Hydraulics and Fluid Mechanics MCQs

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

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

Hydraulics and Fluid Mechanics MCQs | Page 23 of 39

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Q221.
The volume of a fluid __________ as the pressure increases.

a.

remains same

b.

decreases

c.

increases

d.

None of these

Discuss
Answer: (b).decreases
Q222.
The pressure of the liquid flowing through the divergent portion of a venturimeter

a.

remains constant

b.

increases

c.

decreases

d.

depends upon mass of liquid

Discuss
Answer: (c).decreases
Q223.
The vacuum pressure can be measured with the help of a piezometer tube.

a.

True

b.

False

c.

Can't say

d.

None of these

Discuss
Answer: (b).False
Q224.
A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is

a.

0.46

b.

0.64

c.

0.78

d.

0.87

Discuss
Answer: (b).0.64
Q225.
According to Bazin's formula, the discharge over a rectangular weir is mL2g x H^3/2 where m is equal to

a.

0.405 + (0.003/H)

b.

0.003 + (0.405/H)

c.

0.405 + (H/0.003)

d.

0.003 + (H/0.405)

Discuss
Answer: (a).0.405 + (0.003/H)
Q226.
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. Which of the following statement is correct?

a.

The pressure on the wall at the liquid level is minimum.

b.

The pressure on the bottom of the wall is maximum.

c.

The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum

d.

The pressure on the bottom of the wall is zero.

Discuss
Answer: (c).The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum
Q227.
Water is a __________ fluid.

a.

real

b.

ideal

c.

newtonian

d.

non-newtonian

Discuss
Answer: (c).newtonian
Q228.
The property of a liquid which controls its rate of flow is called viscosity.

a.

True

b.

False

c.

Can't say

d.

None of these

Discuss
Answer: (a).True
Q229.
The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is

a.

0.0116 stoke

b.

0.116 stoke

c.

0.0611 stoke

d.

0.611 stoke

Discuss
Answer: (a).0.0116 stoke
Q230.
The factional resistance of a pipe varies approximately with __________ of the liquid.

a.

pressure

b.

velocity

c.

square of velocity

d.

cube of velocity

Discuss
Answer: (c).square of velocity
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