Mass Transfer MCQs with answers Page - 6

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 • 802.91K Points
Coach

Q. Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.

  • (A) Size
  • (B) Durability
  • (C) Porosity
  • (D) Cost

A

Admin • 802.91K Points
Coach

Q. Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation?

  • (A) Cost
  • (B) Availability
  • (C) Toxicity
  • (D) Selectivity

A

Admin • 802.91K Points
Coach

Q. Ponchan-Savarit method analyses the fractional equipment based on

  • (A) Enthalpy balance only
  • (B) Material balance only
  • (C) Both enthalpy and material balances
  • (D) The assumption of constant molaloverflow

A

Admin • 802.91K Points
Coach

Q. The solvent used in liquid extraction should not have high latent heat of vaporisation, because

  • (A) The pressure drop and hence the pumping cost will be very high
  • (B) It cannot be recovered by distillation
  • (C) Its recovery cost by distillation may be prohibitatively high
  • (D) It will decompose while recovering by distillation

A

Admin • 802.91K Points
Coach

Q. For absorbers, high pressure drop results in

  • (A) Increased efficiency
  • (B) Decreased efficiency
  • (C) High operating cost
  • (D) Better gas liquid contact

A

Admin • 802.91K Points
Coach

Q. The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of

  • (A) Newtonion liquids
  • (B) Non-Newtonion liquids
  • (C) Ideal gases
  • (D) Real gases

A

Admin • 802.91K Points
Coach

Q. Even though bubble cap towers are very effective for humidification operation, they are not used commonly in industries, because of the

  • (A) High evaporation losses of water
  • (B) High pressure drop of the gas
  • (C) Difficulty in its fabrication
  • (D) None of these

A

Admin • 802.91K Points
Coach

Q. Which of the following equipments is not used in liquid-liquid extraction?

  • (A) Pachuka tank
  • (B) Agitated vessels
  • (C) Centrifugal extractors
  • (D) Packed towers

A

Admin • 802.91K Points
Coach

Q. With increase in temperature, the solubility of gases in liquids, at fixed pressure

  • (A) Increases
  • (B) Decreases
  • (C) Remains same
  • (D) Either A or B, depends on the system

A

Admin • 802.91K Points
Coach

Q. Dryer widely used in a textile industry is __________ dryer.

  • (A) Festoon
  • (B) Cylinder
  • (C) Conveyor
  • (D) Tunnel

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