Mass Transfer Mock Test 7

10%

Question 1 of 10

1. If the pure solvent is used find the value of “ys” by analysing the below single stage extractor.

Where, F,S are feed and solvent

0-1

None of the mentioned

Question 1 of 10

Question 2 of 10

2. The viscosity should be high for the solvents using in extraction operation.

False

True

Question 2 of 10

Question 3 of 10

3. The use of solvent for increasing the relative volatility is for

Multi-component distillation

Reactive distillation

Azeotropic distillation

Extractive distillation

Question 3 of 10

Question 4 of 10

4. Stages in the extractor are _______________

Equilibrium or theoretical stages

Equilibrium stages

Theoretical stages

None of the mentioned

Question 4 of 10

Question 5 of 10

5. The method of using two solvents is known as double solvent.

False

True

Question 5 of 10

Question 6 of 10

6. Find the separation factor if the ratio of weight fraction of solute in the extract to raffinate is 0.75. Also given the ratio of dilutant in raffinate to extract is 0.5.

1.5

1.75

1.25

Question 6 of 10

Question 7 of 10

7. The Azeotropic composition of the solute makes the extraction process economical.

True

False

Question 7 of 10

Question 8 of 10

8. Find the process.

Single stage batch process

Multistage continuous process

Single stage continuous process

None of the mentioned

Question 8 of 10

Question 9 of 10

9. The composition of substances in the extraction are represented by __________

None of the mentioned

Equilateral triangle

Rectangle

Isosceles triangle

Question 9 of 10

Question 10 of 10

10. By adding entrainer or solvent one of the component’s _________ gets reduced.

Bubble point

All of the mentioned

Boiling point

Dew point

Question 10 of 10