Q. Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.
✅ Correct Answer: (A)
Schmidt
Mass Transfer MCQs | Page - 76
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.
Q. If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is
✅ Correct Answer: (A)
L/G
Q. For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).
✅ Correct Answer: (B)
10-60
Q. Berl saddle made of carbon cannot be used for
✅ Correct Answer: (D)
Oxidising atmosphere
Q. Capacity of a rotary dryer depends on its
✅ Correct Answer: (C)
Both (A) and (B)
Q. The most common packing used in industrial operations is __________ rings.
✅ Correct Answer: (A)
Raschig
Q. Refractory bricks are usually dried in a __________ dryer.
✅ Correct Answer: (B)
Tunnel
Q. Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate.
✅ Correct Answer: (B)
Decreases
Q. The binary diffusivity in gases at atmospheric conditions is about
✅ Correct Answer: (B)
10-1 cm2/sec
Q. For absorbers, high pressure drop results in
✅ Correct Answer: (C)
High operating cost
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