🏗️ OPTIONAL — CIVIL ENGINEERING

Papers: VI & VII · 500 marks. GS overlap: LOW (some GS-III infrastructure, disaster management). Best for: civil engineering graduates with recent and strong command of core subjects.

⚠️ Verify against the current UPSC notification at upsc.gov.in.

PAPER I

Engineering Mechanics, Strength of Materials and Structural Analysis: (a) Engineering Mechanics — units and dimensions, SI units, vectors, concept of force, concept of particle and rigid body; concurrent, non-concurrent and parallel forces in a plane, moment of force and varignon's theorem, free body diagram, conditions of equilibrium, principle of virtual work, equivalent force system; first and second moment of area, mass moment of inertia; static friction, inclined plane and bearings; kinematics and kinetics; kinematics in Cartesian and polar coordinates, motion under uniform and non-uniform acceleration, motion under gravity; kinetics of particle — momentum and energy principles, D'Alembert's principle, collision of elastic bodies, rotation of rigid bodies, simple harmonic motion, flywheel. (b) Strength of Materials — simple stress and strain, elastic constants, axially loaded compression members, shear force and bending moment, theory of simple bending, shear stress distribution across cross sections, beams of uniform strength; leaf spring; close-coiled helical springs; columns and struts; stresses due to torsion in circular shafts; principal stresses and strains; Mohr's circle; theories of elastic failure; thin and thick cylinders. (c) Structural Analysis — castiglione's theorems I and II, unit load method, method of consistent deformation applied to beams and pin-jointed trusses, slope-deflection, moment distribution, Kani's method of analysis and matrix method of analysis of indeterminate structures, rolling loads and influence lines, influence lines for determinate structures, arches, cables, three-hinged and two-hinged arches, plastic analysis of structures.
Design of Structures — Steel, Concrete and Masonry Structures: (a) Structural Steel Design — structural steel, factors of safety and load factors, riveted, bolted and welded joints and connections, design of tension and compression members, beams of built-up section, riveted and welded plate girders, gantry girders, stanchions with battens and lacings, slab and gusseted column bases, design of highway and railway bridges — pratt and warren trusses. (b) Design of Concrete and Masonry Structures — concept of mix design, reinforced concrete — working stress and limit state method of design, recommendations of I.S. codes, design of one-way and two-way slabs, stair-case slabs, simple and continuous beams of rectangular, T and L sections, compression members under direct load with or without eccentricity, isolated and combined footings, cantilever and counterfort type retaining walls, water tanks — design requirements for rectangular and circular tanks resting on ground; prestressed concrete — methods and systems of prestressing, anchorages, analysis and design of simple members; design of brick masonry as per I.S. codes; design of masonry retaining walls.
Fluid Mechanics, Open Channel Flow and Hydraulic Machines: (a) Fluid Mechanics — fluid properties and their role in fluid motion, fluid statics including forces acting on plane and curved surfaces; kinematics and dynamics of fluid flow — velocity and accelerations, stream lines, equation of continuity, irrotational and rotational flow, velocity potential and stream function, flownet, methods of drawing flownet, sources and sinks, flow separation, free and forced vortices; control volume equation, continuity, momentum, energy and moment of momentum equations from control volume equation, navier-stokes equation, Euler's equation of motion, application to fluid flow problems, pipe flow, plane, curved, stationary and moving vanes sluice gates, weirs, orifice meters and venturi meters; dimensional analysis and similitude; laminar and turbulent flow; flow through pipes. (b) Open Channel Flow — uniform and non-uniform flows, momentum and energy correction factors, specific energy and specific force, critical depth, resistance equations and variation of roughness coefficient; rapidly varied flow, flow in contractions, flow at sudden drop, hydraulic jump and its applications, surges and waves; gradually varied flow, classification of surface profiles, control section, step method of integration of varied flow equation, moving surges and hydraulic bore. (c) Hydraulic Machines and Hydropower — centrifugal pumps — types, characteristics, Net Positive Suction Head (NPSH), specific speed, pumps in parallel; reciprocating pumps, air vessels, hydraulic ram, efficiency parameters, rotary and positive displacement pumps, diaphragm and jet pumps; hydraulic turbines, types, classification, choice of turbines, performance parameters, controls, characteristics, specific speed; principles of hydropower development.
Geotechnical Engineering: soil type and structure — gradation and particle size distribution; consistency limits; water in soil — capillary and structural; effective stress and pore water pressure; permeability concept; field and laboratory determination of permeability; seepage pressure; quick sand conditions; compressibility and consolidation concept; consolidation theory; consolidation settlement analysis; compaction of soils; shear strength of soils; mohr coulomb concept; determination of shear parameters; field tests; earth pressure at rest, active and passive pressures; stability of slopes; bearing capacity of soils; foundation types and selection criteria; shallow foundations; deep foundations; pile types, capacity and settlement; well foundations; ground improvement techniques.

