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 18 of 77

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Q171.
Very small pressure difference (< 5 mm water coloumn) can be most conveniently measured by a/an __________ manometer.

a.

U-tube water.

b.

U-tube mercury.

c.

inclined tube mercury.

d.

inclined tube water.

Discuss
Answer: (d).inclined tube water.
Q172.
For pipe flows, head is proportional to __________ at constant capacity(where, D = pipe diameter).

a.

1/D

b.

1/D²

c.

1/D⁵

d.

D²

Discuss
Answer: (c).1/D⁵
Q173.
For a given Reynold number as d/D for an orifice increases, Cd will (where, d & D are orifice & pipe diameters respectively).

a.

increase

b.

decrease

c.

remain constant

d.

either (a) or (b); depends on other factors

Discuss
Answer: (a).increase
Q174.
The ratio of wall drag to total drag in the Stoke's law range is

a.

0.5

b.

1

c.

1/3

d.

2/3

Discuss
Answer: (d).2/3
Q175.
Rotary vacuum pumps can reduce the absolute pressure to as low as __________ mm Hg.

a.

1

b.

0.1

c.

0.01

d.

0.001

Discuss
Answer: (c).0.01
Q176.
A pitched-blade turbine draws __________ a straight blade turbine.

a.

less power than

b.

more power than

c.

same power as

d.

data insufficient to predict

Discuss
Answer: (a).less power than
Q177.
The most suitable flow measuring device for the fluid flow measurement in a very large diameter pipeline is a

a.

weir

b.

pitot tube

c.

Kennison nozzle

d.

V-notch

Discuss
Answer: (b).pitot tube
Q178.
A centrifugal pump is called a turbine pump, if it is having a

a.

turbine type impeller.

b.

vaned diffusion casing.

c.

rotating vaned volute.

d.

none of these.

Discuss
Answer: (b).vaned diffusion casing.
Q179.
Acceleration head in a reciprocating pump

a.

increases the work done during delivery stroke.

b.

decreases the work done during suction stroke.

c.

does not change the work requirement of the pump.

d.

increases the work done during suction stroke.

Discuss
Answer: (c).does not change the work requirement of the pump.
Q180.
The ratio of inertial forces to elastic forces is called the __________ number.

a.

Reynolds

b.

Mach

c.

Euler

d.

Weber

Discuss
Answer: (b).Mach
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