Recruitment Board: APPSC

**Official Website:** https://psc.ap.gov.in

**Pay Scale**: Rs.37,100 – 91,450

Assistant Executive Engineers (Civil /Mech):

Age:18-42 years

**EXAM PATTERN:**

**SCREENING TEST PATTERN:**

**MAIN EXAM PATTERN:**

**Previous weightage:**

**PART – A (50 QUESTIONS-50 MARKS)****GENERAL STUDIES AND MENTAL ABILITY**

1. Events of national and international importance.

2. Current affairs- international, national and regional.

3. General Science and it applications to the day to day life Contemporary

developments in Science & Technology and information Technology

4. Social- economic and political history of modern India with emphasis on Andhra Pradesh.

5. Indian polity and governance: constitutional issues, public policy, reforms and e-governance initiatives with specific reference to Andhra Pradesh.

6. Economic development in India since independence with emphasis on Andhra Pradesh.

7. Physical geography of Indian sub-continent and Andhra Pradesh.

8. Disaster management: vulnerability profile, prevention and mitigation strategies, Application of Remote Sensing and GIS in the assessment of Disaster.

9. Sustainable Development and Environmental Protection

10.Logical reasoning, analytical ability and data interpretation.

11.Data Analysis:

a) Tabulation of data

b) Visual representation of data

c) Basic data analysis (Summary Statistics such as mean, median, mode,variance and coefficient of variation) and Interpretation

12. Bifurcation of Andhra Pradesh and its Administrative, Economic, Social, Cultural, Political, and Legal implications/problems

**PART – B****100 QUESTIONS 100 MARKS****1. Strength of Material:**

Forces, moments, Equilibrium; Applying the Equation of Equilibrium, Planar Trusses; Friction;Simple Stresses & Strains: Elasticity and plasticity, Types of stresses & strains, Generalized

Hooke’s law – Stress–strain diagram for mild steel – Working stress –Factor of safety – Lateralstrain, Poisson’s ratio & volumetric strain – Elastic modulii & the relationship between them –Bars of varying section – composite bars –Temperature stresses. Strain energy – Resilience –Gradual, sudden, impact and shock loadings. Shear Force (S.F) and Bending Moment (B.M):Definition of beam –Types of beams – Concept of shear force and bending moment – S.F and

B.M for cantilever, simply supported and overhanging beams subjected to point loads, U.D.L.,uniformly varying loads and combination of these loads – Point of contra flexure –Relation between S.F., B.M and rate of loading at a section of a beam.Flexural Stresses: Theory of simple bending – Assumptions – bending equation: Neutral axis –bending stresses – section modulus of different sections – Design of simple beam sections.Shear Stresses: Derivation of formula –Shear stress distribution across various beam sectionsPrincipal Stresses and Strains: Stresses on an inclined section of a bar under axial loading –

Compound stresses – Normal and tangential stresses on an inclined plane for biaxial stresses –Two perpendicular normal stresses accompanied by a state of simple shear –Mohr’s circle of stresses –Principal stresses and strains – Analytical and graphical solutions. Different theories of Failure: Various theories of failure. Columns and struts – Euler’s column theory – types of end conditions; critical load on the column – derivations – Rankin’s formula for columns. Lifting

machines, definitions, Law of machine, study of important lifting machines; virtual work principal.

Torsion of Circular Shafts: Theory of pure torsion – Torsion Equations: Assumptions made in the theory of pure torsion – Torsional moment of resistance – Polar section modulus – Power transmitted by shafts – Combined bending and torsion and end thrust. Springs-Helical and leaf

springs.

Thin & Thick Cylinders and Spherical shells: Thin seamless shells – formula for longitudinal and circumferential stresses and max shear stresses – hoop, longitudinal and volumetric strains –changes in diameter, and volume of thin shells.

2. Fluid Mechanic and Machinery

Fluid statics: Dimensions and units: physical properties of fluids-specific gravity, viscosity, and surface tension -vapour pressure and their influence on fluid motion-atmospheric, Pascal’s law, gauge and vacuum pressures – Measurement of pressure-Piezometer, U-tube and differential manometers..Hydrostatics, Fluid forces on planes and curved surfaces, submerged and floating bodies, Buoyancy and stability. Fluid kinematics: description of flow pattern and types of fluid flows – Velocity and acceleration: convective, temporal, tangential and normal accelerations, control volume-basic principles of fluid flow, continuity equation for 3-D, 2-D, 1-D flow. Rotational and irrotational motion, Velocity potential, stream function, flow net.**Fluid dynamics:** Surface and body forces – Euler’s and Bernoulli’s equations for flow along a stream line and its applications, momentum equation and its applications. Flow measurement devices – Gross measurement: Venturimeter, Orificemeter, Turbine flow meters, Rotameters; Pressure measurement: Pitot tubes, hot wire/film anemometer, their measurement principles and sources of errors; calibration.

