SSC JE Civil Engineering Notes: Complete Topic-wise Study Material
The SSC Junior Engineer (JE) examination recruits engineers for the Civil, Mechanical, Electrical and Quantity Surveying and Contracts branches in central government departments such as CPWD, MES, the Central Water Commission, the Border Roads Organisation, the Farakka Barrage Project and others. In the Paper I (CBT) of the JE exam, the candidates have to attempt General Intelligence and Reasoning, General Awareness and the technical engineering section of their branch. In the Civil branch, the engineering section carries the largest share of marks, so strong technical preparation decides the selection.
These SSC JE Civil Engineering notes give the map of the whole technical syllabus. Each part lists the topics, the formulas and the facts that are asked often, so that you can plan your preparation and revise quickly.
What You Get in These Civil Engineering Notes
- The complete topic list of the SSC JE Civil syllabus in a logical order.
- The key formulas and values of the important chapters.
- The types of questions and the way to solve them in less time.
- A preparation strategy for the technical part, and links to Reasoning, General Awareness and Quantitative Aptitude for the common sections.
Exam Pattern of the SSC JE Exam
| Point | Detail |
|---|---|
| Stages | Paper I (computer-based) and Paper II (a descriptive or conventional type engineering paper in the pattern notified), then document verification |
| Paper I sections | General Intelligence and Reasoning, General Awareness and General Engineering (civil and structural, electrical or mechanical, as per the branch) |
| Questions | Objective type with negative marking |
| Qualification | Diploma or degree in engineering of the concerned branch |
The marks and the pattern are given in each year's notification, so check the latest SSC notice before you start the preparation.
Building Materials
- Bricks: the standard size is 19 x 9 x 9 cm (190 x 90 x 90 mm); with mortar, the nominal size is 20 x 10 x 10 cm. A first-class brick has a compressive strength of about 10.5 N/mm squared and water absorption of up to 20 percent.
- Cement: Ordinary Portland Cement (OPC) grades 33, 43 and 53; the initial setting time is not less than 30 minutes and the final setting time not more than 600 minutes (10 hours). The main compounds are C3S, C2S, C3A and C4AF. Gypsum is added to control the setting.
- Lime, sand and aggregates: fineness modulus of sand; coarse aggregates (20 mm) and fine aggregates; the bulking of sand; the grading of aggregates.
- Timber: hardwood and softwood, seasoning and defects.
- Steel: mild steel and high-yield strength deformed (HYSD) bars such as Fe 415, Fe 500; the stress-strain curve of the steel bar.
- Concrete: the ingredients are cement, water, fine and coarse aggregates; M20 means a characteristic compressive strength of 20 N/mm squared at 28 days (150 mm cube); the water-cement ratio decides the strength; the slump test measures the workability; curing is done for at least 7 days (10 days for some cements).
Estimating, Costing and Valuation
- Estimate is the calculation of the quantity and the cost of the work before it is done. The types are the preliminary (approximate) estimate, the detailed estimate and the revised estimate.
- Methods of the detailed estimate: the long wall and short wall method and the centre line method.
- Units of measurement: earthwork in cubic metre, brickwork in cubic metre, plastering and painting in square metre and the reinforcement in kilogram or tonne.
- Specifications describe the quality of materials and workmanship. The rate analysis gives the cost of a unit of work.
- Contracts and tenders: the types of contracts (item rate, lump sum, percentage rate, cost plus), earnest money deposit (EMD), security deposit and the Bill of Quantities (BOQ).
- Valuation: the value of a property; depreciation, sinking fund and the scrap value.
Surveying
| Topic | Key facts |
|---|---|
| Chain surveying | The simplest method; the Gunter's chain is 66 feet (20.1 m); the metric chain is 20 m or 30 m; the offsets and the ranging of lines |
| Compass surveying | Uses the bearing of the lines (the whole circle bearing and the quadrantal bearing); local attraction and magnetic declination |
| Levelling | The dumpy level and the auto level; the back sight, the fore sight and the intermediate sight; the rise and fall method and the height of instrument method |
| Theodolite | Measures the horizontal and vertical angles; the transit theodolite |
| Plane table surveying | Surveying and plotting at the same time |
| Contouring | Contour lines join the points of the same elevation; the contour interval |
| Modern methods | Total station, GPS and remote sensing |
Soil Mechanics and Foundation Engineering
- Properties of soil: void ratio (e) = volume of voids / volume of solids; porosity (n) = volume of voids / total volume; degree of saturation; water content (w) = weight of water / weight of solids; specific gravity of soil particles is about 2.65.
