: SSC : Junior Engineer (CPWD)
The standard of the questions in Engineering subjects will be approximately on
the level of Diploma in Engineering (Civil/ Electrical/ Mechanical) from a
recognized Institute, Board or University and recognized by All India Board of
Technical Education. All the questions will be set in SI units.
Questions will be aimed at testing the candidate's general awareness of
the environment around him and its application to society. Questions will
also be designed to test knowledge of current events and of such matters of
everyday observations and experience in their scientific aspect as may be
expected of any educated person. The test will also include questions
relating to India and its neighboring countries especially pertaining to
Sport, History, Culture, Geography, Economic Scene, General Polity, Indian
Constitution and Scientific Research, etc. These questions will be such that
they do not require a special study of any discipline.
Engineering (Civil and Structural)
Materials: Physical and Chemical properties, classification, standard
tests, uses and manufacture/quarrying of materials e.g. building stones,
silicate based materials, cement (Portland), Asbestos products, Timber and Wood
based Products, laminates, bituminous materials, paints, varnishes.
Surveying: Principles of surveying, working of properties,
compass and bearing, plane table surveying, theodolite traverse, adjustment of
theodolite, levelling and contouring, curvature, refraction, permanent
adjustment of dumpy level, methods of contouring and uses of a control map,
Soil Mechanics: Origin of soil phase diagram, definitions
of void ratio, porosity, degree of saturation, water content, specific gravity
of soil grains and unit weights, grain size distribution curves for different
solid and their uses. Atterjerg's limits, ISI soil classification, plasticity
chart, coefficient of permeability, effective stress, consolidation of soils.
Calculation of shear strength of soils, direct shear test, vane shear test,
triaxial test, soil compaction, Lab compaction, Lab compaction test, moisture
content and bearing capacity of soils, plate load test, standard penetration
Hydraulics: Fluid properties, hydrostatics, measurements of
flow, Bernoulli's theorem and its application, flow through pipes, flow in open
channels, weirs, flumes, spillways, pumps and turbines.
Environmental Engineering: Quality of water, source of water
supply, purification of water, distribution of water, need of sanitation,
sewerage system, circular sewers, oval sewer, sewer appurtenances, surface water
drainage, sewage treatments.
Structural Engineering : Theory of structures: Elasticity
constants, type of beams, determinate and indeterminate, bending moment and
shear force diagrams of simply supported, cantilever and over hanging beams.
Moment of area and moment of inertia for rect. & circular section, bending
moment and shear stress for tee, channel and compound sections, chimneys, dams
and retaining walls, eccentric loads, slope deflection of simply supported and
cantilever beams, critical load and columns, torsion of circular section.
Concrete Technology : Properties, Advantages and uses of
concrete, cement aggregates quality, water cement ratio, workability, mix
design, storage, batching, mixing, placement, compaction, finishing and curing
of concrete, quality control of concrete, hot weather and cold weather
concreting, repair and maintenance of concrete structure.
beams: flexural strength, shear strength, bond strength, design of
single reinforced beans, lintels, cantilever beams, double reinforced beams, one
way slabs, two way slabs, isolated footings, reinforced brick work. T-beams,
columns, staircases, retaining walls, water tanks (RCC design questions may be
based on both Limit State method and Working Stress method).
Steel Design: Steel design and construction of steel columns,
beams, roof trusses, plate girders.
General Engineering (Electrical and Mechanical)
Basic Electrical Engg.: Elect. Measurements, Concepts of
current, voltage, resistance, power and energy, their units, Ohm's law.
Circuit Law: Kirchooff's law, solution of simple network
problems, Network theorems and their applications, Electro-magnetism, concept of
flux, e m f, reluctance, magnetic circuits.
induction, self and mutual inductance.
fundamentals, instantaneous, peak, R.M.S. and average values of alternating
waves, Equation of sinusoidal wave form, simple series and parallel AC. circuits
consisting of R.L. and C, Resonance.
and measuring instruments, Moving coil and moving iron ammeters and voltmeters,
Extension of range, Wattmeters, Multimeters, megger, Basic Electronics.
machines : Basic principles ofD.C. motors, generators, their
characteristics, Speed control and starting of D.C. motors, losses and
efficiency of D.C. machines.
and 3-phase Transformers: Principles of operation, equivalent circuit, voltage
regulation, O.C. and S.C. tests, efficiency, auto transformers.
Synchronous machines, generation of 3-phase e m f, armature reaction, Voltage
regulation, parallel operation of two alternators, synchronizing, starting and
applications of synchronous motors.
3-Phase Induction motor, rotating magnetic field, principle of operation,
equivalent circuit, torque-speed characteristics, starting and speed control of
3-phase induction motors, Fractional KW motors, 1-phase induction motors, A.C.
series motor, reluctance motor.
General, Transmission and Distribution: Different types of
power stations, Load factor, diversity factor, demand factor, simple problems
thereon, cost of generation, inter- connection of power stations.
Power factor improvement, various types of tariffs, types of faults, short
circuit current for symmetrical faults.
Switchgears- rating of circuit breakers: Principles of a extinction by oil and
air, H.R.C. fuses, Protection, earth leakage, over current, Buchhotgz relay,
Merz- Prince system of protection of generators & transformers, protection
of feeders and bus bars.
Lightning arresters, Various transmission and distribution systems, Comparison
of conductor materials, efficiency for different systems.
Utilization of Electrical Energy, Illumination, electric heating, Electric
welding, electroplating, electric drives and motors.
Flow of Fluids: Laminar & turbulent flow, equation of
continuity, Bernoulli's theorem, measurement of discharge, flow through pipes,
friction losses, Forces of jet impinging on vanes, blades, work done and
efficiency, classification of turbines & pumps.
Laws of thermodynamics, change in entropy in various processes; uses of steam,
Properties of steam table & charts; Construction & Working of Cochran,
Lancashire locomotive & Babcock & Wilcox boilers, working of steam
turbine, Otto & Diesel Cycles, working of IC engines, Carburetion, Solex
Carburettor. Diesel fuel, pump & injector: Cooling & lubrication.
Production Engineering: Foundry- Different casting processes,
concept of Patterns; types of mould making, purring defect in castings, causes
& remedies, Welding-classification and types of welding, Testing and defects
in welds. Lathes- working of lathe, various tools, operation on lathes, types of
lathes. Drilling operations performed on drilling machines. Description,
principles of working and various operations on machine tools, milling machine,
shaper, grinder, boring and slotting machines.
Strength of Materials: Stresses in composite bars, relation
between elastic constants, Resilience under different types of loads, SF and BM
diagrams; stresses in beams-combined direct and bending stresses, Struts and
columns â€“ Euler's and Rankin's theories, Torsion of circular shafts.
Theory of Machines: Simple Machines â€“ Four bar chain, Slider
crank chain, double slider crank chain, Flywheel â€“ Turning moment diagrams.
Fluctuation of energy, Friction-in collar and pivots, plate clutch, conical
clutch, journal bearing. Transmission of power through flat and V-belts, Gears,
profile of gears, Governors- Watt and Hartnell governors.