FLUID MECHANICS – QUESTION BANK
UNIT 1 – INTRODUCTION
1. Explain the terms: density, relative density, specific weight, specific volume, vapour
pressure, boiling point, surface tension and capillarity
2. Differentiate between kinematic and dynamic viscosity
3. Derive Newton's law of viscosity with sketch
4. Derive expressions for:
a. surface tension on liquid droplet
b. surface tension on a liquid jet
5. Derive an expression for capillarity
6. Comment on bulk modulus of elasticity and compressibility
UNIT 2 – FLUID STATICS
1. Explain the concept pressure at a point
2. Define and derive Pascal's law and Hydrostatic law
3. Explain pressure variation with temperature
4. Explain the following: absolute pressure, gauge pressure, atmospheric pressure and
vacuum pressure
5. Write short notes on: Piezometer, U-tube manometers - single column, U-tube
manometer
6. Derive equations for pressure forces on : horizontal, vertical and inclined surfaces
UNIT 3 – FLUID KINEMATICS
1. Differentiate between: steady and unsteady flow, uniform and non-uniform flow,
laminar and turbulent flow, rotational and irrotational flow, compressible and
incompressible flow, ideal and real fluid flow, one, two and three dimensional flows
2. Write short notes on: stream line, path line, streak line, stream tube, stream function
and velocity potential function
3. Derive expression for continuity equation
4. Explain the terms : circulation & vorticity
UNIT 4 – FLUID DYNAMICS
1. Derive Euler's equation and Bernoulli's equation
2. Explain energy principle
3. Comment on momentum principle
4. Explain the major and minor losses in pipes
5. Write short note on: Reynold's number, Froude's number, Mach number
6. Explain the concept of flow through pipes in series and parallel
UNIT 1 – INTRODUCTION
1. Explain the terms: density, relative density, specific weight, specific volume, vapour
pressure, boiling point, surface tension and capillarity
2. Differentiate between kinematic and dynamic viscosity
3. Derive Newton's law of viscosity with sketch
4. Derive expressions for:
a. surface tension on liquid droplet
b. surface tension on a liquid jet
5. Derive an expression for capillarity
6. Comment on bulk modulus of elasticity and compressibility
UNIT 2 – FLUID STATICS
1. Explain the concept pressure at a point
2. Define and derive Pascal's law and Hydrostatic law
3. Explain pressure variation with temperature
4. Explain the following: absolute pressure, gauge pressure, atmospheric pressure and
vacuum pressure
5. Write short notes on: Piezometer, U-tube manometers - single column, U-tube
manometer
6. Derive equations for pressure forces on : horizontal, vertical and inclined surfaces
UNIT 3 – FLUID KINEMATICS
1. Differentiate between: steady and unsteady flow, uniform and non-uniform flow,
laminar and turbulent flow, rotational and irrotational flow, compressible and
incompressible flow, ideal and real fluid flow, one, two and three dimensional flows
2. Write short notes on: stream line, path line, streak line, stream tube, stream function
and velocity potential function
3. Derive expression for continuity equation
4. Explain the terms : circulation & vorticity
UNIT 4 – FLUID DYNAMICS
1. Derive Euler's equation and Bernoulli's equation
2. Explain energy principle
3. Comment on momentum principle
4. Explain the major and minor losses in pipes
5. Write short note on: Reynold's number, Froude's number, Mach number
6. Explain the concept of flow through pipes in series and parallel
