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.

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Pressure and Its Measurement MCQs | Page 6 of 7

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Q51.
A beaker is filled with a liquid of density ฯ1 up to a certain height. A is a point, h m downwards from the free surface of the liquid as shown. The liquid is replaced by equal volume of another liquid of density ฯ2. If ฯ1 > ฯ2, how will the pressure at point A change?

a.

remain same

b.

increase

c.

decrease

d.

become zero

Discuss
Answer: (c).decrease
Q52.
A beaker is filled with a liquid of density ฯ1 up to a certain height. A is a point, h m downwards from the free surface such that the pressure at A is P. If the liquid is replaced by equal volume of another liquid of density ฯ2, at what distance from the free surface will the pressure be P now?

a.

h

b.

\(\frac{ฯ1 + ฯ2}{2}\) h

c.

\(\frac{ฯ1}{ฯ2}\) h

d.

\(\frac{ฯ2}{ฯ1}\) h

Discuss
Answer: (c).\(\frac{ฯ1}{ฯ2}\) h
Q53.
A beaker is filled with a liquid of density ฯ up to a height h. If half the liquid is replaced by equal volume of another liquid of twice the density, what will be the change in the base pressure?

a.

increased by ฯgh

b.

decreased by ฯgh

c.

increased by ฯgh=2

d.

decreased by ฯgh=2

Discuss
Answer: (c).increased by ฯgh=2
Q54.
A cuboidal container (each side of 30 cm) is completely filled with water. A is a point, 25 cm above the base such that the pressure at point A is P. At what height (in cm) from the base will the pressure be 2P?

a.

20

b.

15

c.

12.5

d.

10

Discuss
Answer: (a).20
Q55.
A closed tank (of height 5 m) is Partially filled with a liquid as shown. If the pressure of the air above the fluid is 2 bar, find the pressure at the bottom of the tank. Assume the density of the liquid to vary according to the following relation: (where y is the height from the base)

a.

2.12

b.

2.15

c.

2.18

d.

2.5

Discuss
Answer: (c).2.18
Q56.
The pressure gauges 1, 2 and 3 are installed on the system as shown. If the readings of the gauges be Pโ‚ = 1 bar, Pโ‚‚ = 2 bar and Pโ‚ƒ = 3 bar, what will be the value of P? (Take Pโ‚โ‚œโ‚˜ = 1.01 bar)

a.

3.01

b.

4.01

c.

6.01

d.

7.01

Discuss
Answer: (d).7.01
Q57.
Three beakers 1, 2 and 3 of different shapes are kept on a horizontal table and filled with water up to a height h. If the pressure at the base of the beakers are Pโ‚, Pโ‚‚ and Pโ‚ƒ respectively, which one of the following will be the relation connecting the three?

a.

Pโ‚ > Pโ‚‚ > Pโ‚ƒ

b.

Pโ‚ < Pโ‚‚ < Pโ‚ƒ

c.

Pโ‚ = Pโ‚‚ = Pโ‚ƒ

d.

Pโ‚ > Pโ‚‚ < Pโ‚ƒ

Discuss
Answer: (c).Pโ‚ = Pโ‚‚ = Pโ‚ƒ
Q58.
A beaker is filled with a liquid of specific gravity S = 1:2 as shown. What will be the pressure difference (in kN/m²) between the two points A and B, 30 cm below and 10 cm to the right of point A?

a.

2.5

b.

3.5

c.

4.5

d.

5.5

Discuss
Answer: (b).3.5
Q59.
The arm of a teapot is 10 cm long and inclined at an angle of 60° to the vertical. The center of the arm base is 2 cm above the base of the beaker. Water is poured into the beaker such that half the arm is filled with it. What will be the pressure at the base of the beaker if the atmospheric pressure is 101.3 kPa?

a.

101.3

b.

101.5

c.

101.7

d.

101.9

Discuss
Answer: (c).101.7
Q60.
A beaker of height 10 cm is half-filled with water (Sw = 1) and half-filled with oil (Sโ‚€ = 1). At what distance (in cm) from the base will the pressure be half the pressure at the base of the beaker?

a.

4.375

b.

4.5

c.

5.5

d.

5.625

Discuss
Answer: (b).4.5
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