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Biochemical Engineering

If the packing density (α) is defined as the volume of the fiber unit volume of filter bed, the velocity within the filter void space is equal to (where V is velocity in fluid void space and V0 is undisturbed fluid velocity)

Biochemical Engineering, Sterilization /
Question: If the packing density (α) is defined as the volume of the fiber unit volume of filter bed, the velocity within the filter void space is equal to (where V is velocity in fluid void space and V0 is undisturbed fluid velocity)
[A].

V = V0/(1-α)

[B].

V-V0 = 1 – α

[C].

V = V0(1 – α)

[D].

V = V0/(1 + α)

Answer: Option A

Explanation:

No answer description available for this question.

If the packing density (α) is defined as the volume of the fiber unit volume of filter bed, the velocity within the filter void space is equal to (where V is velocity in fluid void space and V0 is undisturbed fluid velocity) Read More »

Biochemical Engineering, Sterilization

The moist heat is more effective than the dry heat because the intrinsic heat resistance of vegetative cells is greatly

Biochemical Engineering, Sterilization /
Question: The moist heat is more effective than the dry heat because the intrinsic heat resistance of vegetative cells is greatly
[A].

increased in a dry state

[B].

decreased in a dry state

[C].

increased in a wet state

[D].

decreased in a wet state

Answer: Option A

Explanation:

No answer description available for this question.

The moist heat is more effective than the dry heat because the intrinsic heat resistance of vegetative cells is greatly Read More »

Biochemical Engineering, Sterilization

Glass fibers are favorable as a filter medium because they give a

Biochemical Engineering, Sterilization /
Question: Glass fibers are favorable as a filter medium because they give a
[A].

lower pressure drop and are less liable to wetting or combustion

[B].

more pressure drop and are less liable to wetting or combustion

[C].

lower pressure drop and are more liable to wetting or combustion

[D].

more pressure drop and are more liable to wetting or combustion

Answer: Option A

Explanation:

No answer description available for this question.

Glass fibers are favorable as a filter medium because they give a Read More »

Biochemical Engineering, Sterilization

For the turbulent flow, the dispersion coefficient is correlated as a function of

Biochemical Engineering, Sterilization /
Question: For the turbulent flow, the dispersion coefficient is correlated as a function of
[A].

Reynolds number

[B].

Sherwood number

[C].

Schmidt number

[D].

Grashof number

Answer: Option A

Explanation:

No answer description available for this question.

For the turbulent flow, the dispersion coefficient is correlated as a function of Read More »

Biochemical Engineering, Sterilization

Analogus to the molecular diffusion, the x-directional flux of microorganisms suspended in a medium due to the axial mixing can be represented as (where Jn is flux component ‘n’, cn is concentration of’n’)

Biochemical Engineering, Sterilization /
Question: Analogus to the molecular diffusion, the x-directional flux of microorganisms suspended in a medium due to the axial mixing can be represented as (where Jn is flux component ‘n’, cn is concentration of’n’)
[A].

Jn = -dcn/dx

[B].

Jn = dcn/dx

[C].

Jn = -D dcn/dx

[D].

Jn = D dcn/dx

Answer: Option C

Explanation:

No answer description available for this question.

Analogus to the molecular diffusion, the x-directional flux of microorganisms suspended in a medium due to the axial mixing can be represented as (where Jn is flux component ‘n’, cn is concentration of’n’) Read More »

Biochemical Engineering, Sterilization