The Arunachal Pradesh Public Service Commission (APPSC) conducts the Civil Services Examination for entry-level appointments to the various departments and Services under Government of Arunachal Pradesh and to advise the government on civil service matters. It is the state agency authorized by the Government of Arunachal Pradesh.
Arunachal Pradesh PSC Mains Syllabus for Optional Paper Mechanical engineering
PAPER-I
- Mechanics : Mechanics of Rigid Bodies : Equations of equilibrium in space and its application; first and second moments of area; simple problems on friction; kinematics of particles for plane motion; elementary particle dynamics.
Mechanics of Deformable Bodies :
Generalized Hooke's law and its application; design problems on axial stress, shear stress and bearing stress; material properties for dynamic loading; bending shear and stresses in beams; determination of principle stresses and strains-analytical and graphical; compound and combined stresses; bi-axial stresses-thin walled pressure vessel; material behaviour and design factors for dynamic load; design of circular shafts for bending and torsional load only; deflection of beam for statically determinate problems; theories of failure.
- Engineering Materials : Basic concepts on structure of solids, common ferrous and non-ferrous materials and their applications; heat-treatment of steels; non-metalsplastics, cermics, composite materials and nano-materials.
- Theory of Machines : Kinematic and dynamic analysis of plane mechanisms. Cams, Gears and empicyclie gear trains, flywheels, governors, balancing of rigid rotors, balancing of single and multicy- linder engines, linear vibration analysis of mechanical systems (single degree of freedom), Critical speeds and whirling of shafts.
- Manufacturing Science :
- Manufacturing Process
- Manufacturing Management
- System improvement
PAPER - II
- Thermodynamics, Gas Dynamics Turbine : Basic concept of First-law and Second law of Thermodynamics; concept of entropy and reversibility; availability and unavailability and irreversibility. Classification and properties of fluids; incompressible and compressible fluids flows; effect of Mach number and compressibility; continuity momentum and energy equations; normal and oblique shocks; one dimensional isentropic flow; flow or fluids in duct with frictions that transfer. Flow through fans, blowers and compressors; axial and centrifugal flow configuration; design of fans and . compressors; single problems compresses and turbine cascade; open and closed cycle gas turbines; work done in the gas turbine; reheat and regenerators.
- Heat Transfer : Conduction heat transfer—general conduction equation-Laplace, Poisson and Fourier equations; Fourier law of conduction; one dimensional steady state heat conduction applied to simple wall, solid and hollow cylinder and spheres. Convection heat transfer—Newton's law of convection; free and forces convection; heat transfer during laminar and turbulent flow of an incompressible fluid over a flat plate; concepts of Nusselt number, hydrodynamic and thermal boundary layer their thickness; Prandtl number; analogy between heat and momentum transfer—Reynolds, Colbum, Prandtl analogies; heat transfer during laminar and turbulent flow through horizontal tubes; free convection from horizontal and vertical plates. Black body radiation—basic radiation laws such as Stefan-boltzman, Planck distribution, Wein's displacement etc. Basic heat exchanger analysis; classification of heat exchangers.
- Engines
- Steam Engineering
- Refrigeration and Air-conditioning
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