INDUSTRIAL MICROBIOLOGYMCQ 004

31. For thorough mixing of medium of medium and inoculum the part of fermentor useful is
a. Shaft
b. Headspace
c. Impeller
d. Sparger
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32. Infermentor the top portion left without broth is called
a. Shaft
b. Head space
c. Impeller
d. Sparger
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33. Over heating of fermentator during fermentation is controlled by
a. Cooling jacket
b. Steam
c. Cool air
d. None of these
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34. Antifoam agent is
a. Silicon compounds
b. Corn oil
c. Soyabean oil
d. All of these
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35. The capacity of laboratory fermentors is
a. 12–15 liters
b. 2000 gallons
c. 500 liters
d. 10000 gallons
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36. For the production of ethanol the raw material used is
a. Molasses
b. Cellulose
c. Sulphite waste liquor
d. None of these
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37. Different methods of strain improvement are
a. Protoplast fusion
b. Recombinant DNA technique
c. Genetic recombination
d. All of these
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38. Protoplasts can be prepared from
a. Gram positive bacteria
b. Gram negative bacteria
c. Both a & b
d. None of these
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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
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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
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