Explore topic-wise MCQs in Mass Transfer.

This section includes 9 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.

In order to find the total number of theoretical trays we usually add one stage additional for ___________

A. Condenser
B. Reboiler
C. Condenser or Reboiler
D. No additional trays
Answer» D. No additional trays
Discussion
2.

Find the slope of the operating line of the top section of Fractionator if Reflux ratio is 2.
Hint: use McCabe Thiele method is applicable

A. 0.57
B. 0.67
C. 0.77
D. 0.87
Answer» C. 0.77
Discussion
3.

The slope of the operating line of the enriching section is R/R+1.

A. True
B. False
Answer» B. False
Discussion
4.

Heat losses are avoided in McCabe-Thiele method.

A. True
B. False
Answer» B. False
Discussion
5.

Non-equimolal flow rates are maintained in the fractionator obeying McCabe-Thiele method.

A. True
B. False
Answer» C.
Discussion
6.

McCabe Thiele method excludes ________ information.

A. Entropy
B. Enthalpy
C. Flow rate
D. Number of theoretical stages
Answer» C. Flow rate
Discussion
7.

After leaving the condenser if the liquid is at bubble point then which of the following is correct?

A. Same concentration of distillate and reflux
B. Different concentration of distillate and reflux
C. No latent heat is removed
D. None of the mentioned
Answer» B. Different concentration of distillate and reflux
Discussion
8.

If there is no reflux to a fractionating column then

A. Large condenser size is needed
B. Less reboiler size needed
C. Minimum number of trays
D. None of the mentioned
Answer» B. Less reboiler size needed
Discussion
9.

The Enriching section operating line intercept at the origin in McCabe-Thiele method when

A. Reflux ratio = Zero
B. Reflux ratio= Infinity
C. Reflux ratio= One
D. Reflux ratio= 1.5 to 2 times Reflux minimum
Answer» C. Reflux ratio= One
Discussion