Engineering Questions with Answers - Multiple Choice Questions
Separation Processes MCQ’s – Bioproduct Crystallization
1 - Question
What does the Attrition mean?
a) Coalescence of molecules
b) Collision of solid crystals with each other
c) Breakup of existing crystals in new particles
d) Mechanism that gives different crystal size distributions
View Answer
Answer: c
Explanation: The term attrition refers to breakup of existing crystals in new particles.
2 - Question
What does the term contact nucleation?
a) Coalescence of molecules
b) Collision of solid crystals with each other
c) Breakup of existing crystals in new particles
d) Mechanism that gives different crystal size distributions
View Answer
Answer: b
Explanation: The term contact nucleation refers to collision of solid crystals with one another.
3 - Question
What does the term chronomals refer to?
a) Coalescence of molecules
b) Collision of solid crystals with each other
c) Breakup of existing crystals in new particles
d) Mechanism that gives different crystal size distributions
View Answer
Answer: d
Explanation: Chronomals refer to the mechanism that gives different crystal size distribution.
4 - Question
Find out the characteristic crystal length if
Mass of the crystal m= 10g
Density of crystal is d= 5g/m3
Area of crystal A= 10m2
a) 1.2m
b) 1.4
c) 1m
d) 2m
View Answer
Answer: a
Explanation: Since L= 6m/dA, L= 1.2m.
5 - Question
Find out the characteristic crystal length if
Mass of the crystal m= 10g
Density of crystal is d= 6g/m3
Area of crystal A= 10m2
a) 1.2m
b) 1.4
c) 1m
d) 2m
View Answer
Answer: c
Explanation: Since L= 6m/dA, L= 1m.
6 - Question
Find out the characteristic crystal length if
Mass of the crystal m= 16.67g
Density of crystal is d= 5g/m3
Area of crystal A= 10m2
a) 1.2m
b) 1.4
c) 1m
d) 2m
View Answer
Answer: d
Explanation: Since L= 6m/dA, L= 2m.
7 - Question
Find out the characteristic crystal length if
Mass of the crystal m= 10g
Density of crystal is d= 2g/m3
Area of crystal A= 10m2
a) 1.2m
b) 3m
c) 1m
d) 2m
View Answer
Answer: b
Explanation: Since L= 6m/dA, L= 3m.
Explanation: Since L= 6m/dA, L= 3m.
8 - Question
Find out the characteristic crystal length if
Mass of the crystal m= 10g
Density of crystal is d= 1g/m3
Area of crystal A= 10m2
a) 1.2m
b) 1.4
c) 1m
d) 6m
View Answer
Answer: d
Explanation: Since L= 6m/dA, L= 6m.
9 - Question
Find out the characteristic crystal length if
Mass of the crystal m= 10g
Density of crystal is d= 4g/m3
Area of crystal A= 10m2
a) 1.2m
b) 1.5m
c) 1m
d) 2m
View Answer
Answer: b
Explanation: Since L= 6m/dA, L= 1.5m.
10 - Question
Find out the characteristic crystal length if
Mass of the crystal m= 10g
Density of crystal is d= 9g/m3
Area of crystal A= 10m2
a) 0.33m
b) 0.66m
c) 0.69m
d) 0.56m
View Answer
Answer: b
Explanation: Since L= 6m/dA, L= 0.66m.