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(Syllabus) Punjab PSC (Main) : Combined State Civil Services Exam - Mechanical Engineering
Punjab Public Service Commission
SYLLABI FOR THE EXAMINATION PART B MAIN EXAM
MECHANICAL ENGINEERING
PART-I
Mechanics:
1.1 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.
1.2 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.
2. Engineering Materials:
Basic concepts on structure of solids; common ferrous and non-ferrous materials
and their
applications; heat-treatment of steels; non-metals- plastics, ceramics,
composite materials
and nano-materials.
3. Theory of Machines:
Kinematic and dynamic analysis of plane mechanisms. Cams, Gears and epicyclic
gear
trains, flywheels, governors, balancing of rigid rotors, balancing of single and
multicylinder engines, linear vibration analysis of mechanical systems (single
degree of
freedom), Critical speeds and whirling of shafts.
4. Manufacturing Science:
4.1 Manufacturing Process:
Machine tool engineering—Merchant’s force analysis; Taylor’s tool life equation;
conventional machining; NC and CNC machining process; jigs and fixtures.
Non-conventional machining – EDM, ECM, ultrasonic, water jet machining etc;
application of lasers and plasmas; energy rate calculations.
Forming and welding processes—standard processes.
Metrology—concept of fits and tolerances; tools and gauges; comparators;
inspection of
length; position; profile and surface finish.
4.2. Manufacturing Management:
System design: factory location—simple OR models; plant layout— methods based;
applications of engineering economic analysis and break— even analysis for
product
selection, process selection and capacity planning; predetermined time
standards.
System planning; forecasting methods based on regression and decomposition,
design and
balancing of multi model and stochastic assembly lines; Inventory management—
probabilistic inventory models for order time and order quantity determination;
JIT
systems; strategic sourcing; managing inter plant logistics.
System operations and control: Scheduling algorithms for job shops; applications
of
statistical methods for product and process quality control —applications of
control charts
for mean, range, percent defective, number of defectives and defects per unit;
quality cost
systems; management of resources, organizations and risks in projects.
System improvement: Implementation of systems, such as total quality management,
developing and managing flexible, lean and agile organizations.
PAPER - II
1. Thermodynamics, Gas Dynamics and Turbine:
1.1 Basic concept of First –law and second law of Thermodynamics; concept of
entropy and reversibility; availability and unavailability and irreversibility.
1.2 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.
1.3 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.
2. Heat Transfer:
2.1 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 & spheres.
2.2 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.
2.3 Black body radiation—basic radiation laws such as Stefan-Boltzman, Planck
distribution, Wein’s displacement etc.
2.4 Basic heat exchanger analysis; classification of heat exchangers.
3. I .C. Engines:
3.1 Classification, thermodynamic cycles of operation; determination of
break power, indicated power, mechanical efficiency, heat balance sheet,
interpretation of performance characteristics, petrol, gas and diesel engines.
3.2 Combustion in SI and CI engines, normal and abnormal combustion;
effect of working parameters on knocking, reduction of knocking; Forms of
combustion chamber for SI and CI engines; rating of fuels; additives; emission.
3.3 Different systems of IC engines—fuels; lubricating; cooling and
transmission systems. Alternate fuels in IC engines.
4. Steam Engineering:
4.1 Steam generation—modified Rankine cycle analysis; Modern steam boilers;
steam at critical and supercritical pressures; draught equipment; natural and
artificial draught; boiler fuels solid, liquid and gaseous fuels. Steam
turbines—principle; types; compounding; impulse and reaction turbines; axial
thrust.
4.2 Steam nozzles—flow of steam in convergent and divergent nozzle; pressure at
throat for maximum discharge with different initial steam conditions such as
wet, saturated and superheated, effect of variation of back pressure;
supersaturated flow of steam in nozzles, Wilson line.
4.3 Rankine cycle with internal and external irreversibility; reheat factor;
reheating and regeneration, methods of governing; back pressure and pass out
turbines.
4.4 Steam power plants—combined cycle power generation; heat recovery steam
generators (HRSG) fired and unfired, co-generation plants.
5. Refrigeration and air-conditioning:
5.1 Vapour compression refrigeration cycle—cycle on p-H & T-s diagrams;
eco-friendly refrigerants—R134a,123; Systems like evaporators, condensers,
compressor, expansion devices. Simple vapour absorption systems.
5.2 Psychrometry—properties; processes; charts; sensible heating and cooling;
humidification and dehumidification effective temperature; air-conditioning load
calculation; simple duct design.