Mass Transfer MCQs with answers Page - 17

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. Mass transfer co-efficient is directly proportional to DAB according to the __________ theory.

  • (A) Film
  • (B) Penetration
  • (C) Surface-renewal
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. A pure drug is administered as a sphere and as a cube. The amount of drug is the same in the two tablets. Assuming that the shape and size do not influence the mass transfer, the ratio of rate of dissolution in water at t = 0 for the cubic to spherical tablet is:

  • (A) 0.54
  • (B) 1.04
  • (C) 1.24
  • (D) 1.94

A

Admin • 833.24K Points
Coach

Q. __________ extractor uses centrifugal force for separating the two phases.

  • (A) Treybal
  • (B) Scheibel
  • (C) Podbielniak
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. With increase in temperature, the mutual solubility of two liquids

  • (A) Increases
  • (B) Decreases
  • (C) Remains unchanged
  • (D) Decreases exponentially

A

Admin • 833.24K Points
Coach

Q. The operating cost of a distillation column at minimum reflux ratio is

  • (A) Minimum
  • (B) Maximum
  • (C) Infinite
  • (D) Zero

A

Admin • 833.24K Points
Coach

Q. For a single component absorber, the operating line is straight only when plotted in term of __________ units.

  • (A) Partial pressure
  • (B) Mole ratio
  • (C) Mole fraction
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. The cooling effect in a cooling tower cannot be increased by

  • (A) Increasing the air velocity over the wet surfaces
  • (B) Reducing the humidity of entering air
  • (C) Lowering the barometric pressure
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. Separation of __________ employs gaseous diffusion process.

  • (A) N2 and O2 from air
  • (B) Isotopes of uranium
  • (C) Isotopes of helium
  • (D) SO2 and air

A

Admin • 833.24K Points
Coach

Q. Sodium bicarbonate is produced during soda ash manufacture using a __________ tower.

  • (A) Plate
  • (B) Baffle
  • (C) Packed
  • (D) None of these

A

Admin • 833.24K Points
Coach

Q. Leaching rate is independent of the

  • (A) Agitation
  • (B) Temperature
  • (C) Particle size
  • (D) None of these

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