solution can be concentrated (in respect of alcohal concentration) by __________ distillation.

Select an option to see the answer and solution.

Prev 19 20 21 22 23 Next