Sterilization MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Sterilization, a fundamental topic in the field of Biochemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Sterilization MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Sterilization mcq questions that explore various aspects of Sterilization problems. Each MCQ is crafted to challenge your understanding of Sterilization principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Biochemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Sterilization MCQs are your pathway to success in mastering this essential Biochemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Sterilization. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Sterilization knowledge to the test? Let's get started with our carefully curated MCQs!

Sterilization MCQs | Page 3 of 4

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Q21.
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

Discuss
Answer: (a).first order chemical reaction
Q22.
The collection efficiency by interception increases with the

a.

increasing particle diameter

b.

increasing air flow velocity

c.

both (a) and (b)

d.

increasing particle size

Discuss
Answer: (d).increasing particle size
Q23.
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

Discuss
Answer: (a).larger heat transfer area
Q24.
The mechanism of air filtration in fibrous filter is

a.

electrostatic attraction

b.

impaction

c.

interception

d.

all of these

Discuss
Answer: (d).all of these
Q25.
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)

Discuss
Answer: (a).V = V0/(1-α)
Q26.
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

Discuss
Answer: (a).Reynolds number
Q27.
In sterilization process, spore of which of the following organism is considered as control?

a.

Bacillus subtilis

b.

Clostridium botulinum

c.

Bacillus stearothermophilus

d.

Aspergillus niger

Discuss
Answer: (c).Bacillus stearothermophilus
Q28.
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

Discuss
Answer: (c).Jn = -D dcn/dx
Q29.
The typical size of particles collected by diffusion mechanism is

a.

<0.25μm

b.

<0.5μm

c.

<0.75μm

d.

<1μm

Discuss
Answer: (b).<0.5μm
Q30.
The X90 value for a filtration system is

a.

the time required to reduce microbial population by 90%

b.

the time required to traverse survivor curve by one log cycle.

c.

the depth required to reduce population by 90%

d.

the depth of the filter required to reduce population by 99%

Discuss
Answer: (c).the depth required to reduce population by 90%
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