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Mechanical Engineering Main Syllabus
Paper-I
1. Theory of Machines:
Kinematic and dynamic analysis of planar mechanisms. Cams, Gears and gear trains, Flywheels,Governors, Balancing of rigid rotors, Balancing of single and multicylinder engines, Linear vibrationanalysis of mechanical systems (single degree and two degrees of freedom), Critical speeds andwhirling of shafts, Automatic Controls, Belts and chain drives. Hydrodynamic bearings.
2. Mechanics of Solids:
Stress and strain in two dimensions. Principal stresses and strains, Mohr’s construction, linear elasticmaterials, isotropy and an isotropy, Stress-strain relations, unlaxial loading, thermal stresses. Beams :Banding moment and shear force diagrams, bending stresses and deflection of beams, Shear stressdistribution. Torsion of shafts, helical springs. Combined stresses, Thick and thin walled pressurevessels. Struts and columns, Strain energy concepts and theories of failure. Rotation discs. Shrink fits.
3. Engineering Materials:
Basic concepts on structure of solids, Crystalline materials, Defects in crystalline materials, Alloys andbinary phase diagrams, structure and properties of common engineering materials. Heat treatment ofsteels. Plastics, Ceramics and composite Materials, common applications of various materials.
4. Manufacturing Science:
Marchant’s force analysis, Taylor’s tool life equation, machinability and machining economics, Rigid,small and flexible automation, NC, CNC. Recent machining methods- EDM, ECM and ultrasonics.Application of lasers and plasmas, analysis of forming processes. High energy rate forming. Jigs,fixtures, tools and gauges, Inspection of length, position, profile and surface finish.
5. Manufacturing management:
Production Planning and Control, Forecasting-Moving average, exponential smoothing, Operationssheduling; assembly line balancing. Product development. Breakeven analysis, Capacity planning.PERT and CPM.Control Operations : Inventory control-ABC analysis. EOQ model. Materials requirement planning.Job design, Job standards, work measurement, Quality management-Quality control. OperationsResearch : Linear programming-Graphical and Simplex methods. Transportation and assignmentmodels. Single server queuing model.Value Engineering : Value analysis, for cost/Value. Total quality management and forecastingtechniques. Project management.
6. Elements of Computation:
Computer Organisation, Flow charting. Features of Common Computer Languages-FORTRAN d BaseIII, Lotus 1-2-3 C and elementary programming.
Paper-II
1. Thermodynamics:
Basic concept. Open and closed systems, Applications of Thermodynamic Laws, Gas equations,Clapeyron equation, Availability, Irreversibility and Tds relations.
2. I.C. Engines, Fuels and Combustion:
Spark ignition and compression ignition engines, Four stroke engine and Two stroke engines,mechanical, thermal and volumetric efficiency, Heat balance.Combustion process in S.I. and C.I. engines, preignition detonation in S.I. engine Diesel knock in C.I.engine. Choice of engine fuels, Octance and Cetane retings. Alternate fuels Carburration and Fuelinjection, Engine emissions and control. Solid, liquid and gaseous fuels, stoichometric air requirementsand excess air factor, fuel gas analysis, higher and lower calorific values and their measurements.
3.. Heat Transfer, Refrigeration and Air Conditioning:
One and two dimensional heat conduction. Heat transfer from extended surfaces, heat transfer byforced and free convection. Heat exchangers. Fundamentals for diffusive and connective mass transfer,Radiation laws, heat exchange between black and non black surfaces, Network Analysis. Heat pumprefrigeration cycles and systems, Condensers, evaporators and expansion devices and controls.Properties and choice of refrigerant, Refrigeration Systems and components, psychometrics, comfortindices, cooling loading calculations, solar refrigeration.
4. Turbo-machines and Power Plants:Continuity, momentum and Energy Equations. Adiabatic and Isentropic flow, fanno lines, Rayleghlines. Theory and design of axial flow turbines and compressors, Flow through turbo-machine balde,cascades, centrifugal compressor. Dimensional analysis and modelling. Selection of site for steam,hydro, nuclear and stand-by power plants, selection base and peak load power plants Modern Highpressure, High duty boilers, Draft and dust removal equipment, Fuel and cooling water systems, heatbalance, station and plant heat rates, operation and maintenance of various power plants, preventivemaintenance, economics of power generation.