Fluid Flow MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Fluid Flow, 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 Fluid Flow 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 Fluid Flow mcq questions that explore various aspects of Fluid Flow problems. Each MCQ is crafted to challenge your understanding of Fluid Flow 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 Fluid Flow 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 Fluid Flow. 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 Fluid Flow knowledge to the test? Let's get started with our carefully curated MCQs!

Fluid Flow MCQs | Page 1 of 5

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Q1.
A Newtonian fluid is one in which the viscosity

a.

is constant regardless of the stirrer speed or mixing time

b.

changes during mixing but returns to its original state after mixing

c.

increases with increasing stirrer speed

d.

decreases with increasing stirrer speed

Discuss
Answer: (a).is constant regardless of the stirrer speed or mixing time
Q2.
Which pattern of mixing is preferred in stirred tank reactors during the culture of aerobic microorganisms?

a.

Laminar flow

b.

Transient flow

c.

turbulent flow

d.

all of these

Discuss
Answer: (c).turbulent flow
Q3.
Animal cell cultures do not have much effect on shear forces because

a.

the cell size is generally smaller than the critical eddy size at which shear will have an effect

b.

cells are larger than the critical eddy size at which shear will have an effect

c.

animal cells have cell walls

d.

animal cells have cell membranes

Discuss
Answer: (a).the cell size is generally smaller than the critical eddy size at which shear will have an effect
Q4.
The viscosity of the culture fluid is classified as both pseudoplastic and thixotropic which indicates that the viscosity

a.

increases with stirring speed but decreases with mixing time

b.

increases with stirring speed and increases with mixing time

c.

decreases with stirring speed but increases with mixing time

d.

decreases with stirring speed and decreases with mixing time

Discuss
Answer: (d).decreases with stirring speed and decreases with mixing time
Q5.
Pluronic F68 is added to cell culture media as

a.

a nutrient

b.

a shear protectorant

c.

to increase oxygen transfer rates

d.

all of these

Discuss
Answer: (b).a shear protectorant
Q6.
Reynolds number for laminar flow over a plate should be less than

a.

500 mm

b.

5 x 10­⁵

c.

5 x 10⁵

d.

5 m

Discuss
Answer: (c).5 x 10⁵
Q7.
The approach which is commonly used to determine the level of damage to animal cells in a culture medium is to monitor

a.

the concentration of lactate in the medium

b.

the level of lactate oxidase activity in the medium

c.

the level of lactate dehydrogenase activity

d.

the level of lactase activity in the medium

Discuss
Answer: (c).the level of lactate dehydrogenase activity
Q8.
A Brookfield viscometer cannot determine the shear stress because

a.

the shear stress is not defined

b.

a computer is required

c.

the impeller type is given only by numbers

d.

all of the above

Discuss
Answer: (a).the shear stress is not defined
Q9.
Which of the following is correct?

a.

The viscosity of liquids and gases decrease with increasing temperature

b.

The viscosity of liquids and gases increase with increasing temperature

c.

the viscosity of gases increases with increasing temperature, but decreases in liquids

d.

the viscosity of gases decreases with increasing temperature, but decreases in liquids.

Discuss
Answer: (c).the viscosity of gases increases with increasing temperature, but decreases in liquids
Q10.
The Komologorov eddy size

a.

is constant at all stirrer speeds

b.

increases with stirrer speed

c.

decreases with stirrer speed

d.

becomes zero when the stirrer speed is very low

Discuss
Answer: (c).decreases with stirrer speed
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