Best Industrial Micro Biology Objective Type Questions And Answers

31. For thorough mixing of medium of medium and inoculum the part of fermentor useful is
a. Shaft
b. Headspace
c. Impeller
d. Sparger
Ans: C

32. Infermentor the top portion left without broth is called
a. Shaft
b. Head space
c. Impeller
d. Sparger
Ans: B

33. Over heating of fermentator during fermentation is controlled by
a. Cooling jacket
b. Steam
c. Cool air
d. None of these
Ans: A

34. Antifoam agent is
a. Silicon compounds
b. Corn oil
c. Soyabean oil
d. All of these
Ans: D

35. The capacity of laboratory fermentors is
a. 12–15 liters
b. 2000 gallons
c. 500 liters
d. 10000 gallons
Ans: A

36. For the production of ethanol the raw material used is
a. Molasses
b. Cellulose
c. Sulphite waste liquor
d. None of these
Ans: C

37. Different methods of strain improvement are
a. Protoplast fusion
b. Recombinant DNA technique
c. Genetic recombination
d. All of these
Ans: D

38. Protoplasts can be prepared from
a. Gram positive bacteria
b. Gram negative bacteria
c. Both a & b
d. None of these
Ans: B

39. Upto the production of desirable production in the fermentor is called
a. Upstream process
b. Downstream process
c. Surface fermentation
d. None of these
Ans: B

40. The purification and recovery of the production after fermentation is called
a. Upstream process
b. Downstream process
c. Surface fermentation
d. None of these
Ans: B

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