Fluid Dynamics MCQs

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

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

Fluid Dynamics MCQs | Page 1 of 7

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Q1.
Which of the following is NOT a type of force considered in the Navier-Stokes equation?

a.

Gravity force

b.

Pressure force

c.

Surface tension force

d.

Viscous force

Discuss
Answer: (c).Surface tension force
Q2.
Which of the following equations is a result of momentum conservation for inviscid steady flows?

a.

Bernoulli’s equation

b.

Navier-Stokes equation

c.

First law of thermodynamics

d.

Euler’s equation

Discuss
Answer: (d).Euler’s equation
Q3.
The Bernoulli’s equation in fluid dynamics is valid for _________

a.

Compressible flows

b.

Transient flows

c.

Continuous flows

d.

Viscous flows

Discuss
Answer: (c).Continuous flows
Q4.
A water flows through a pipe at a velocity 2 m/s. The pressure gauge reading is 2 bar. The datum head is given to be 2 m. Find the piezometric head. (Assume all Bernoulli’s assumptions, Density of water = 1000 kg/m³, g = 9.8 m/s²).

a.

22.4 m

b.

22.6 m

c.

20.4 m

d.

20.6 m

Discuss
Answer: (a).22.4 m
Q5.
A student wishes to find the velocity of air flowing through a pipe. He has a pressure gauge which displays only the dynamic pressure. The pressure gauge reads 0.018 mm Hg. Assume density of air to be 1.225 kg/m³, find the velocity V of air (ρHg = 13600 kg/m³).

a.

4 m/s

b.

2 m/s

c.

20 m/s

d.

40 m/s

Discuss
Answer: (b).2 m/s
Q6.
If compressibility force and surface tension force are neglected from the Newton’s second law of motion, which of the following equations result?

a.

Navier-Stokes equation

b.

Euler’s equation

c.

Bernoulli’s equation

d.

Reynolds equation

Discuss
Answer: (d).Reynolds equation
Q7.
What does a pitot tube measure? Upon which principle does a pitot tube work?

a.

Pressure, Bernoulli’s principle

b.

Velocity, Bernoulli’s principle

c.

Pressure, Euler’s equation

d.

Velocity, Euler’s equation

Discuss
Answer: (a).Pressure, Bernoulli’s principle
Q8.
The best place to place a pitot tube on an aircraft for velocity measurement is just behind the jet engine.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q9.
A point in a fluid flow where the flow has come to rest is called __________

a.

Pressure point

b.

Initial point

c.

Flow point

d.

Stagnation point

Discuss
Answer: (d).Stagnation point
Q10.
When a fluid is subjected to resistance, it undergoes a volumetric change due to __________

a.

Strain

b.

Cohesion

c.

Adhesion

d.

Compressibility

Discuss
Answer: (d).Compressibility
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