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!

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Pressure and Its Measurement MCQs | Page 4 of 7

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Q31.
Why is large reservoir used in single column manometer?

a.

In order to enhance the change in level of liquid in reservoir

b.

In order to negate the effects of change in level due to pressure variation

c.

In order to reduce the effect due to dynamic pressure variation due to motion

d.

None of the mentioned

Discuss
Answer: (b).In order to negate the effects of change in level due to pressure variation
Q32.
Manometers are the pressure measuring devices which use the principle of dynamic pressure to measure the pressure difference.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q33.
The distance moved by liquid will be more in which type of manometer?

a.

Inclined Single coloumn manometer

b.

Vertical Single coloumn manometer

c.

Horizontal Single coloumn manometer

d.

None of the mentioned

Discuss
Answer: (a).Inclined Single coloumn manometer
Q34.
Differential manometer gives the pressure reading with respect to atmospheric pressure.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q35.
Which device is popularly used for measuring difference of low pressure?

a.

Inverted U-tube Differential Manometer

b.

U-tube Differential Manometer

c.

Inclined Single column manometer

d.

Vertical Single column manometer

Discuss
Answer: (a).Inverted U-tube Differential Manometer
Q36.
If the atmospheric pressure at sea level is 7.5 N/cm², determine the pressure at a height of 3000m assuming the pressure variation follows isothermal law. The density of air is given as 1.2 km/m³.

a.

4.68 N/cm²

b.

9.37 N/cm²

c.

2.34 N/cm²

d.

None of the mentioned

Discuss
Answer: (a).4.68 N/cm²
Q37.
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
Q38.
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.

ฯgl

b.

ฯgh

c.

ฯg\(\sqrt{l^2 + h^2}\)

d.

ฯg\(\sqrt{l^2 - h^2}\)

Discuss
Answer: (b).ฯgh
Q39.
A beaker of height h is filled with a liquid of density ฯ up to a certain limit. The beaker is rotated by an angle ฮธ 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.

ฯgh

b.

ฯgh sin ฮธ

c.

ฯgh cos ฮธ

d.

ฯgh=2

Discuss
Answer: (c).ฯgh cos ฮธ
Q40.
An arm of a teapot is completely filled with tea (density=ฯ). 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.

ฯgl

b.

ฯgl/2

c.

โˆš2ฯgl

d.

2ฯgl

Discuss
Answer: (b).ฯgl/2
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