Agitation And Aeration | Biochemical Engineering

Which of the following will have the largest interfacial area per unit volume?

Byadmin July 19, 2022

Question: Which of the following will have the largest interfacial area per unit volume?
[A].

A bubble with a diameter of 1 mm

[B].

A bubble with a diameter of 5 mm

[C].

A bubble with a diameter of 15 mm

[D].

A bubble with a diameter of 50 mm

Answer: Option A

Explanation:

No answer description available for this question.

Agitation And Aeration | Biochemical Engineering

The advantage of axial flow impellers over radial flow impellers is that axial flow impellers

Question: The advantage of axial flow impellers over radial flow impellers is that axial flow impellers
[A].

provide better lift of solids
[B].
provide high shear conditions
[C].
provide low shear conditions
[D].
are cheaper to build

Answer: Option A

Explanation:

No answer description available for this question.

Read More The advantage of axial flow impellers over radial flow impellers is that axial flow impellers
Biochemical Engineering | Fermentation Reactors

Yield coefficient represents

Question: Yield coefficient represents
[A].

total biomass or product produced
[B].
conversion efficiency of a substrate into product
[C].
conversion rate of a substrate into biomass or product
[D].
production time of biomass or product

Answer: Option B

Explanation:

No answer description available for this question.

Read More Yield coefficient represents
Biochemical Engineering | Sterilization

For indirect heating, the plate and frame heat exchanger is generally more effective than the shell and tube heat transfer due to its

Question: For indirect heating, the plate and frame heat exchanger is generally more effective than the shell and tube heat transfer due to its
[A].

larger heat transfer area
[B].
smaller heat transfer area
[C].
lesser cost
[D].
more number of plates

Answer: Option A

Explanation:

No answer description available for this question.

Read More For indirect heating, the plate and frame heat exchanger is generally more effective than the shell and tube heat transfer due to its
Agitation And Aeration | Biochemical Engineering

Reynolds (Rei) number for the impeller is given by (where Di, stirrer diameter; N, stirrer speed, ρ, density of fluid and μ, viscosity of fluid)

Question: Reynolds (Rei) number for the impeller is given by (where Di, stirrer diameter; N, stirrer speed, ρ, density of fluid and μ, viscosity of fluid)
[A].

DiVρ/μ
[B].
Di2Nρ/μ
[C].
Di2Vρ/μ
[D].
DiNρ /μ

Answer: Option B

Explanation:

No answer description available for this question.

Read More Reynolds (Rei) number for the impeller is given by (where Di, stirrer diameter; N, stirrer speed, ρ, density of fluid and μ, viscosity of fluid)
Biochemical Engineering | Immobilized Enzyme

The most commonly employed cross-linked polymer is the

Question: The most commonly employed cross-linked polymer is the
[A].

polyacrylamide gel
[B].
collagen
[C].
celluloses
[D].
cation exchange resin

Answer: Option A

Explanation:

No answer description available for this question.

Read More The most commonly employed cross-linked polymer is the
Biochemical Engineering | Fermentation Reactors

Mixing in an anaerobic sludge blanket reactor is due to

Question: Mixing in an anaerobic sludge blanket reactor is due to
[A].

rapid change in water temperatures throughout the reactor
[B].
release of gases by the microbial populations
[C].
swimming of microbes
[D].
none of the above

Answer: Option B

Explanation:

No answer description available for this question.

Read More Mixing in an anaerobic sludge blanket reactor is due to

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