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 61 of 77

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Q601.
Pressure drop in a packed bed for laminar flow is given by the __________ equation.

a.

Kozney-Karman

b.

Blake-Plummer

c.

Leva's

d.

Fanning friction factor

Discuss
Answer: (a).Kozney-Karman
Q602.
The fluid velocity varies as the cube of the cylinderical pipe diameter in case of steady state laminar flow at constant pressure drop for __________ fluid.

a.

Newtonion

b.

pseudoplastic

c.

dilatent

d.

Bingham plastic

Discuss
Answer: (b).pseudoplastic
Q603.
Stoke's law is valid, when Nส€โ‚‘, p is less than

a.

2

b.

100

c.

2100

d.

700

Discuss
Answer: (a).2
Q604.
__________ pumps are a group of vacuum pumps.

a.

Hyter

b.

Sump

c.

Mono

d.

Submerged

Discuss
Answer: (a).Hyter
Q605.
Plunger pumps are used for

a.

higher pressure

b.

slurries

c.

viscous mass

d.

none of these

Discuss
Answer: (a).higher pressure
Q606.
What is the ratio of displacement thickness to nominal thickness for a linear distribution of velocity in the boundary layer on a flat plate ?

a.

0.5

b.

1

c.

1.5

d.

2

Discuss
Answer: (a).0.5
Q607.
In turbulent flow, the

a.

fluid particles move in an orderly manner.

b.

momentum transfer is on molecular scale only.

c.

shear stress is caused more effectively by cohesion than momentum transfer.

d.

shear stresses are generally larger than in a similar laminar flow.

Discuss
Answer: (d).shear stresses are generally larger than in a similar laminar flow.
Q608.
Momentum correction factor used in fluid flow problems accounts for the

a.

change in direction of flow.

b.

change in total energy.

c.

change in pressure.

d.

non uniform direction of velocities at inlet & outlet sections.

Discuss
Answer: (d).non uniform direction of velocities at inlet & outlet sections.
Q609.
Viscosity of water is about __________ times that of air at room temperature.

a.

15

b.

55

c.

155

d.

1050

Discuss
Answer: (b).55
Q610.
Net positive suction head (NPSH) of a centrifugal pump must be

a.

greater than the vapour pressure of the liquid.

b.

less than the vapour pressure of the liquid.

c.

equal to the vapour pressure of the liquid.

d.

less than barometric pressure.

Discuss
Answer: (a).greater than the vapour pressure of the liquid.
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