Engineering Questions with Answers - Multiple Choice Questions
Separation Processes MCQ’s – Membrane Materials-2
1 - Question
At what temperature is film stretching done?
a) Room temperature
b) Melting point of polymer
c) 100oc
d) 200oc
View Answer
Explanation: Film stretching is done at melting point of polymer.
2 - Question
Which method is not employed in preparation of asymmetric membrane?
a) Precipitation by cooling
b) Track etching
c) Precipitation by evaporation
d) Precipitation by immersion in a solvent
View Answer
Explanation: Track etching is not used in making asymmetric membranes.
3 - Question
What is a composite membrane?
a) Same as symmetric membrane
b) Same as asymmetric membrane
c) Asymetric membrane cast on a support
d) Two types of membrane are together
View Answer
Explanation: A composite membrane functions like a asymmetric membrane but it is cast on a solid support.
4 - Question
Ceramic membrane is a type of:
a) Polymeric membrane
b) Liquid membrane
c) Inorganic membrane
d) Gas membrane
View Answer
Explanation: Ceramic membrane is a type of inorganic membrane.
5 - Question
Microporous membrane s a type of
a) Ceramic membrane
b) Liquid membrane
c) Polymeric membrane
d) Inorganic membrane
View Answer
Explanation: Microporous membrane is a type of polymeric membrane.
6 - Question
What is the molar transmembrane flux of species if
Premeability P= 10 units
Membrane thickness l= 10units
Driving force = 500units
a) 500
b) 200
c) 400
d) 600
View Answer
Explanation: Since P/l(driving force)= N, hence N= 500.
7 - Question
What is the molar transmembrane flux of species if
Premeability P= 10 units
Membrane thickness l= 5units
Driving force = 500units
a) 500
b) 200
c) 400
d) 1000
View Answer
Explanation: Since P/l(driving force)= N, hence N= 1000.
8 - Question
What is the molar transmembrane flux of species if
Premeability P= 10 units
Membrane thickness l= 10units
Driving force = 200units
a) 500
b) 200
c) 400
d) 600
View Answer
Explanation: Since P/l(driving force)= N, hence N= 200.
9 - Question
What is the molar transmembrane flux of species if
Premeability P= 50 units
Membrane thickness l= 10units
Driving force = 100units
a) 5000
b) 2005
c) 4003
d) 6000
View Answer
Explanation: Since P/l(driving force)= N, hence N= 5000.
10 - Question
What is the molar transmembrane flux of species if
Premeability P= 10 units
Membrane thickness l= 100units
Driving force = 700units
a) 500
b) 20
c) 40
d) 70
View Answer
Explanation: Since P/l(driving force)= N, hence N= 70.