PAPER II

Construction Technology, Equipment, Planning and Management: (a) Construction Technology — engineering materials — physical properties of construction materials with respect to their use in construction; timber; bricks; aggregates; cement; cement mortar; cement concrete; properties of fresh and hardened concrete; workability, mixing, placement, compaction, curing and quality control of concrete; supplementary cementing materials; concrete mix design; ferro-cement, fibre reinforced concrete, high strength concrete and high performance concrete. (b) Construction, Planning and Management — construction activity, schedules, job layout, bar charts, organization of construction, quality assurance; project planning by CPM and PERT, analysis and interpretations, time-cost relationship, cost optimization, resource allocation and levelling, elements of engineering economics; methods of appraisal, present worth, annual cost, benefit-cost, incremental analysis; economy of scale and size; choosing between alternatives including levels of investments; project profitability.
Surveying and Transportation Engineering: (a) Surveying — classification of surveys, scales, accuracy; measurement of distances — direct and indirect methods; optical and electronic devices; measurement of directions, prismatic compass, local attraction; theodolites — types; measurement of elevations — spirit and trigonometric levelling; relief representation; contours; digital elevation modelling concept; establishment of control by triangulation and traversing — measurements and adjustment of observations, computation of coordinates; field astronomy, concept of global positioning system; map preparation by plane tabling and by photogrammetry; remote sensing concepts, map substitutes. (b) Railway Engineering — permanent way — components, types and their functions; functions and requirements of rails, sleepers, ballast; geometric design of railway track — gradients, cant and negative superelevation; points and crossings; stations and yards; signalling and interlocking; construction and maintenance of permanent ways. (c) Highway Engineering — principles of highway planning, highway alignments; geometrical design — cross section, camber, superelevation, horizontal and vertical curves; classification of roads — low cost roads, flexible pavements, rigid pavements; design of pavements and their construction, evaluation of pavement failure and strengthening; drainage of roads; traffic engineering and traffic surveys; intersections, markings, signs, signals and street lighting; road safety.
Hydrology, Water Resources and Engineering: (a) Hydrology — hydrological cycle, precipitation, evaporation, transpiration, depression storage, infiltration, overland flow, hydrograph, flood frequency analysis, flood routing through a reservoir, channel flow routing — Muskingum method. (b) Ground water flow — specific yield, storage coefficient, coefficient of permeability, confined and unconfined aquifers, aquifers, aquitards, radial flow into a well under confined and unconfined conditions; (c) Water Resources Engineering — ground and surface water resources, single and multipurpose projects, storage capacity of reservoirs, reservoir losses, reservoir sedimentation, flood control; (d) Irrigation Engineering — water requirements of crops — consumptive use, quality of water for irrigation, duty and delta, irrigation methods and their efficiencies; canals — distribution systems for canal irrigation, canal capacity, canal losses, alignment of main and distributory canals, most efficient section, lined canals, their design, regime theory, critical shear stress, bed load; water logging, its causes and control, drainage system design, salinity; canal structures — design of cross regulators, head regulators, canal falls, aqueducts, metering flumes and canal outlets; diversion headwork — principles and design of weirs on permeable foundation, Khosla's theory, energy dissipation, stilling basin, sediment excluders; storage works — types of dams, design principles of rigid gravity and earth dams, stability analysis, foundation treatment, joints and galleries, control of seepage; spillways — spillway types, energy dissipation; river training — objectives of river training, methods of river training.
Environmental Engineering: (a) Water Supply Engineering — sources of supply, yields, design of intakes and conductors; estimation of demand; water quality standards; control of water-borne diseases; primary and secondary treatment, detailing and maintenance of treatment units; conveyance and distribution systems of treated water, leakages and control; rural water supply; institutional and industrial water supply. (b) Waste Water Engineering — urban rain water disposal; systems of sewage collection and disposal; design of sewers and sewerage systems; pumping; characteristics of sewage and its treatment; disposal of products of sewage treatment, streamflow rejuvenation; institutional and industrial sewage management; plumbing systems; rural and semi-urban sanitation. (c) Solid Waste Management — sources, classification, collection and disposal; design and management of landfills. (d) Air and Noise Pollution and Ecology — sources and effects of air pollution, monitoring of air pollution; noise pollution and standards; ecological chain and balance, environmental assessment.

BOOKLIST

Standard undergraduate texts: Strength of Materials — Timoshenko / R.K. Bansal · Structural Analysis — C.S. Reddy · RCC Design — Ashok K. Jain / Pillai & Menon · Steel Design — S.K. Duggal · Fluid Mechanics — Modi & Seth / R.K. Bansal · Geotechnical — Gopal Ranjan & Rao / B.C. Punmia · Surveying — B.C. Punmia · Transportation — Khanna & Justo · Environmental — S.K. Garg (2 vols) · IS Codes (IS 456, IS 800 etc.).

STRATEGY

Numericals dominate — practise daily; show units and all steps.
Memorise IS-code provisions for design questions.
Draw neat sketches for every design/structural answer.
Time management is critical — engineering papers are long; practise full 3-hour papers.
Solve 15 years of PYQs.
Only choose if your fundamentals are current. If you graduated years ago and haven't touched these subjects, the revision burden is very heavy alongside GS.

Pros: objective evaluation; static syllabus; small competition pool; comfortable if recently graduated. Cons: zero GS overlap; very large syllabus; heavy numerical/drawing load; time pressure in the exam.