RPSC AEN MECHANICAL MAINS

Development Processes: Inter relationship between social, economic, scientific and technological factors for development. Development criteria; gross national product, energy consumption. 

Development Processes

Rural economy, poverty, unemployment, exodus to urban areas. Land acquisition act. 

Globalisation of Economy: World Trade Organization (W.T.O.), trade related Intellectual Property Rights (TRIPS), Quality assurance, ISO certification. 5 'S' Theory, Optimisation of human, capital and material resources.

Theory of Machines: Kinematics and dynamic analysis of mechanisms, Coirolis component of acceleration, Mechanisms for straight line, Motor vehicle steering mechanism, Hooke's Joint and Geneva mechanism, Kinematics synthesis of mechanism, Velocity and acceleration analysis, Brakes and dynamometers, Cams, Governors, Gears and Gear trains, fly wheel and turning moment diagram, Friction (types), Laws of friction, Inclined plane, Ball & roller bearings, single and multiplate clutches, Force analysis of machines, Force and inertia torque analysis of mechanisms, Balancing of rotating and reciprocating masses, Balancing of single and multicylinder engines, Gyroscopic motion, vibration analysis of free, damped and forced vibration of single degree of freedom, Vibration isolation and transmissibility, Transverse vibration and whirling (critical) speed of shaft, torsional vibration up to three rotor system, geared system, Holzer's method.

Materials Science: Crystal structure, space lattice, crystal systems, Miller indices, Imperfection in crystal, determination of crystal structure, mechanism of plastic deformation, Theory of work hardening and recrystalization, concept of creep, fatigue and fracture, Phase diagrams, Heat treatment of steels, Plain carbon steel, alloy steels, effect of alloying elements in steel, Composition, application and properties of common engineering materials, Materials for Nuclear energy and bearing materials.

Machine Design: Design procedure and flow diagram, Factor of safety, unit deformation (strain), Types of stresses, stress-strain relationship, Deflection in beams, bending moment & shear force diagram, Eccentric loading, theory of fatigue, Statistical nature of fatigue, Endurance limit and its modification factor, Concept of fracture in ductile and brittle metals, Creep behavior in metals, Design of levers, beams, shafts, laminated and helical springs, belt, pulleys and flywheel, power screw, gear drives and friction clutches, thin and thick wall pressure vessels.

Manufacturing Processes: Types of patterns and pattern making, Moulding and casting methods, Principles of arc welding and equipment, oxy-acetylene gas welding, gas welding flames, Brazing and Soldering, hot and cold working of metals, Introduction to Lathe, Milling, shaper and drilling machine, Cutting tools, Merchant's force analysis, geometry of single point cutting tool, types of chips, Taylor's tool life equation, Economics of metal cutting, Modem machining methods, NC & CNC, Jigs & fixtures, fits, tolerances and limits, measurements of screw threads and gear profile, gear manufacturing, Press tools and high velocity forming. 

Industrial Engineering: Type of business, their formation and dissolution, Government control, public corporations and co-operative societies. Introduction to management, Principle of Management, elements of management, contribution of Taylor, Gilbreth, Fayol and Mayo in the development of management, Forms of organization, management structure, Authorities and responsibilities, organizational charts, span of control, Work study and productivity, motion study, time study, theory of work sampling, Make and buy decision, probability theory, Game theory, replacement theory, principle of plant layout, Material handling: functions, engineering & economic factors, production planning and control, routing, scheduling and dispatching, Gannt's chart, CPM, PERT, Material Management, Planning and Programming, Inventories, lot size, lead time, re-order point, wages payment system, Introduction to linear programming, Value engineering, JIT and MRP, Labour legislation, Industrial Relations.  

THERMODYNAMICS: Basic concepts of thermodynamics, Properties of pure substances, First law of thermodynamics applied to closed and open systems, Second law of thermodynamics, Carnot cycle, entropy, Second law analysis of engineering systems, Availability. Gas Power Cycles: Air Standard Efficiency, Otto cycle, Diesel cycle, Brayton cycle with modifications, Ideal jet propulsion cycle. Vapour Power Cycles: Carnot and Rankine cycles, reheat and regenerative cycles, reheat factor, binary vapour cycle, combined gas-vapour power cycle. Combustion: Solid, liquid and gaseous fuels, stochiometric air and excess air, Gas analysis, Different calorific values, Enthalpy of reaction and enthalpy of formation, Dissociation. 

