Mass Transfer MCQs with answers Page - 21

Here, you will find a collection of MCQ questions on Mass Transfer. Go through these questions to enhance your preparation for upcoming examinations and interviews.

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A

Admin • 833.24K Points
Coach

Q. Weeping in a distillation column

  • (A) Increases tray efficiency
  • (B) Provides large interfacial surface for mass transfer
  • (C) Results due to very high gas velocity
  • (D) Results due to very low gas velocity

A

Admin • 833.24K Points
Coach

Q. The expression, y(1 - x)/x(1 - y) is for

  • (A) Absorption factor
  • (B) Relative volatility
  • (C) Selectivity
  • (D) Murphree efficiency

A

Admin • 833.24K Points
Coach

Q. The process employing desorption of the absorbed solute by a solvent is called

  • (A) Elution
  • (B) Osmosis
  • (C) Reverse osmosis
  • (D) Sublimation

A

Admin • 833.24K Points
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Q. In McCabe-Thiele method, at infinite reflux ratio

  • (A) Number of plates is maximum
  • (B) Overhead product is maximum
  • (C) Both the operating lines coincide with the diagram
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the

  • (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 channelling/flooding
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. A binary mixture of benzene and cyclohexane is separated by

  • (A) Flash vaporisation
  • (B) Extractive distillation
  • (C) Solvent extraction
  • (D) Ordinary distillation

A

Admin • 833.24K Points
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Q. Free flowing granular materials can be best dried in a __________ drier.

  • (A) Rotary
  • (B) Cylinder
  • (C) Drum
  • (D) Freeze

A

Admin • 833.24K Points
Coach

Q. In a packed bed absorption column, the channelling will be noted by the

  • (A) Increase in flow rate
  • (B) Sharp drop in pressure drop
  • (C) Sharp rise in pressure drop
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. The ratio of Murphree plate efficiency to point efficiency is always > 1 in a __________ flow model.

  • (A) Plug
  • (B) Perfectly mixed
  • (C) Both (A) & (B)
  • (D) Neither (A) nor (B)

A

Admin • 833.24K Points
Coach

Q. Fractional solvent extraction

  • (A) Employs only one solvent
  • (B) Employs two solvents
  • (C) Results in low interfacial tension
  • (D) None of these

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