Biochemical Engineering | Sterilization

The destruction of microorganisms by steam may be described as

Byadmin July 20, 2022

Question: The destruction of microorganisms by steam may be described as
[A].

first order chemical reaction

[B].

zero order chemical reaction

[C].

second order chemical reaction

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Agitation And Aeration | Biochemical Engineering

Which of the following will have the highest surface area available for oxygen transfer?

Question: Which of the following will have the highest surface area available for oxygen transfer?
[A].

A shake flask
[B].
A standing test tube
[C].
A non-sparged stirred tank reactor agitated at 400 rpm
[D].
A sparged stirred tank reactor agitated at 400 rpm

Answer: Option D

Explanation:

No answer description available for this question.

Read More Which of the following will have the highest surface area available for oxygen transfer?
Biochemical Engineering | Water Treatment

Sanitizer used specifically for vitreous enamel are

Question: Sanitizer used specifically for vitreous enamel are
[A].

strong alkalis
[B].
strong acids
[C].
weak alkali with sodium silicate
[D].
none of these

Answer: Option C

Explanation:

No answer description available for this question.

Read More Sanitizer used specifically for vitreous enamel are
Biochemical Engineering | Immobilized Enzyme

If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles)

Question: If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles)
[A].

rp = ksa(Csb-Cs)
[B].
rp = ksaCsb
[C].
rp = ksaCs
[D].
rp = ksa(Csb+Cs)

Answer: Option B

Explanation:

No answer description available for this question.

Read More If Damkohler number, NDa >>1, the reaction rate is much greater than the mass transfer rate and the overall reaction is controlled by the rate of mass transfer. In this case, the enzyme reaction can be described as (where Csb and Cs are the substrate concentration in bulk of solution and at the immobilized enzyme surface respectively. ks mass transfer coefficient, and a is the surface area of an immobilized enzyme particles)
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
Biochemical Engineering | Water Treatment

When temporary hard water is boiled, one of the substances formed is

Question: When temporary hard water is boiled, one of the substances formed is
[A].

calcium bicarbonate
[B].
calcium sulfate
[C].
hydrogen chloride
[D].
carbon dioxide

Answer: Option D

Explanation:

No answer description available for this question.

Read More When temporary hard water is boiled, one of the substances formed is
Biochemical Engineering | Sterilization

Sterilization can be carried out by

Question: Sterilization can be carried out by
[A].

heat
[B].
radiation
[C].
chemical agents
[D].
all of these

Answer: Option D

Explanation:

No answer description available for this question.

Read More Sterilization can be carried out by

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