NPTEL
FAQ
Chapter 1: Introduction and Fundamental Concepts
1. Define a fluid.
2. How fluids are classified.
3. Name the properties of fluids.
4. What do you mean by viscosity of a fluid?
5. On what factors does the viscosity depend?
6. What is kinematic viscosity?
7. What is meant by cavitation?
8. Define cohesion and adhesion
9. What is vapour pressure? How can the water boil even at room temperature?
10. Define compressibility.
Chapter 2: Fluid Statics
1. Define intensity of pressure
2. What is pressure head?
3. State Pascal’s law
4. Define atmospheric pressure
5. How does atmospheric pressure vary with the altitude?
6. What are the advantages of mechanical gauges over the manometers
7. State the difference between simple and differential manometers
8. How is negative pressure measured with the help of U-tube?
9. What is meant by fluid static pressure?
10. What is meant by total pressure and centre of pressure?
11. What is pressure diagram? What is its use?
12. State Archimedes principle
13. What is buoyant force?
14. State principle of buoyancy and flotation. What is the difference between two
principles?
Chapter 3: Kinematics of Fluid
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Distinguish between stream lines, streak lines and path lines.
What are steady flow and unsteady flow?
State and explain the Reynolds transport theorem
State the continuity equation for one dimensional steady flow
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5. What are irrotational flow
6. State the conditions for a three dimensional flow to be irrotational.
7. Distinguish between
a. uniform and non uniform flow
b. laminar and turbulent flow
c. rotational and irrotational
d. one two and three dimensional flow
8. What are the properties of stream function?
Chapter 4: Dynamics of Fluids
1. What is the significance of Bernoulli’s equation? Explain with diagram.
2. State Bernoulli’s theorem and explain the conditions of application.
3. What is Euler’s equation of motion?
4. Name the different forces present in a fluid flow.
5. What is venturimeter? Derive the equation for discharge.
6. Discuss the relative merits and demerits of venturimeter with respect to orifice meter.
7. What is impulse momentum theorem?
8. Name the practical applications of Bernoulli’s theorem.
9. Name the practical applications impulse momentum theorem.
10. Does Bernoulli’s equation hold good in case of jet discharging freely? If so under what
circumstances?
Chapter 5: Dimension Analysis & Hydraulic Similitude
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What is dimensional analysis? State its uses.
What are derived units and fundamental units?
What are two systems in which the derived units are expressed?
What is dimensional homogeneity?
What is meant by homogeneous equation?
What is rational equation?
What are various methods of dimensional analysis to obtain a functional relationship between
various parameters influencing a physical phenomenon?
Describe Buckingham’s method.
What is model analysis and its uses.
What is hydraulic similitude?
What is mechanical similarity? Describe the types of similarity.
What are dimensionless numbers?
Name dimensionless numbers used in fluid mechanics
Describe various types of models.
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