Mass Transfer MCQs | Page - 2

Dear candidates you will find MCQ questions of Mass Transfer here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Ram Sharma • 193.86K Points
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Q. Which of the following binary systems is an example of a maximum boiling azeotrope?

(A) Water-hydrochloric acid
(B) Acetone-carbon disulphide
(C) Water-ethyl alcohol
(D) N-heptane-n-octane
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Ram Sharma • 193.86K Points
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Q. Capacity of a rotary dryer depends on its

(A) R.p.m
(B) Inclination with ground surface
(C) Both A & B
(D) Neither A nor B
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Ram Sharma • 193.86K Points
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Q. In a liquid-liquid extraction, 10 kg of a solution containing 2 kg of solute C and 8 kg of solvent A is brought into contact with 10 kg of solvent B. Solvent A and B are completely immiscible in each other whereas solute C is soluble in both the solvents. The extraction process attains equilibrium. The equilibrium relationship between the two phases is Y* = 0.9X, where Y* is the kg of C/kg of B and X is kg of C/kg of A. Choose the correct answer. 

(A) The entire amount of C is transferred to solvent B
(B) Less than 2 kg but more than 1 kg of C is transferred to solvent B
(C) Less than 1 kg of C is transferred to B
(D) No amount of C is tranferred to B
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Ram Sharma • 193.86K Points
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Q. Removal of __________ exemplifies an adsorption unit operation.

(A) Uranium from its ore
(B) Water from petrol
(C) Ammonia from coke oven gas
(D) Mustard oil from mustard seed
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Ram Sharma • 193.86K Points
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Q. Pick out the wrong statement pertaining to the analogy between equations of heat and mass transfer operations.

(A) Sherwood number in mass transfer is analogous to Nusselt number in heat transfer
(B) Prandtl number in heat transfer is analogous to Schmidt number in mass transfer
(C) Reynolds number in mass transfer is analogous to Grashoff number in heat transfer
(D) Reynolds number remains the same in both heat and mass transfer
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Ram Sharma • 193.86K Points
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Q. __________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid.

(A) Dew point
(B) Bubble point
(C) Dry bulb temperature
(D) Wet bulb temperature
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Ram Sharma • 193.86K Points
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Q. Advantage of continuous drying over batch drying is that the

(A) Drying cost per unit weight of dried product is less
(B) Product with more uniform moisture content is produced
(C) Equipment size required is smaller
(D) All of the above
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Ram Sharma • 193.86K Points
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Q. Channelling in a packed tower results from the

(A) High pressure drop
(B) Maldistribution of liquid
(C) Non-uniformity of packing
(D) Both B and C
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Ram Sharma • 193.86K Points
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Q. Pick out the wrong statement. Generally for physical adsorption, a gas of

(A) Higher molecular weight is adsorbed in preference to a gas of low molecular weight
(B) High critical temperature is adsorbed in preference to a gas of low critical temperature
(C) Low volatility is adsorbed in preference to a gas of high volatility
(D) None of these
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Q. Dew point of a gas-vapour mixture

(A) Increases with increase in pressure
(B) Decreases with decrease in pressure
(C) Decreases with temperature rise
(D) Increases with temperature rise
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