Properties of Fluids MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Properties of Fluids, 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 Properties of Fluids 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 Properties of Fluids mcq questions that explore various aspects of Properties of Fluids problems. Each MCQ is crafted to challenge your understanding of Properties of Fluids 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 Properties of Fluids MCQs are your pathway to success in mastering this essential Fluid Mechanics topic.

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Properties of Fluids MCQs | Page 4 of 12

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Q31.
Water flows between two plates of which the upper one is stationary and the lower one is moving with a velocity V. What will be the velocity of the fluid in contact with the upper plate?

a.

V

b.

N ⁄ 2

c.

2V

d.

0

Discuss
Answer: (d).0
Q32.
The viscous force the relative motion between the adjacent layers of a fluid in motion.

Which one of the flowing fits best in the sentence?

a.

opposes

b.

never affects

c.

facilitates

d.

may effect under certain conditions

Discuss
Answer: (a).opposes
Q33.
The viscosity of a fluid in motion is 1 Poise. What will be it’s viscosity (in Poise) when the fluid is at rest?

a.

0

b.

0.5

c.

1

d.

2

Discuss
Answer: (c).1
Q34.
Which of the following correctly states how the viscosities of a liquid and a gas will change with temperature?

a.

Viscosity increases with the increase in temperature of a liquid and decreases with the increase in temperature of a gas

b.

Viscosity increases with the increase in temperature of a liquid and increases with the increase in temperature of a gas

c.

Viscosity decreases with the increase in temperature of a liquid and decreases with the increase in temperature of a gas

d.

Viscosity decreases with the increase in temperature of a liquid and increases with the increase in temperature of a gas

Discuss
Answer: (a).Viscosity increases with the increase in temperature of a liquid and decreases with the increase in temperature of a gas
Q35.
Which one of the following is not a unit of dynamic viscosity?

a.

Pa-s

b.

N-s/m²

c.

Poise

d.

Stokes

Discuss
Answer: (d).Stokes
Q36.
Which of the following is a unit of dynamic viscosity?

a.

[M¹ L¹ T⁻¹].

b.

[M¹ L⁻¹ T⁻¹].

c.

[M¹ L⁻² T⁻²].

d.

[M¹ L⁻² T⁻²].

Discuss
Answer: (b).[M¹ L⁻¹ T⁻¹].
Q37.
Which one of the following is the CGS unit of dynamic viscosity?

a.

Stokes

b.

Pa-s

c.

m²/s

d.

Poise

Discuss
Answer: (d).Poise
Q38.
The dynamic viscosity of a fluid is 1 Poise. What should one multiply to it to get the answer in N-s/m²?

a.

0.1

b.

1

c.

10

d.

100

Discuss
Answer: (a).0.1
Q39.
Which of the following is a unit of kinematic viscosity?

a.

Stokes

b.

Pa-s

c.

m²-s

d.

Poise

Discuss
Answer: (a).Stokes
Q40.
Which of the following is the dimension of kinematic viscosity?

a.

[L¹ T⁻¹].

b.

[L¹ T⁻²].

c.

[L² T⁻¹].

d.

[L² T⁻²].

Discuss
Answer: (c).[L² T⁻¹].
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