Fluid Mechanics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Fluid Mechanics, a fundamental topic in the field of Basic Chemical 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 Mechanics 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 Mechanics mcq questions that explore various aspects of Fluid Mechanics problems. Each MCQ is crafted to challenge your understanding of Fluid Mechanics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Fluid Mechanics MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Fluid Mechanics. 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 Mechanics knowledge to the test? Let's get started with our carefully curated MCQs!

Fluid Mechanics MCQs | Page 25 of 77

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Q241.
Velocity of liquid hydrocarbon fuels in a pipeline can not be measured by magnetic flowmeters, because their __________ is very low/small.

a.

thermal conductivity

b.

electrical conductivity

c.

specific gravity

d.

electrical resistivity

Discuss
Answer: (b).electrical conductivity
Q242.
The nominal size of a hose pipe is specified by its

a.

I.D.

b.

O.D.

c.

thickness

d.

none of these

Discuss
Answer: (a).I.D.
Q243.
Transition from laminar flow to turbulent flow is aided by the

a.

surface roughness and curvature (i.e.sharp corners).

b.

vibration.

c.

pressure gradient and the compressibility of the flowing medium.

d.

all (a), (b) & (c).

Discuss
Answer: (d).all (a), (b) & (c).
Q244.
For flow of fluids through packed bed, the superficial velocity is

a.

less than the average velocity through channels.

b.

more than the average velocity through channels.

c.

dependent on the pressure drop across the bed.

d.

same as the average velocity through channels.

Discuss
Answer: (a).less than the average velocity through channels.
Q245.
Cd is always __________ Cc.

a.

greater than

b.

less than

c.

equal to

d.

either more or less than

Discuss
Answer: (a).greater than
Q246.
Buoyant force

a.

for non-symmetrical bodies is not vertical.

b.

depends on the depth of the submergence of the floating body.

c.

depends on the weight of the floating body.

d.

none of these.

Discuss
Answer: (c).depends on the weight of the floating body.
Q247.
Which of the following options will facilitate the achievement of a very high head (say 30 metres) in case of a centrifugal pump?

a.

Increasing the impeller speed and the volute area.

b.

Increasing the number of vanes in the impeller.

c.

Mounting of two or more impellers in series on a single shaft.

d.

Either of (a), (b) or (c).

Discuss
Answer: (c).Mounting of two or more impellers in series on a single shaft.
Q248.
An equipotential line is __________ to the velocity vector at every point.

a.

normal

b.

normal

c.

tangential

d.

none of these

Discuss
Answer: (b).normal
Q249.
Path followed by water jet issuing from the bottom of a water tank will be a

a.

parabola (vertex being at the opening).

b.

hyperbola.

c.

horizontal straight line.

d.

zig-zag path (which is geometrically undefined).

Discuss
Answer: (a).parabola (vertex being at the opening).
Q250.
Which of the following produces maximum pressure difference for transportation of gases ?

a.

Vaccum pumps

b.

Blowers

c.

Fans

d.

Compressors

Discuss
Answer: (d).Compressors
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