| Re: TNPSC exam Mechanical Engineering Syllabus
Here I am providing you Syllabus of TNPSC Combined Engineering Services Exam (Mechanical and Production Engineering) for your preparation.
Syllabus of TNPSC Combined Engineering Services Exam (Mechanical and Production Engineering):
APPLIED MECHANICS:
Statics of particles - Resolution of forces - supports and reactions - Determination of forces in member of statically determinate plane trusses by method of joints and method of section. Controls - moment of inertia, position, velocity and acceleration of penticles. Newton's Second law, Equations of motion, principle of work and energy, impulse and momentum, impact of elastic bodies, friction - laws, simple machines.
ENGINEERING THERMODYNAMICS:
Energy - Work - heat properties - states - processes. Energy equations. Work and PV diagrams. Laws of thermodynamics Carnot cycle, reversed carnet cycle, efficiency - COP. Specific heats - gas laws - perfect gas relationships. Mole concept, molar volume, internal energy, enthalpy, molecular weight of gas mixtures. Methods of cycle analysis - tables of thermodynamic properties of air - thermal efficiency To cycle – diesel cycle - dual combustion cycle - comparison of cycles - problems on use of steam tables.
INTERNAL COMBUSTION ENGINES:
Basic engine nomenclature - engine classification - working of SI engine, CI engine, two stroke engine and four stroke engine - carburation - air fuel mixture ratio. Combustion in SI engine - ignition systems - timing - spark plugs – combustion chamber. Combustion in CI engine - ignition delay - valve timing diagram - fuel supply injection systems. Performance of SI and CI engines - factors affecting the performance characteristics. Cooling - lubrication systems, fuels used in SI and CI engines. Measurements of engine power - indicated mean effective pressure - indicated horse power - brake horse power - specific fuel consumption - thermal efficiency.
GAS DYNAMICS AND JET PROPULSION:
Energy equation for flow process - velocity of sound - mach number - effect of Mach number on compressibility. Isentropic flow with variable area - Area ratio as a function of Mach Number - mass flow rate - flow through nozzles – flow through diffusers. Solution of Fanne flow equation - isothermal flow with friction. Flow with normal shockwaves - governing equations. Prandtl - Meyer equation. Aircraft propulsion – jet engines - energy flow - thrust power and propulsive efficiency - performance of jet engine. Rocket engines - performance - solid and liquid propellant rockets. Comparison of various propulsion systems.
REFRIGERATION AND AIR CONDITIONING:
Principles of refrigeration - mechanism of producing cold - types of refrigerations - refrigerating effect and unit of refrigeration – coefficient of performance of refrigerator. Air refrigeration systems - reversed Carnot cycle - Bell colemen cycle. Simple vapour compression system. Advanced vapour compression systems - T.S Diagram - pH chart - dry and wet compression - under cooling. Vapour absorption systems. Refrigerants. Refrigeration applications. Air conditioning - Factors in air conditioning – simple heating and cooling - dehumidification - humidification.
FLUID MECHANICS:
Classification of fluids - fluid properties - Ideal fluid flow - Rotational - irrational flow - Bernoulli's equation - Flow through pipes - pipes in series - pipes in parallel - DARCY'S equation - viscous fluid flow - Navier - stokes equation - Laminar and Turbulent flow- Reynold's number - Compressible flow of perfect gas - speed of sound wave - concept of Mach number – Hydraulic Jump.
TURBOMACHINERY:
Definition and classification of turbo machines, equation for energy transfer. Centrifugal fans, blowers and Compressors. Axial flow fans and compressors. Axial turbine stages. Free and forced vortex flow. Centrifugal pumps - workdone - head – specific energy - priming - performance of multistage pumps. Hydraulic turbines - different types - governing, performance - selection of turbines. Gravitation - method of preventing – hydraulic coupling - torque convertors.
HEAT AND MASS TRANSFER:
Modes of heat transfer, one dimentional heat conduction, resistance concept, unsteady state heat conduction. Fins, free and forced conviction. Thermal boundary layer concept. D.B. equations and other correlations, radiation, black and gray bodies, 15 shape factor design of heat enchangers. NTU method. Analogy of mass, Heat and Momentum transfers, mass transfer equipments.
POWER PLANT ENGINEERING:
Sources of energy - conventional and non – conventional Location of steam power plant, diesel power plant and nuclear power plants - layout. Disposal of waste, safety and hazards. Hydroelectric power plants, Gas power plants – environmental problems. Power plant economics, cost benefit analysis - future power plants wind, tidel, solar energy - problems and prospects. Geothermal energy, fuel cells, thermionic and thermo electric converters etc.
INSTRUMENTATION AND CONTROL:
Elements of measurement systems. Range, span, sensitivity, accuracy, precision and repeatability of instrument. Errors in measurement system. Transducers for measurement of pressure, manometers, temperature measuring instruments, measurement of speed, strain gauge basics, force measurement using load cells and electromechanical methods. Dynamometers for power measurement, flow meters, rotameters, using velocity process, hot wire anemometer, accelerometers. Open and closed loop control systems. Transfer function, Hydraulic and Pneumatic control systems, Different types of controls like, two way proportional, differential and integral control.
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