Engineering Questions with Answers - Multiple Choice Questions
Separation Processes MCQ’s – Drying of Byproducts
1 - Question
Which type of degradation process is found in live microorganisms?
a) Destruction of cell membranes
b) Preoxidation of lipids
c) Gelatination of starch
d) Derivation of some amino acids
View Answer
Answer: a
Explanation: The type of degradation process in live microorganisms is destruction of cell membranes and the result is denaturation of proteins and death of cells.
2 - Question
Which type of degradation process is found in lipids?
a) Destruction of cell membranes
b) Preoxidation of lipids
c) Gelatination of starch
d) Derivation of some amino acids
View Answer
Answer: b
Explanation: The type of degradation process in lipids is peroxidation of lipids and its result is reaction with other components including proteins and vitamins.
3 - Question
Which type of degradation process is found in vitamins?
a) Destruction of cell membranes
b) Preoxidation of lipids
c) Gelatination of starch
d) Derivation of some amino acids
View Answer
Answer: d
Explanation: The type of degradation process in lipids is derivation of some amino acids and its result is partial inactivation.
4 - Question
Which type of degradation process is found in polymer carbohydrates?
a) Destruction of cell membranes
b) Preoxidation of lipids
c) Gelatination of starch
d) Derivation of some amino acids
View Answer
Answer: c
Explanation: The type of degradation process in polymer carbohydrates is Gelatination of starch and its result is improved digestibility and energy utilization.
5 - Question
Which type of dryer is used for byproduct pyruvic acid?
a) Fluidized bed dryer
b) Spray dryer
c) Freeze dryer
d) No dryer
View Answer
Answer: a
Explanation: For pyruvic acid, fluidized bed dryer is used and feed is wet cake from rotary vacuum filter.
6 - Question
Which type of dryer is used for byproduct riboflavin also called as vitamin B2?
a) Fluidized bed dryer
b) Spray dryer
c) Freeze dryer
d) No dryer
View Answer
Answer: b
Explanation: For vitamin B2, spray dryer is used and feed is solution from a decanter.
7 - Question
Which type of dryer is used for recombinant human insulin?
a) Fluidized bed dryer
b) Spray dryer
c) Freeze dryer
d) No dryer
View Answer
Answer: c
Explanation: For recombinant human insulin, freeze dryer is used and feed is wet cake from a basket centrifuge.
8 - Question
Which type of dryer is used for byproduct plasmid DNA which parasitic DNA?
a) Fluidized bed dryer
b) Spray dryer
c) Freeze dryer
d) No dryer
View Answer
Answer: d
Explanation: For plasmid DNA, No dryer is used and the product is a PBS solution.
9 - Question
What is the result of cross linking reaction between amino acids in proteins?
a) Loss of color and flavors
b) Change in functionality of proteins
c) Partial denaturation, loss of nutritive value
d) Death of cells
View Answer
Answer: b
Explanation: The result of cross linking reaction between amino acids in proteins is change in functionality of proteins.
10 - Question
What is the result of physical changes in simple sugars?
a) Loss of color and flavors
b) Change in functionality of proteins
c) Partial denaturation, loss of nutritive value
d) Death of cells
View Answer
Answer: a
Explanation: The result of physical changes in simple sugars as a result of caramelization is loss of flavor and color.