Pressure and Its Measurement MCQs

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

Pressure and Its Measurement MCQs | Page 5 of 7

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Q41.
Why can’t the density be assumed as constant for compressible fluids?

a.

It shows variation with temperature and pressure

b.

It remains constant with temperature and pressure

c.

It becomes almost constant at very high temperature

d.

None of the mentioned

Discuss
Answer: (a).It shows variation with temperature and pressure
Q42.
What is the variation observed in temperature in atmosphere with respect to elevation?

a.

It goes on decreasing with height

b.

It goes on increasing with height

c.

It first increases then decreases

d.

It first decreases then increases

Discuss
Answer: (d).It first decreases then increases
Q43.
As we go upwards, at height there is slight decrease in pressure variation.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q44.
For dynamic fluid motion in a pipe, the pressure measurement cannot be carried out accurately by manometer.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q45.
A simple U tube manometer connected to a pipe in which liquid is flowing with uniform speed will give which kind of pressure?

a.

Absolute Pressure

b.

Vacuum Pressure

c.

Gauge Pressure

d.

None of the mentioned

Discuss
Answer: (c).Gauge Pressure
Q46.
A beaker half-filled with water is exposed to the atmosphere. If the pressure at points A, B and C as shown are Pa, Pb and Pc respectively, which one of the following will be the relation connecting the three?

a.

Pa > Pb = Pc

b.

Pa > Pb > Pc

c.

Pa < Pb < Pc

d.

Pa < Pb = Pc

Discuss
Answer: (d).Pa < Pb = Pc
Q47.
A beaker is filled with a liquid up to a height h. If A and B are two points, one on the free surface and one at the base as shown, such that the minimum distance between the two is l, what will be the pressure at point B?

a.

ρgl

b.

ρgh

c.

ρg\(\sqrt{l^2 + h^2}\)

d.

ρg\(\sqrt{l^2 - h^2}\)

Discuss
Answer: (b).ρgh
Q48.
A beaker of height h is filled with a liquid of density ρ up to a certain limit. The beaker is rotated by an angle θ such that further increase in the angle will result in over flow of the liquid. If the liquid surface is exposed to the atmosphere, what will be the gauge pressure at point B?

a.

ρgh

b.

ρgh sin θ

c.

ρgh cos θ

d.

ρgh=2

Discuss
Answer: (c).ρgh cos θ
Q49.
An arm of a teapot is completely filled with tea (density=ρ). If the arm has a length of l and is inclined at 30° to the horizontal, what will be the pressure difference between the two points, C at the mouth and D at the base of the arm?

a.

ρgl

b.

ρgl/2

c.

√2ρgl

d.

2ρgl

Discuss
Answer: (b).ρgl/2
Q50.
A beaker is filled with a liquid of density ρ₁ up to a certain height. The pressure at the base of the beaker id Pb. If the liquid is replaced by an equal volume of another liquid of density ρ₂, what will be the pressure at the base of the beaker now?

a.

Pb

b.

\(\frac{ρ1 + ρ2}{2}\) Pb

c.

\(\frac{ρ1}{ρ2}\) Pb

d.

\(\frac{ρ2}{ρ1}\) Pb

Discuss
Answer: (d).\(\frac{ρ2}{ρ1}\) Pb
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