Closed conduit flow: Reynolds experiment – Major and Minor losses in pipes-pipes in series and pipes in parallel-total energy line-hydraulic gradient line, water hammer. Boundary Layer Concepts: Definition, thicknesses, characteristics along thin plate, laminar and turbulent

boundary layers boundary layer in transition, separation of boundary layer, submerged objects – Drag and lift.

Basics of turbo machinery: Hydrodynamic force of jets on stationary and moving flat, inclined,

and curved vanes, velocity diagrams, work done and efficiency, Hydraulic Turbines: Classification of turbines, Heads and efficiencies, impulse and reaction turbines, Pelton wheel, Francis turbine and Kaplan turbine – working proportions, work done, efficiencies , hydraulic

design – Draft tube theory-functions and efficiency. Performance of hydraulic turbines:Geometric similarity, Unit and specific quantities, characteristic curves, governing of turbines,selection of type of turbine, cavitation. Centrifugal pumps: Classification, working, work done

– barometric head-loss and efficiencies, specific speed – Performance characteristic curves,

NPSH. Selection of pumps and economic evaluation of pumping.

Hydraulic Directional Control – Check Valves, Shuttle Valves, two- three- and four-Way Directional Control Valves, Directional Control Valve Actuation. Hydraulic Pressure Control –Pressure Relief Valves, Unloading Valves, Pressure Reducing Valves, Sequence Valves,

Counterbalance Valves, Pressure Compensated Pumps.Hydro Projects And Plant: Classification – Typical layouts – plant auxiliaries – plant operation, pumped storage plants. Hydro Electric Power Plant: Water power – Hydrological cycle / flow measurement – drainage area characteristics – Hydrographs – Storage and Pondage – Classification of dams and spill ways.

**SCHEME FOR THE MAIN EXAMINATION:**

**PAPER – I****GENERAL STUDIES & MENTAL ABILITY**

1. Events of national and international importance.

2. Current affairs – international, national and regional.

3. General Science and it applications to the day to day life Contemporary developments in Science & Technology and information Technology

4. Social- economic and political history of modern India with emphases on Indian

national movement.

5. Indian polity and governance: constitutional issues, public policy, reforms and egovernance initiatives.

6. Economic development in India since independence.

7. Physical geography of India sub-continent.

8. Disaster management: vulnerability profile, prevention and mitigation strategies,

Application of Remote Sensing and GIS in the assessment of Disaster.

9. Sustainable Development and Environmental Protection

10. Logical reasoning, analytical ability and data interpretation.

11. Data Analysis:

a) Tabulation of data

b) Visual representation of data

c) Basic data analysis (Summary Statistics such as mean and variance coefficient of variation etc.,) and Interpretation

12. Bifurcation of Andhra Pradesh and its Administrative, Economic, Social, Cultural,Political, and legal implications/problems

**PAPER-2****COMMON TO CIVIL AND MECHANICAL ENGINEERING****1. Strength of Material:**

Forces, moments, Equilibrium; Applying the Equation of Equilibrium, Planar Trusses; Friction.Simple Stresses & Strains: Elasticity and plasticity, Types of stresses & strains, Generalized Hooke’s law–stress –strain diagram for mild steel – Working stress – Factor of safety –Lateral strain, Poisson’s ratio & volumetric strain – Elastic modulii & the relationship between them –Bars of varying section – composite bars – Temperature stresses. Strain energy –Resilience – Gradual, sudden, impact and shock loadings.

Shear Force (S.F) and Bending Moment (B.M): Definition of beam – Types of beams –Concept of shear force and bending moment – S.F and B.M for cantilever, simply-supported and overhanging beams subjected to point loads, U.D.L., Uniformly varying loads and combination of these loads –Point of contraflexure –Relation between S.F., B.M and rate of loading at a section of a beam.

Flexural Stresses: Theory of simple bending -Assumptions – bending equation: Neutral axis – bending stresses –section modulus of different sections –Design of simple beam sections.Shear Stresses: Derivation of formula – Shear stress distribution across various beam sections

Principal Stresses and Strains: Stresses on an inclined section of a bar under axial loading –

Compound stresses – Normal and tangential stresses on an inclined plane for biaxial stresses – Two perpendicular normal stresses accompanied by a state of simple shear –Mohr’s circle of stresses – Principal stresses and strains – Analytical and graphical solutions. Different theories of

Failure: Various theories of failure. Columns and struts – Euler’s column theory – types of end conditions; critical load on the column – derivations – Rankin’s formula for columns. Lifting machines, definitions, Law of machine, study of important lifting machines; virtual work principal.

