Engineering Questions with Answers - Multiple Choice Questions
Separation Processes MCQ’s – Membrane Modules
1 - Question
What is a membrane module?
a) A membrane module is a representation of the type of pores in a membrane
b) A membrane module is a unit housing the membrane
c) A membrane is representation of an ideal membrane
d) A membrane module is representation of the concentration changes during separation
View Answer
Answer: b
Explanation: A membrane module is a unit housing the membrane and its arrangement.
2 - Question
What is the use of cross flow in plate and frame module?
a) Reduces fouling
b) Reduces loss
c) Reduces efficiency
d) Increases efficiency
View Answer
Answer: a
Explanation: Cross flow ensures that there is less fouling.
3 - Question
What is the packing density of plate and frame module?
a) 100-400m2/m3
b) 500-100m2/m3
c) 200-400 m2/m3
d) 500-1000 m2/m3
View Answer
Answer: a
Explanation: The packing density of plate and frame module is 100-400 m2/m3.
4 - Question
What is the packing density of spiral-wound module?
a) 100ft2/ft3
b) 200 m2/m3
c) 400 m2/m3
d) 1000 m2/m3
View Answer
Answer: a
Explanation: The packing density if spiral-wound module is 100ft/ft3.
5 - Question
Which membrane module represents a spiral heat exchanger?
a) Plate and frame module
b) Spiral wound module
c) Hollow fibre module
d) No module exists
View Answer
Answer: b
Explanation: A spiral wound module represents a spiral heat exchanger.
6 - Question
What is the life spiral-wound module?
a) 2 months
b) 10years
c) 2-3 years
d) 5-9 years
View Answer
Answer: c
Explanation: The life of spiral wound module is 2-3 years.
7 - Question
What is the packing density of hollow-fibre module?
a) 200 ft2/ft3
b) 4000 ft2/ft3
c) 5000 ft2/ft3
d) 10000 ft2/ft3
View Answer
Answer: d
Explanation: The hollow fibre module has high packing density of about 10000ft2/ft3.
8 - Question
Why is there a chance of fouling in hollow fibre module?
a) Fibres form a bundle and there is little free space
b) High packing density
c) Narrow pores
d) Excessive density of membrane material
View Answer
Answer: a
Explanation: The hollow fibre membranes is sensitive to fouling as fibres form a bundle and there is little free space.
9 - Question
What is the alternate feed and permeate regions in plate and frame modules called as?
a) Spacers
b) Stop disk
c) Tie rod
d) Channel
View Answer
Answer: a
Explanation: The alternate feed and permeate regions in plate and frame modules are called as spacers.
10 - Question
Which module is preferred for reverse osmosis operation?
a) Hollow fibre module
b) Plate and frame module
c) Spiral wound module
d) No module is used
View Answer
Answer: c
Explanation: Spiral wound module is used for reverse osmosis operations.