080011:1203122001 Pages: 3

Reg No.: Name:

Course Name: FLUID MECHANICS AND HYDRAULIC MACHINES

Time: 3 hours

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10

112
110

12a
12b

APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Third Semester B.Tech Degree Examination December 2020 (2019 Scheme)

Course Code: IET203

PARTA

Answer all questions
Illustrate compressibility of fluids.
How shear stress and velocity gradient in fluids are related?
Differentiate steady and unsteady flows with examples.
Define Reynolds number. State its significance.
Draw a lay out representing classification of notches and weirs.
Write steps to derive the formula for discharge through a rectangular notch.
Illustrate force developed due to impact of jet on a fixed flat plate.
Explain work done by impact of jet on a moving curved plate.
Distinguish various heads in a Centrifugal pump.

List out the parameters affecting performance of a pump.

Part B
Answer any one full question from each module
Module 1
Prove Pascal’s law. Quote a practical example.

With neat sketches, illustrate the working of different mechanical pressure
gauges in practice.

Derive expression for metacentric height of a floating body.

The diameter and height of a solid cylinder floating in water are 6 m and 8 m
respectively. If the specific gravity of the material of the cylinder is 0.8, find its

metacentric height and state whether the equilibrium is stable or unstable.

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Max. Marks: 100

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