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M E Subjects – Mechanical

Engineering Concepts

Simplified

Various topics of Mechanical Engineering presented here are in a simple manner. Following courses are easily understandable. It is because of our vast teaching experience. Anybody can make things complex. It is really very difficult to make things/topics simple. Such an attempt makes every article simple to read, simple to understand and simple to reproduce. Matter is from the literature. Our effort makes it as simple as possible. Matter is in small simple sentences.

  • Thermodynamics – Definition, Applications of Thermodynamics-Nozzles, Compressors. Heat Engine, Window Air Conditioner, Refrigeration and Air-Conditioning Plant. Pump, Turbines,  Laws of Thermodynamics. Entropy, Enthalpy and Internal Energy. Reversible and irreversible processes, Free Expansion Process, Throttling Process. Iso-thermal Process, Isobaric Process, Isen-tropic Process. Isenthalpic Process, Isometric Process, Adiabatic Process, Poly-tropic Process. Thermodynamic Cycles-Carnot Cycle, Rankine Cycle, Joule Cycle. Auto Cycle, Diesel Cycle and  Dual Cycle. Steam Turbine, Gas turbine and Water Turbine.

  • Fluid Mechanics--Introduction, Pressure measurement. Hydro static forces on Submerged Surfaces, Buoyancy. Fluid Kinematics, Fluid Dynamics, Dimensional Analysis.  Laminar Flow, Turbulent Flow, Boundary Layer Theory. Flow Through pipes, Compressible Flow.

  • Theory of Machines– Elements, Pair, Lower and upper pairs. Mechanism, Types of mechanisms, Inversion of a mechanism. Degrees of freedom, Power transmission, Belt drive, Chain Drive and gear drive. Flywheel, Governor, Balancing.

Mechanical vibrations- Introduction, Degrees of freedom, Free vibrations, Forced vibrations.

Engineering Drawing- Introduction, Letter writing, Dimensioning, Scales used in drawing. Projection of points, lines, planes, solids, section of solids. Isometric projections, Orthographic projections, MCQ on various topics.

INTERNAL AND EXTERNAL ENGINES – Definition of a engine, Types of Engines, Parts of an Engine. Comparison between two and four stroke engines, Comparison between SI and CI engines. Fuels used in IC engines, Octane and Cetane Numbers, Detonation / knocking’.

MULTIPLE CHOICE QUESTIONS

Zeroth Law of Thermodynamic

First Law of Thermodynamics

Second Law of Thermodynamics

Third Law of Thermodynamics

Simple stresses

Simple strains

Principal stresses

Shear Force and Bending Moment Diagram

Bending of beams

Torsion of shafts

Thin shells

Thick shells

Moment of Inertia

Polar Moment of Inertia

Projection of Points, Projection of Lines, Projection of Planes

and Projection of solids

Intersection of solids

Orthographic Projections

Conduction

Convection

Radiation

Dimensional analysis

Heat exchangers

Boundary layer

Dimensionless numbers

Nozzles

Turbines

Compressors

Fill in the blanks

Vapor Compression Refrigeration

Vapor Absorption Refrigeration

Air Refrigeration

Refrigerants