Explore topic-wise MCQs in Mass Transfer.

This section includes 6 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.

After critical moisture content _________ starts.

A. Saturated drying region
B. Unsaturated drying region
C. Constant drying region
D. None of the mentioned
Answer» C. Constant drying region
2.

If the dry spot appears in the substance in the batch drying curve at ___________

A. Critical moisture content
B. Equilibrium moisture content
C. Bound moisture
D. Unbound moisture
Answer» B. Equilibrium moisture content
3.

The value of _________ remains constant while drying if speed and direction of gas flow never change.

A. Mass transfer co-efficient
B. Humidity
C. Moisture
D. None of the mentioned
Answer» B. Humidity
4.

Find the gas phase mass transfer co-efficient for a unbound moisture to remove if the flux is 5 kg/sq.m sec and the difference in humidity of the liquid and the main stream is 0.5 units.

A. 5
B. 10
C. 20
D. 30
Answer» C. 20
5.

The other part than the constant rate period in the Batch- Drying curve is falling rate period.

A. True
B. False
Answer» B. False
6.

Calculate the flux (kg/sq.m sec) if
Mass of dry solid = 8 kg; Wet surface area = 4 sq.m; Change in moisture content with time is 0.4 /sec;

A. 0.4
B. 0.6
C. 0.8
D. 0.9
Answer» D. 0.9