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Summary Fluid Mechanics Question Bank with Answers:

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Welcome to the comprehensive Fluid Mechanics Question Bank designed to enhance your understanding of the principles and applications of fluid dynamics. This meticulously curated collection of questions encompasses a wide range of topics within the field of fluid mechanics, providing an invaluable r...

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  • January 16, 2024
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TISHK INERNATIONAL UNIVERSITY

DEPARTMENT OF MECHATRONICS ENGINEERING

QUESTION BANK

FLUID MECHANICS

CHAPTER I (PROPERTIES OF FLUIDS)

Group A (5 marks)

1. Define density. Or Mass density or specific mass




2. Define specific weight. Or weight density.




3. Define specific gravity.

,4. Write the unit of Kinematic viscosity and dynamic viscosity.




Dynamic Viscosity unit is Poise 1 poise = Ns/m2

5. Define Specific volume.




6. Define viscosity.




7. What do you mean by capillarity?

Cpailarity is a phenomenon by which a liquid (depending upon its specific gravity)
rises into a thin glass tube above or below its general level.

The capillarity happen due to cohesion and adhesion of liquid particles

,8. What is surface tension?


1.6 Surface Tension
Cohesion: intermolecular attraction
between molecules of the same liquid.


Adhesion: attraction between the
molecules of a liquid and the
Molecules of a solid boundary surface
In contact with the liquid
Surface tension: is caused by the force of cohesion at the free surface




CE 213 fluid mechanics 44




9. Calculate the work done in blowing a soap bubble of diameter 10cm.Assume the
surface of soap solution=0.04 N/m.

, Group B

1. Calculate the density,specific weight weight of one litre of petrol of specific
gravity = 0.7




2. A plate having an area of 0.6 m2 is sliding down the inclined plate at 300 to the
horizontal with a velocity of 0.36 m/s. There is a cushion of fluid 1.8 mm thick
between the plane and the plate. Find the viscosity of the fluid if the weight of the
plate is 280 N.

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