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 8 of 12

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Q71.
The relation between shear stress Z and velocity gradient du/dy of a fluid is given by

Z = A * (du/dy)ⁿ , where A and n are constants.

If n < 1, what type of fluid will it be?

a.

Newtonian fluid

b.

Dilatant

c.

Pseudoplastic

d.

Bingham plastic

Discuss
Answer: (c).Pseudoplastic
Q72.
The relation between shear stress Z and velocity gradient du/dy of a fluid is given by

Z = A * (du/dy)ⁿ + B , where A, n and B are constants.

Which of the following conditions will hold for a Bingham plastic?

a.

A = 0;B ≠ 0; n ≠ 1

b.

A ≠ 0;B = 0; n ≠ 1

c.

A = 0;B = 0; n = 1

d.

A ≠ 0;B ≠ 0; n = 1

Discuss
Answer: (d).A ≠ 0;B ≠ 0; n = 1
Q73.
The relation between shear stress Z and velocity gradient du/dy of a fluid is given by

Z = A * (du/dy)ⁿ + B , where A, n and B are constants.

Which of the following conditions will hold for a Rheopectic?

a.

A = 0;B ≠ 0; n > 1

b.

A ≠ 0;B = 0; n < 1

c.

A = 0;B = 0; n < 1

d.

A ≠ 0;B ≠ 0; n > 1

Discuss
Answer: (d).A ≠ 0;B ≠ 0; n > 1
Q74.
The relation between shear stress Z and velocity gradient du/dy of a fluid is given by

Z = A * (du/dy)ⁿ + B , where A, n and B are constants.

Which of the following conditions will hold for a Thixotropic fluid?

a.

A = 0;B ≠ 0; n > 1

b.

A ≠ 0;B = 0; n > 1

c.

A = 0;B = 0; n < 1

d.

A ≠ 0;B ≠ 0; n < 1

Discuss
Answer: (d).A ≠ 0;B ≠ 0; n < 1
Q75.
Which of the following is a shear-thinnning fluid?

a.

Bingham plastic

b.

Rheopectic

c.

Dilatant

d.

Pseudoplastic

Discuss
Answer: (d).Pseudoplastic
Q76.
Which of the following is a shear-thickening fluid?

a.

Bingham plastic

b.

Thixotropic

c.

Dilatant

d.

Pseudoplastic

Discuss
Answer: (c).Dilatant
Q77.
For what value of flow behaviour index, does the consistency index has a dimension independent of time?

a.

0

b.

1

c.

2

d.

3

Discuss
Answer: (c).2
Q78.
What will be the dimension of the flow consistency index for a fluid with a flow behaviour index of 3?

a.

[M L⁻² T].

b.

[M L⁻² T⁻¹].

c.

[M L⁻¹ T⁻²].

d.

[M L⁻¹ T].

Discuss
Answer: (d).[M L⁻¹ T].
Q79.
What will be the dimension of the flow consistency index for a fluid with a flow behaviour index of -1?

a.

N/m² s²

b.

N/m² s

c.

N/ms

d.

N/ms²

Discuss
Answer: (b).N/m² s
Q80.
Which of the following contribute to the reason behind the origin of surface tension?

a.

only cohesive forces

b.

only adhesive forces

c.

neither cohesive forces nor adhesive forces

d.

both cohesive forces and adhesive forces

Discuss
Answer: (d).both cohesive forces and adhesive forces
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