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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.

M

Mr. Dubey • 51.17K Points
Coach

Q. 751) Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.

(A) Schmidt
(B) Sherwood
(C) Peclet
(D) Stanton
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M

Mr. Dubey • 51.17K Points
Coach

Q. 752) 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

(A) L/G
(B) G/L
(C) Always < 1
(D) None of these
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M

Mr. Dubey • 51.17K Points
Coach

Q. 753) 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).

(A) 1-5
(B) 10-60
(C) 200-300
(D) > 500
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M

Mr. Dubey • 51.17K Points
Coach

Q. 754) Berl saddle made of carbon cannot be used for

(A) Alkalis
(B) SO2
(C) H2SO4
(D) Oxidising atmosphere
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M

Mr. Dubey • 51.17K Points
Coach

Q. 755) Capacity of a rotary dryer depends on its

(A) rpm
(B) Inclination with ground surface
(C) Both (A) and (B)
(D) Neither (A) nor (B)
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M

Mr. Dubey • 51.17K Points
Coach

Q. 756) The most common packing used in industrial operations is __________ rings.

(A) Raschig
(B) Lessing
(C) Cross-partition
(D) Single spiral
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M

Mr. Dubey • 51.17K Points
Coach

Q. 757) Refractory bricks are usually dried in a __________ dryer.

(A) Tray
(B) Tunnel
(C) Conveyor
(D) Festoon
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M

Mr. Dubey • 51.17K Points
Coach

Q. 758) Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate.

(A) Increases
(B) Decreases
(C) Does not affect
(D) Exponentially increases
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M

Mr. Dubey • 51.17K Points
Coach

Q. 759) The binary diffusivity in gases at atmospheric conditions is about

(A) 10-9 cm/sec
(B) 10-1 cm2/sec
(C) 10-3 sec/cm
(D) 10-4 cm2/sec2
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M

Mr. Dubey • 51.17K Points
Coach

Q. 760) For absorbers, high pressure drop results in

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