HEAT TRANSFER: Conduction: One- dimensional steady state heat conduction, Heat conduction through composite walls, Critical thickness of insulation, Heat transfer from finned surfaces, fin efficiency and effectiveness. Convection: Free and forced convection, Dimensional analysis, Heat transfer correlations, Hydrodynamic and thermal boundary layers, boundary layer equations and their solutions for flat plates and pipes. Radiation: Planck's distribution law, Radiation properties, Kirchoff's law, diffuse radiation, Lambert's law, Intensity of radiation, Heat exchange between two black surfaces, Heat exchange between gray surfaces, radiation shield, Electrical analogy, Boiling and Condensation: different regimes of boiling heat transfer, Correlations of boiling heat transfer, Heat transfer coefficient for laminar film condensation on flat plate, Drop wise condensation. Heat Exchangers: Different types of heat exchangers, Logarithmic mean temperature difference and effectiveness for parallel flow and counter flow heat exchangers, Correction factor and fouling factor, Heat exchanger design by LMTD and effectiveness NTU methods.

FLUID MECHANICS AND FLUID MACHINES : Fluid Mechanics: Fluids and their properties, buoyancy and floatation, Kinematics and dynamics of fluid flow, similitude and dimensional analysis, Incompressible fluid flow in pipes, Steady flow of compressible fluids – normal shock waves, Fanno and Rayleigh lines, Oblique shock waves, Flow in a pipe with friction, Flow of viscous fluids – laminar and turbulent boundary layers, Fluid flow measurement. Fluid Machines: Centrifugal pumps: constructional details, specific speed, manometric and overall efficiencies, characteristic curves. Hydraulic turbines: classification constructional features of Pelton, Francis and Kaplan turbines, specific speed, velocity triangles, efficiencies, characteristic curves, governing systems, draft tubes, cavitation.

ENVIRONMENTAL ENGINEERING : Refrigeration : Basic refrigeration and heat pump cycles, Air refrigeration system, Aircraft refrigeration, Vapour compression refrigeration, Vapour absorption system, Refrigerants, Refrigerator components and controls, Unconventional methods of Refrigeration. Air-conditioning: Psychrometric charts, Different air-conditioning processes, Air-conditioning systems and equipments, air-conditioning plants, Selection of air-conditioner, Layout of different air conditioning systems, Air-distribution, duct design, Cooling Loads and their calculations, Human comfort and comfort chart, Different applications of refrigeration and air-conditioning.

ENERGY CONVERSION : Combustion Internal Engines: S.I. and C.I. engines, Combustion phenomenon, Combustion chambers, carburetion and fuel injection, Supercharging, engine fuels, various efficiencies and performance of I.C. engines, Engines emission and control. Steam Turbines: Flow of steam through nozzles, Steam turbine types, Velocity diagrams for impulse and reaction turbines, Efficiencies and governing. Gas Turbines: Centrifugal and axial flow compressors, Energy transfer equation, Velocity diagrams, Efficiency and performance of gas turbines, Multistage compression, Reheat and regeneration.

POWER PLANT ENGINEERING : Steam Power Plants: High pressure steam boilers and accessories, plant layout, Fuel handling and firing, ash, smoke and dust removal, Fluidized bed, Chimney and draught, Condensers, Heat balance sheet, Plant operation and maintenance, Thermal pollution and control. Hydro-electric power plants: Selection of site, Different layouts, Efficiency and load curves, Hydrology, hydrological cycle and hydrograph, Control in hydro-electric plants, Economic loading of hydro-power plants. Nuclear power plants: Nuclear reactions and fuels, Nuclear reactors, Nuclear power plant economics, Safety measures & site selection, Comparison of Nuclear, steam and hydro plants. Power plant economics: Economic load sharing between base load and peak load plants, typical load curves, Effect of variable load on power plant.

Mechanical Engg. - I

Mechanical Engg. - II 2018