Explore topic-wise MCQs in Separation Processes.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Separation Processes knowledge and support exam preparation. Choose a topic below to get started.

1.

Incorrect statement about pervaporation is

A. Low cost
B. Independent of vapour/liquid equilibrium
C. Suitable for heat sensible product
D. Require high temperature and high pressure.
Answer» E.
Discussion
2.

What are the permeant vales, if permeant flux(N)= 10For feed side liquid: Y=0.5, x= 0.5Vapor pressure = 200Mole fraction of permeant vapor y= 0.25Total permeant pressure P= 80

A. 1.33
B. 2.55
C. 5.44
D. 7
Answer» B. 2.55
Discussion
3.

What are the permeant vales, if permeant flux(N)= 10For feed side liquid: Y=0.5, x= 0.5Vapor pressure = 100Mole fraction of permeant vapor y= 0.25Total permeant pressure P= 60

A. 2
B. 41
C. 1
D. 7
Answer» D. 7
Discussion
4.

What are the permeant vales, if permeant flux(N)= 10For feed side liquid: Y=10, x= 0.4Vapor pressure = 100Mole fraction of permeant vapor y= 0.5Total permeant pressure P= 80

A. 20
B. 40
C. 50
D. 0.03
Answer» B. 40
Discussion
5.

What are the permeant vales, if permeant flux(N)= 10For feed side liquid: Y=0.6, x= 0.5Vapor pressure = 100Mole fraction of permeant vapor y= 0.25Total permeant pressure P= 80

A. 2
B. 4
C. 5
D. 1
Answer» E.
Discussion
6.

What are the permeant vales, if permeant flux(N)= 10For feed side liquid: Y=0.5, x= 0.5Vapor pressure = 100Mole fraction of permeant vapor y= 0.25Total permeant pressure P= 80

A. 2
B. 4
C. 5
D. 7
Answer» B. 4
Discussion
7.

When is the pervaporation preferred?a) When feed solution is dilute in main permeantb) When feed solution is rich in main permeantc) When feed solution is dilute in retentated) When feed solution is rich in retentate 3) Which type of membrane is required for water permeation?

A. When feed solution is dilute in main permeantb) When feed solution is rich in main permeantc) When feed solution is dilute in retentated) When feed solution is rich in retentate 3) Which type of membrane is required for water permeation?a) Hydrophobic
B. When feed solution is rich in main permeantc) When feed solution is dilute in retentated) When feed solution is rich in retentate 3) Which type of membrane is required for water permeation?a) Hydrophobicb) Hydrophilic
C. When feed solution is dilute in retentated) When feed solution is rich in retentate 3) Which type of membrane is required for water permeation?a) Hydrophobicb) Hydrophilicc) Semipermeable
D. When feed solution is rich in retentate 3) Which type of membrane is required for water permeation?a) Hydrophobicb) Hydrophilicc) Semipermeabled) PermeableView Answer
Answer» B. When feed solution is rich in main permeantc) When feed solution is dilute in retentated) When feed solution is rich in retentate 3) Which type of membrane is required for water permeation?a) Hydrophobicb) Hydrophilic
Discussion
8.

Incorrect statement about pervaporation is$

A. Low cost
B. Independent of vapour/liquid equilibrium
C. Suitable for heat sensible product
D. Require high temperature and high pressure.
Answer» E.
Discussion
9.

What factor is unaccountable in gas permeation?

A. Temperature
B. Polymer
C. Permeant
D. Concentration of permeants
Answer» E.
Discussion
10.

Which type of membrane is required for water permeation?

A. Hydrophobic
B. Hydrophilic
C. Semipermeable
D. Permeable
Answer» C. Semipermeable
Discussion
11.

When is the pervaporation preferred?

A. When feed solution is dilute in main permeant
B. When feed solution is rich in main permeant
C. When feed solution is dilute in retentate
D. When feed solution is rich in retentate
Answer» B. When feed solution is rich in main permeant
Discussion
12.

Pervaporation method involves

A. Removal of ions
B. Production of potable water
C. Purification of aqueous streams
D. Separation and concentration of liquid mixture.
Answer» E.
Discussion