Explore topic-wise MCQs in Mass Transfer.

This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Mass Transfer knowledge and support exam preparation. Choose a topic below to get started.

1.

The higher difference in pressure inside the tray tower cause

A. Flooding
B. Loading
C. Weeping
D. Dumping
Answer» B. Loading
Discussion
2.

For a better stage efficiency, must have large interfacial surface and low mass transfer co-efficient.

A. True
B. False
Answer» C.
Discussion
3.

Find the process where an agitated vessel is required.

A. Vegetable oil hydrogenation
B. Production of penicillin
C. Paper stock chlorination
D. All of the mentioned
Answer» E.
Discussion
4.

Guess the interfacial area of a bubble with a gas volume of 2.5 x10^-3 cubic meters and diameter of 0.125 cm.

A. 2 sq.m
B. 4 sq.m
C. 6 sq.m
D. 12 sq.m
Answer» E.
Discussion
5.

If the relative velocity of the gas and liquid inside the bubble column of cross sectional area 0.2 meters with gas holdup of 0.736 is 3.6 meters square per second. The expected slip velocity is

A. 3.6 m/s
B. 4.89 m/s
C. 7.2 m/s
D. 9.78 m/s
Answer» B. 4.89 m/s
Discussion
6.

GUESS_THE_INTERFACIAL_AREA_OF_A_BUBBLE_WITH_A_GAS_VOLUME_OF_2.5_X10^-3_CUBIC_METERS_AND_DIAMETER_OF_0.125_CM.?$

A. 2 sq.m
B. 4 sq.m
C. 6 sq.m
D. 12 sq.m
Answer» E.
Discussion
7.

For a better stage efficiency, must have large interfacial surface and low mass transfer co-efficient.$

A. True
B. False
Answer» C.
Discussion
8.

Find_the_process_where_an_agitated_vessel_is_required.$

A. Vegetable oil hydrogenation
B. Production of penicillin
C. Paper stock chlorination
D. All of the mentioned
Answer» E.
Discussion
9.

The_higher_difference_in_pressure_inside_the_tray_tower_cause

A. Flooding
B. Loading
C. Weeping
D. Dumping
Answer» B. Loading
Discussion
10.

If the relative velocity of the gas and liquid inside the bubble column of cross sectional area 0.2 meters with gas holdup of 0.736 is 3.6 meters square per second. The expected slip velocity i?

A. 3.6 m/s
B. 4.89 m/s
C. 7.2 m/s
D. 9.78 m/s
Answer» B. 4.89 m/s
Discussion
11.

In a Bubble column, if the velocity of the gas is low, then the bubble diameter is equals to______

A. Vessel
B. Sparger orifice
C. Volume of vessel/ interfacial area
D. None of the mentioned
Answer» C. Volume of vessel/ interfacial area
Discussion
12.

Guess the diameter of the bubble for an air-water system in a sparged vessel with gas holdup of 0.1 and liquid flow rate of 0.15 meters per second.

A. 7.786 x10<sup>-3</sup>
B. 7.786 x10<sup>-4</sup>
C. 9.832 x10<sup>-3</sup>
D. 9.832 x10<sup>-4</sup>
Answer» B. 7.786 x10<sup>-4</sup>
Discussion
13.

In sparged vessel of area 50 cm and a gas holdup of 3 cubic meters per cubic meters, the flow rate of the gas is 5 cubic meters per second. The value of true gas velocity in meters per second is

A. 1.11
B. 2.22
C. 3.33
D. 4.44
Answer» D. 4.44
Discussion
14.

In a Sparged vessel of area 50 cm, the flow rate of the gas is 2 cubic meters per second then the value of superficial gas velocity in meters per second is

A. 1
B. 2
C. 3
D. 4
Answer» E.
Discussion
15.

The fraction of volume occupied by the gas-liquid mixture in the equipment/vessel to the volume occupied by the gas is

A. Liquid holdup
B. Gas holdup
C. Gas-liquid holdup
D. None of the mentioned
Answer» C. Gas-liquid holdup
Discussion
16.

During gas dispersion, if a chemical reaction between gas and liquid phase is needed, then the preferred equipment is

A. Agitated vessel
B. Sparged vessel
C. Tray tower
D. Wetted wall column
Answer» B. Sparged vessel
Discussion
17.

For the multistage counter current gas dispersed operation, which of the following equipment is better?

A. Agitated vessel
B. Sparged vessel
C. Tray tower
D. Wetted wall column
Answer» C. Tray tower
Discussion