Fluid Mechanics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Fluid Mechanics, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Fluid Mechanics 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 Fluid Mechanics mcq questions that explore various aspects of Fluid Mechanics problems. Each MCQ is crafted to challenge your understanding of Fluid Mechanics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Fluid Mechanics MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Fluid Mechanics. 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 Fluid Mechanics knowledge to the test? Let's get started with our carefully curated MCQs!

Fluid Mechanics MCQs | Page 64 of 77

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Q631.
Slurries can be most conveniently pumped by a __________ pump.

a.

screw

b.

reciprocating

c.

gear

d.

centrifugal

Discuss
Answer: (d).centrifugal
Q632.
Volute type of casing is provided in a centrifugal pump to

a.

convert velocity head to pressure head.

b.

convert pressure head to velocity head,

c.

reduce the discharge fluctuation.

d.

increase the discharge.

Discuss
Answer: (d).increase the discharge.
Q633.
Bernoulli's equation is not applicable, when the flow is

a.

irrotational.

b.

incompressible.

c.

viscous.

d.

all (a), (b) & (c).

Discuss
Answer: (d).all (a), (b) & (c).
Q634.
Centre of pressure of a plane surface of arbitrary shape immersed vertically in a static mass of fluid

a.

lies above the centroid of the plane surface.

b.

is independent of the specific weight of the fluid.

c.

is different for different fluids.

d.

is at the centroid of the plane surface.

Discuss
Answer: (b).is independent of the specific weight of the fluid.
Q635.
Drag co-efficient for flow past immersed body is the ratio of __________ to the product of velocity head and density.

a.

shear stress

b.

shear force

c.

average drag per unit projected area

d.

none of these

Discuss
Answer: (c).average drag per unit projected area
Q636.
Creeping flow around a sphere is defined, when particle Reynolds number is

a.

< 2100

b.

< 0.1

c.

> 2.5

d.

< 500

Discuss
Answer: (b).< 0.1
Q637.
In a free vortex, the

a.

velocity changes linearly with radial distance.

b.

flow is necessarily rotational.

c.

radial component of velocity is same everywhere.

d.

stream lines are not circular.

Discuss
Answer: (a).velocity changes linearly with radial distance.
Q638.
Pick out the wrong statement.

a.

The eddy viscosity is a function of the type of turbulence involved.

b.

The eddy viscosity is a fluid property.

c.

The viscosity of gas increases with increase in temperature.

d.

The viscosity of a liquid increases with decrease in temperature.

Discuss
Answer: (b).The eddy viscosity is a fluid property.
Q639.
The velocity distribution in direction normal to the direction of flow in plane Poiseuille flow is

a.

hyperbolic

b.

parabolic

c.

linear

d.

none of these

Discuss
Answer: (b).parabolic
Q640.
In fluid flow, the stagnation point is defined as a point, where the __________ is zero.

a.

flow velocity

b.

pressure

c.

total energy

d.

all (a), (b) and (c)

Discuss
Answer: (a).flow velocity
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