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 50 of 77

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Q491.
Bernoulli's equation for steady, frictionless, continuous flow states that the __________ at all sections is same.

a.

total pressure

b.

total energy

c.

velocity head

d.

none of these

Discuss
Answer: (b).total energy
Q492.
A tube is specified by its

a.

thickness only

b.

outer diameter only

c.

thickness & outer diameter both

d.

inner diameter

Discuss
Answer: (c).thickness & outer diameter both
Q493.
Uniform fluid flow occurs, when the derivative of the flow variables satisfy the following condition.

a.

โˆ‚/โˆ‚t = 0

b.

โˆ‚/โˆ‚t = constant

c.

โˆ‚/โˆ‚s = 0

d.

โˆ‚/โˆ‚s = constant

Discuss
Answer: (c).โˆ‚/โˆ‚s = 0
Q494.
Prandtl mixing length is

a.

applicable to laminar flow problems.

b.

a universal constant.

c.

zero at the pipe wall.

d.

none of these.

Discuss
Answer: (c).zero at the pipe wall.
Q495.
The hydraulic diameter of an annulus of inner and outer radii Rแตข and Rโ‚€ respectively is

a.

4(Rโ‚€-Rแตข)

b.

โˆš(Rโ‚€-Rแตข)

c.

2(Rโ‚€-Rแตข)

d.

Rโ‚€ + Rแตข

Discuss
Answer: (c).2(Rโ‚€-Rแตข)
Q496.
Ratio of inertial forces to surface tension forces is called the __________ number.

a.

Euler

b.

Froude

c.

Mach

d.

Weber

Discuss
Answer: (d).Weber
Q497.
In open channel flow in a rectangular channel, the ratio between the critical depth and the initial depth, when a hydraulic jump occurs is

a.

0.5

b.

0.84

c.

1.84

d.

1.25

Discuss
Answer: (c).1.84
Q498.
The ratio of inertial forces to viscous forces is called the __________ number.

a.

Weber

b.

Mach

c.

Froude

d.

Reynold

Discuss
Answer: (d).Reynold
Q499.
Enamels and paints are generally __________ fluid.

a.

reheopectic

b.

pseudo-plastic

c.

thixotropic

d.

dilatant

Discuss
Answer: (b).pseudo-plastic
Q500.
With the increase in depth, the hydrostatic pressure in an unaccelerated incompressible fluid (in a constant gravitational field)

a.

decreases.

b.

increases linearly.

c.

increases exponentially.

d.

remains constant.

Discuss
Answer: (b).increases linearly.
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