Mass Transfer MCQ Questions & Answers | Chemical Engineering

A. Anthracite coal

B. Rag paper

C. Bamboo

D. Inorganic solids

A. Form a low boiling azeotrope with one of the constituents of the mixture

B. Form a new azeotrope of low relative volatility with one of the constituents of the mixture

C. Have high latent heat of vaporisation

D. Have high viscosity to provide high tray efficiency

A. Psychrometric ratio

B. Lewis number

C. Sherwood number

D. Stantan number

A. Temperature at constant humidity

B. Humidity at constant temperature

C. Both A & B

D. Neither A nor B

A. Packing may be crushed due to thermal expansion/contraction of the components of the equipments

B. Pressure drop in the equipment will be very high

C. Viscosity variation of the fluids may cause channeling/flooding

D. None of these

A. Increases pressure drop, increases surface area

B. Increases pressure drop, decreases surface area

C. Decreases pressure drop, increases surface area

D. Decreases pressure drop, decreases surface area

A. 7

B. 70

C. 0.7

D. 150

A. Means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities

B. Increases the scale forming tendencies of water

C. Is undesirable

D. All of the above

A. Not affected by pressure

B. Affected by pressure

C. A plot of temperature vs. liquid composition

D. A plot of temperature vs. vapour composition

A. Is a static bed leaching equipment

B. Is used for extraction of oil from oilseed

C. Is a centrifugal extractor

D. Employs only counter-current extraction