Mass Transfer MCQs | Page - 3

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
Coach

Q. Co-current absorbers are usually used when the gas to be dissolved in the liquid is

(A) A mixture
(B) A pure substance
(C) Highly soluble
(D) Sparingly soluble
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Ram Sharma • 193.86K Points
Coach

Q. The overall mass transfer co-efficient for the absorption of SO2 in air with dilute NaOH solution can be increased substantially by 

(A) Increasing the gas film co-efficient
(B) Increasing the liquid film co-efficient
(C) Increasing the total pressure
(D) Decreasing the total pressure
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Ram Sharma • 193.86K Points
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Q. The diffusion co-efficient in m2/s. of acetic acid in benzene (liquid in liquid) is 

(A) 2.09 × 10-4
(B) 2.09 × 10-5
(C) 2.09 × 10-9
(D) 2.09 × 10-12
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Ram Sharma • 193.86K Points
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Q. The relative saturation of a partially saturated mixture of vapour and gas can be increased by __________ of the mixture.

(A) Reducing the total pressure
(B) Increasing the total pressure
(C) Reducing the temperature
(D) Both B and C
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Ram Sharma • 193.86K Points
Coach

Q. Experimental determination of __________ is done by wetted wall column method.

(A) Diffusion co-efficient
(B) Mass transfer co-efficient
(C) NTU
(D) None of these
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Ram Sharma • 193.86K Points
Coach

Q. Dew point of an air-water vapor mixture

(A) Decreases with decrease in pressure
(B) At constant humidity & total pressure is fixed
(C) Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve
(D) All of the above
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Ram Sharma • 193.86K Points
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Q. __________ extractor is used for the concentration of radioactive nuclear waste.

(A) Seive plate
(B) Pulsed column
(C) Mixer-settler
(D) Ballman
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Ram Sharma • 193.86K Points
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Q. Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre.

(A) Electrical resistance
(B) Thermal conductivity
(C) Strength
(D) None of these
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Ram Sharma • 193.86K Points
Coach

Q. Overall efficiency of the distillation column is

(A) Always more than the point efficiency
(B) Same as the Murphree efficiency
(C) The ratio of number of ideal plates to actual plates
(D) The ratio of number of actual plates to ideal plates
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Ram Sharma • 193.86K Points
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Q. Powdery materials can be guarded against caking tendency on storage by

(A) Providing irregular grain size
(B) Providing minimum percentage of voids
(C) Having maximum possible points of contact
(D) None of these
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