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Sterilization
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Question
The interception efficiency can be expressed as (where
d
p
is the particle diameter and
D
c
cylindrical collection diameter)
Options
A.
d
p
/
D
c
B.
d
p
x
D
c
C.
d
p
/
D
c
x 100
D.
d
p
D
c
/100
Correct Answer
d
p
/
D
c
More questions
1. The bitter taste of the high protein materials is reduced by using
Options
A. invertase
B. dectinase
C. protease
D. none of these
Show Answer
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Discuss
Correct Answer: protease
2. The ultimate source of water is
Options
A. rivers and lakes
B. dew and forest
C. rain and snow
D. underground and surface
Show Answer
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Discuss
Correct Answer: rain and snow
3. Which of these enzymes contains a Zinc (Zn) ion?
Options
A. Carboxypeptidase A
B. Phosphorylase B kinase
C. Tyrosine hydroxylase
D. Phosphodiesterase
Show Answer
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Discuss
Correct Answer: Carboxypeptidase A
4. The oxygen absorption rate can be determined by
Options
A. sodium sulfite oxidation method
B. dynamic gassing out technique
C. direct measurement
D. all of these
Show Answer
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Discuss
Correct Answer: all of these
5. Trichoderma ?-glucanase is reported
Options
A. to stabilize mashing
B. to convert taste fractions of dextrins to fermentable sugars in beer
C. to convert starch to dextrin
D. all of the above
Show Answer
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Discuss
Correct Answer: to stabilize mashing
6. The maximum desirable limit (BIS of mercury in the drinking water is
Options
A. 0.05 mg/l
B. 0.9 mg/l
C. 0.1 mg/l
D. 0.001 mg/l
Show Answer
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Discuss
Correct Answer: 0.001 mg/l
7. An ion exchange resin is composed of
Options
A. polymeric network
B. ionic functional groups
C. counter ions
D. all of these
Show Answer
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Discuss
Correct Answer: all of these
8. Which of the operation does not come under upstream processing?
Options
A. Media preparation
B. Inoculum development
C. Effluent treatment
D. Storage of raw material
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Correct Answer: Effluent treatment
9. Which of the following is the commonly employed adsorbents?
Options
A. Calcium carbonate
B. Alumina
C. Celluloses
D. All of these
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Discuss
Correct Answer: All of these
10. When a culture of fermenting yeast becomes metabolically uncoupled, ethanol
Options
A. becomes a secondary metabolite
B. production becomes growth associated
C. production becomes non-growth associated
D. becomes a growth nutrient
Show Answer
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Discuss
Correct Answer: production becomes non-growth associated
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More in Biochemical Engineering:
Agitation and Aeration
Downstream Processing
Enzymes and Application
Enzymes and Kinetics
Fermentation Kinetics
Fermentation Reactors
Fluid Flow
Immobilized Enzyme
Sterilization
Water Treatment