Torsion of Circular Shafts: Theory of pure torsion – Torsion Equations: Assumptions made in the

theory of pure torsion – Torsional moment of resistance – Polar section modulus – Power

transmitted by shafts – Combined bending and torsion and end thrust. Springs-Helical and leaf springs

Thin & Thick Cylinders and Spherical shells: Thin seamless shells – Formula for longitudinal and circumferential stresses and max shear stresses – hoop, longitudinal and volumetric strains – changes in diameter, and volume of thin shells.

2) Fluid Mechanic and Machinery

Fluid statics: Dimensions and units: physical properties of fluids-specific gravity, viscosity, and surface tension – Vapour pressure and their influence on fluid motion – atmospheric, Pascal’s law, gauge and vacuum pressures – measurement of pressure – Piezometer, U-tube and differential manometers. Hydrostatics, Fluid forces on planes and curved surfaces, submerged and floating bodies, Buoyancy and stability. Fluid kinematics: description of flow pattern and types of fluid flows – Velocity and acceleration: convective, temporal, tangential and normal accelerations, control volume – basic principles of fluid flow, continuity equation for 3-D, 2-D,

1-D flow. Rotational and irrotational motion, Velocity potential, stream function, flow net. Fluid dynamics: Surface and body forces –Euler’s and Bernoulli’s equations for flow along a stream line and its applications, momentum equation and its applications. Flow measurement devices – Gross measurement: Venturimeter, Orificemeter, Turbine flow meters, Rotameters;

Pressure measurement: Pitot tubes, Hot wire/film anemometer, their measurement principles and sources of errors; calibration.

Closed conduit flow: Reynolds experiment – Major and Minor losses in pipes-pipes in series and pipes in parallel-total energy line-hydraulic gradient line, water hammer. Boundary Layer Concepts: Definition, thicknesses, characteristics along thin plate, laminar and turbulent boundary layers boundary layer in transition, separation of boundary layer, submerged objects – Drag and lift.

Basics of turbo machinery: Hydrodynamic force of jets on stationary and moving flat, inclined,

and curved vanes, velocity diagrams, work done and efficiency, Hydraulic Turbines: Classification of turbines, Heads and efficiencies, impulse and reaction turbines, Pelton wheel, Francis turbine and Kaplan turbine-working proportions, work done, efficiencies, hydraulic

design – Draft tube theory-functions and efficiency. Performance of hydraulic turbines: Geometric similarity, Unit and specific quantities, characteristic curves, governing of turbines, selection of type of turbine, Cavitation. Centrifugal pumps: Classification, working, work done

– barometric head-loss and efficiencies specific speed-performance characteristic curves, NPSH. Selection of pumps and economic evaluation of pumping. Hydraulic Directional Control –Check Valves, Shuttle Valves, two-three- and four-Way Directional Control Valves,

Directional Control Valve Actuation. Hydraulic Pressure Control – Pressure Relief Valves,Unloading Valves, Pressure Reducing Valves, Sequence Valves, Counterbalance Valves, Pressure Compensated Pumps.

Hydro Projects And Plant: Classification – Typical layouts – plant auxiliaries – plant operation,

pumped storage plants. Hydro Electric Power Plant: Water power – Hydrological cycle / flow

measurement – drainage area characteristics – Hydrographs – storage and Pondage –

classification of dams and spill ways.

**Paper-3****COMMON TO CIVIL AND MECHANICAL ENGINEERING**

1. ENGINEERING DRAWING:

Conic Sections including the Rectangular Hyperbola. Cycloid, Epicycloid and Hypocycloid, Involute. Scales – Plain, Diagonal and Vernier Scales. Principles of Orthographic Projections – Conventions – Projections of Points and Lines Projections of Plane regular geometric figures,

Projections of Regular Solids – Auxiliary Views. Sections or Sectional views of Right Regular

Solids – Prism, Cylinder, Pyramid, Cone – Auxiliary views – Sections of Sphere. Development of

Surfaces of Right Regular Solids – Prism, Cylinder, Pyramid and Cone Principles of Isometric

Projection – Isometric Scale – Isometric Views – Conventions – Isometric Views of Lines, Plane

Figures, Simple and Compound Solids – Isometric Projection of objects having non- isometric

lines. Isometric Projection of Spherical Parts. Conversion of Isometric Views to Orthographic

Views and Vice-versa – Conventions Auto- CAD: Basic principles.**2. Environmental science:**

Definition, Scope and Importance – Need for Public Awareness. Renewable and nonrenewable resources – Natural resources and associated problems – Forest resources – Use and over – exploitation, deforestation– Timber extraction – Mining, dams and other effects on forest and tribal people – Water resources – Use and over utilization of surface and ground water – Floods, drought, conflicts over water, dams – benefits and problems – Mineral resources: Use and exploitation, environmental effects of extracting and using mineral resources. – Food resources: World food problems, changes caused by agriculture and

overgrazing, effects of modern agriculture, fertilizer-pesticide problems, water logging, salinity.- Energy resources: Growing energy needs, renewable and non-renewable energy sources use of alternate energy sources. Land resources: Land as a resource, land degradation, man induced landslides, soil erosion and desertification. Role of an individual in conservation of natural resources. Equitable use of resources for sustainable lifestyles.

