Mass Transfer MCQs with answers Page - 7

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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Q. Drying of a solid involves __________ transfer.

  • (A) Only heat
  • (B) Only mass
  • (C) Both heat and mass
  • (D) None of these

A

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Q. Critical humidity of a solid salt means the humidity

  • (A) Above which it will always become damp
  • (B) Below which it will always stay dry
  • (C) Both A and B
  • (D) Above Which it will always become dry and below which it will always stay damp

A

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

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

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Q. The reciprocal of stripping factor is termed as

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

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Q. Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

  • (A) Molal
  • (B) Relative
  • (C) Percentage
  • (D) None of these

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Q. Degree of freedom for leaching and solvent extraction process is

  • (A) 0
  • (B) 1
  • (C) 2
  • (D) 3

A

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Q. All moisture in a non-hygroscopic material is the __________ moisture.

  • (A) Free
  • (B) Equilibrium
  • (C) Unbound
  • (D) Bound

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Q. In physical terms, Schmidt number means

  • (A) Thermal diffusivity/mass diffusivity
  • (B) Thermal diffusivity/momentum diffusivity
  • (C) Momentum diffusivity/mass diffusivity
  • (D) Mass diffusivity/thermal diffusivity

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Q. Which of the following assumes constant molal vaporisation and overflow?

  • (A) McCabe-Thiele method
  • (B) Ponchan-Savarit method
  • (C) Enthalpy concentration method
  • (D) Plate absorption column

A

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Q. The wetted wall tower is used to determine

  • (A) M.T.C. of individual components in a liquid-liquid system
  • (B) Individual mass transfer co-efficient (M.T.C.) in gaseous system
  • (C) The overall M.T.C. of the system
  • (D) M.T.C. of liquid in liquid-gas system

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