# Previous year question paper for FM (B-TECH mechanical engineering 4th)

## Fluid mechanics-1

### Previous year question paper with solutions for Fluid mechanics-1 from 2007 to 2018

Our website provides solved previous year question paper for Fluid mechanics-1 from 2007 to 2018. Doing preparation from the previous year question paper helps you to get good marks in exams. From our FM question paper bank, students can download solved previous year question paper. The solutions to these previous year question paper are very easy to understand.

nit –I

Fundamentals of Fluid Mechanics: Introduction; Applications; Concept of fluid; Difference

between solids, liquids and gases; Concept of continuum; Ideal and real fluids; Fluid properties:

density, specific volume, specific weight, specific gravity, viscosity (dynamic and kinematic),

vapour pressure, compressibility, bulk modulus, Mach number, surface tension and capillarity;

Newtonian and non-Newtonian fluids.

Unit –II

Fluid Statics: Concept of static fluid pressure; Pascal’s law and its engineering applications;

Hydrostatic paradox; Action of fluid pressure on a plane submerged surface (horizontal, vertical and

inclined): resultant force and centre of pressure; Force on a curved surface due to hydrostatic

pressure; Buoyancy and flotation; Stability of floating and submerged bodies; Metacentric height

and its determination; Periodic time of oscillation; Pressure distribution in a liquid subjected to : (i)

constant acceleration along horizontal, vertical and inclined direction (linear motion), (ii) constant

rotation.

Unit –III

Fluid Kinematics: Classification of fluid flows; Lagrangian and Euler flow descriptions; Velocity

and acceleration of fluid particle; Local and convective acceleration; Normal and tangential

acceleration; Path line, streak line, streamline and timelines; Flow rate and discharge mean velocity;

One dimensional continuity equation; Continuity equation in Cartesian (x,y,z), polar (r,θ) and

cylindrical (r,θ,z) coordinates; Derivation of continuity equation using the Lagrangian method in

Cartesian coordinates; Rotational flows: rotation, vorticity and circulation; Stream function and

velocity potential function, and relationship between them; Flow net.

Unit –IV

Fluid Dynamics: Derivation of Euler’s equation of motion in Cartesian coordinates, and along a

streamline; Derivation of Bernoulli’s equation (using principle of conservation of energy and

equation of motion) and its applications to steady state ideal and real fluid flows; Representation of

energy changes in fluid system (hydraulic and energy gradient lines); Impulse momentum equation;

Kinetic energy and momentum correction factors; Flow along a curved streamline; Free and forced

vortex motions.

Unit –V

Dimensional Analysis and Similitude: Need of dimensional analysis; Fundamental and derived

units; Dimensions and dimensional homogeneity; Rayleigh’s and Buckingham’s π - method for

dimensional analysis; Dimensionless numbers (Reynolds, Froudes, Euler, Mach, and Weber) and

their significance; Need of similitude; Geometric, kinematic and dynamic similarity; Model and

prototype studies; Similarity model laws.

Unit –VI

Internal Flows: Laminar and Turbulent Flows: Reynolds number, critical velocity, critical

Reynolds number, hydraulic diameter, flow regimes; Hagen – Poiseuille equation; Darcy equation;

Head losses in pipes and pipe fittings; Flow through pipes in series and parallel; Concept of

equivalent pipe; Roughness in pipes, Moody’s chart.

Unit –VII

Pressure and Flow Measurement: Manometers; Pitot tubes; Various hydraulic coefficients;

Orifice meters; Venturi meters; Borda mouthpieces; Notches (rectangular, V and Trapezoidal) and

weirs; Rotameters.

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