**3. ECOSYSTEMS**: Concept of an ecosystem. – Structure and function of an ecosystem. -Producers, consumers and decomposers. – Energy flow in the ecosystem – Ecological succession. – Food chains, food webs and ecological pyramids. – Introduction, types and characteristic features, Structure and function of Forest, Grassland, Desert and Aquatic ecosystems.**4. BIODIVERSITY AND ITS CONSERVATION:** Introduction – Definition: genetic, species and ecosystem diversity. – Bio-geographical classification of India – Value of biodiversity: consumptive use, productive use, social, ethical, aesthetic and option values – . Biodiversity at global, national and local levels. India as a mega-diversity nation – Hot-sports of biodiversity -Threats to biodiversity: habitat loss, poaching of wildlife, man-wildlife conflicts. – Endangered

and endemic species of India – Conservation of biodiversity: In-situ and Ex-situ conservation of biodiversity. Definition, Cause, effects and control measures of Air pollution, Water pollution, Soil pollution, Marine pollution, Noise pollution, Thermal pollution and Nuclear hazards.**5. SOLID WASTE MANAGEMENT:** Causes, effects and control measures of urban and industrial wastes. – Role of an individual in prevention of pollution.**6. DISASTER MANAGEMENT:** floods, earthquake, cyclone and landslides.**7. SOCIAL ISSUES AND THE ENVIRONMENT:** From Unsustainable to Sustainable development -Urban problems related to energy – Water conservation, rain water harvesting, watershed management – Resettlement and rehabilitation of people; its problems and concerns. Environmental ethics: Issues and possible solutions. Climate change, global warming, acid rain, Open zoneone layer depletion, nuclear accidents and holocaust. Wasteland reclamation. Consumerism and waste products. Environment Protection Act. Air (Prevention and Control of Pollution) Act. Water (Prevention and control of Pollution) Act. Wildlife

Protection Act. Forest Conservation Act – Issues involved in enforcement of environmental legislation. Public awareness.**8. HUMAN POPULATION AND THE ENVIRONMENT:** Population growth, variation among nations. Population explosion – Family Welfare Programme. Environment and human health. Human Rights. Value Education. HIV/AIDS. Women and Child Welfare. Role of information Technology in Environment and human health.

9. PRINCIPLES OF ELECTRICAL AND ELECTRONIC ENGINEERING:

i. Electrical Circuits – R-L-C Parameters, Voltage and Current Independent and Dependent Sources, Source Transformation – V–I relationship for Passive elements, Kirchoff’s Laws, Network reduction techniques – series, parallel, series- parallel, star–to-delta, delta-to-star transformation,

ii. Single Phase AC Circuits – R.M.S. and Average values, Form Factor, steady state analysis of series, Parallel and Series parallel Combinations of R, L and C with Sinusoidal excitation,concept of reactance, Impedance, Susceptance and Admittance – phase and phase difference, Concept of Power Factor, j-notation.

iii. P-N Junction Diode – Diode equation, Energy Band diagram, Volt- Ampere characteristic, Temperature dependence, Static and dynamic resistances, Equivalent circuit, Diffusion and Transition Capacitances.

iv. Bipolar Junction Transistor (BJT) – Construction, Principle of Operation, Symbol, Amplifying Action, Common Emitter, Common Base and Common Collector configurations. Concepts of Feedback amplifiers and Oscillators

v. Special Purpose Devices – Breakdown Mechanisms in Semi Conductor Diodes, Zener diode characteristics, Use of Zener diode as simple regulator.

vi. Rectifiers and Linear ICs: PN junction diode applications as Half ware, full ware and Bridge

Rectifiers, characteristics of Op-Amp, Application of Op – Amps (Inverting, Non – Inverting, Differentiator and Integrator)**10. COMPUTER FUNDAMENTALS:**

Basics of computer and its operation: Functional Components and their inter-connections, concept of Booting, Use of Operating System for directory listing, hierarchical directory structure, renaming, deleting files/folders, Memory and types of memory, working with USB flash drives, copying files, concepts of path and pathname, switching between tasks, installation/removal of applications.