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 62 of 77

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Q611.
Actual lift of a pump is always less than the theoretical lift and is limited by the

a.

specific gravity & temperature of the liquid.

b.

leakage & pressure decreasing at higher elevations.

c.

frictional resistance through pipes, fittings & passages.

d.

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

Discuss
Answer: (d).all (a), (b) and (c).
Q612.
In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow?

a.

Discharge of water by a centrifugal pump being run at a constant rpm.

b.

Water flow in the suction and discharge pipe of a reciprocating pump.

c.

Water discharge from a vertical vessel in which constant level is maintained.

d.

Low velocity flow of a highly viscous liquid through a hydraulically smooth pipe.

Discuss
Answer: (b).Water flow in the suction and discharge pipe of a reciprocating pump.
Q613.
Nature of fluid flow during the opening of a valve in a pipeline is

a.

laminar

b.

unsteady

c.

steady

d.

uniform

Discuss
Answer: (b).unsteady
Q614.
The __________ pressure is measured by a static tube.

a.

dynamic

b.

static

c.

total

d.

none of these

Discuss
Answer: (b).static
Q615.
The speed of a sound wave in a gas is analogous to the speed of

a.

an elementary wave in an open channel.

b.

flow in an open channel.

c.

a disturbance travelling upstream in moving fluid.

d.

none of these.

Discuss
Answer: (a).an elementary wave in an open channel.
Q616.
Mercury is an ideal barometric fluid mainly due to its

a.

high density.

b.

low compressibility.

c.

low capillary action.

d.

very low vapor pressure.

Discuss
Answer: (d).very low vapor pressure.
Q617.
A spherical particle is falling slow in a viscous liquid such that Reynolds number is less than 1. Which statement is correct for this situation ?

a.

Inertial and drag forces are important.

b.

Drag, gravitational and buoyancy forces are impportant.

c.

Drag force and gravitational forces are important.

d.

None of the above.

Discuss
Answer: (b).Drag, gravitational and buoyancy forces are impportant.
Q618.
A gas

a.

signifies absence of density.

b.

can resist shearing action.

c.

is incompressible.

d.

is a supercritical vapor.

Discuss
Answer: (d).is a supercritical vapor.
Q619.
For motion of spherical particles in a stationary fluid, the drag co-efficient in hindered settling compared to that in free settling is

a.

more

b.

less

c.

equal

d.

more or less, depending on the type of particle

Discuss
Answer: (a).more
Q620.
Specific speed of a centrifugal pump relates it with another pump having the

a.

dynamic similarity

b.

same efficiency

c.

same speed

d.

geometrical similarity

Discuss
Answer: (a).dynamic similarity
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