- Classification: the particle size (gravel, sand, silt and clay) and the Indian Standard classification; the liquid limit, plastic limit and shrinkage limit (Atterberg limits); the plasticity index = liquid limit - plastic limit.
- Permeability (Darcy's law: velocity = k x i), compaction (the Proctor test, the optimum moisture content and the maximum dry density) and consolidation (Terzaghi's theory).
- Shear strength (Mohr-Coulomb equation: shear strength = c + sigma x tan phi) and the tests: the direct shear test, the triaxial test and the unconfined compression test.
- Foundations: shallow (isolated footing, combined footing, strip and raft foundation) and deep (pile and well foundations); the bearing capacity (Terzaghi's equation) and the settlement.
Hydraulics, Fluid Mechanics and Irrigation
- Fluid properties: density, specific weight, viscosity, surface tension and capillarity. Pressure at a depth h in a liquid = density x g x h.
- Bernoulli's equation: pressure head + velocity head + datum head is constant for the ideal flow. It is used in the venturimeter, the orifice meter and the pitot tube.
- Flow in pipes: the Darcy-Weisbach equation and the losses; the Reynolds number decides whether the flow is laminar (below 2000) or turbulent (above 4000).
- Open channel flow: Chezy's and Manning's formulas; the most economical section of a rectangular channel has the depth equal to half the width; the hydraulic jump.
- Hydrology: the rainfall, the runoff and the hydrograph. Irrigation: the types of irrigation (canal, tube well, drip, sprinkler), the duty and delta of the crops, the kharif and rabi crops and the types of dams and weirs.
Transportation Engineering
- Highway engineering: the classification of roads (national highways, state highways, major district roads and village roads), the Nagpur Road Plan and the cross-section elements (the camber, the width, the superelevation and the sight distance).
- Pavements: flexible pavement (bituminous) and rigid pavement (cement concrete); the CBR test for the subgrade strength; the aggregates tests (the impact value, the crushing value and the abrasion value) and the bitumen tests (penetration and softening point).
- Railway engineering: the gauges (broad 1.676 m, metre 1 m, narrow 0.762 m and 0.610 m), the components of the track (rails, sleepers, ballast and fastenings) and the points and crossings.
- Airports and harbours: the runway orientation by the wind rose and the types of ports.
Environmental Engineering
- Water supply: the sources, the quantity of water (about 135 litres per capita per day for the domestic use in cities) and the treatment: screening, sedimentation, coagulation (alum), filtration and disinfection (chlorination).
- Water quality: pH, hardness, turbidity, the dissolved oxygen (DO), BOD and COD.
- Sewage and waste water: the sewage treatment (primary, secondary and tertiary), the activated sludge process, the trickling filter and the septic tank.
- Solid waste management and the air and noise pollution control.
Structural Engineering: Theory of Structures, RCC and Steel
- Strength of materials: stress = force / area; strain = change in length / original length; Hooke's law (stress is proportional to strain within the elastic limit); Young's modulus E = stress / strain; Poisson's ratio; the relation between E, the shear modulus G and the bulk modulus K.
- Bending moment and shear force diagrams for the simply supported and cantilever beams; for a simply supported beam with a central point load W, the maximum bending moment = WL / 4, and for a uniformly distributed load w per unit length it is wL squared / 8; for a cantilever with a point load at the free end it is WL.
- Bending equation: M / I = sigma / y = E / R. Torsion of shafts and the columns: the Euler's buckling load and the slenderness ratio.
- Analysis of structures: the determinate and indeterminate structures, the trusses, the moment distribution method and the influence lines.
- RCC design: the working stress method and the limit state method (IS 456); the reinforced beams, slabs, columns and footings; the minimum cover; the types of slabs (one-way when the ratio of the long span to the short span is more than 2, and two-way when it is 2 or less).
- Steel structures: the riveted, bolted and welded connections, the tension and compression members, the beams and the plate girders (IS 800).
How to Prepare SSC JE Civil Engineering
- Divide the syllabus in the order of the weight of the questions: structural engineering (RCC, steel, strength of materials), the building materials, the estimating, the soil mechanics, the hydraulics, the transportation and the environmental engineering.
- Make a formula and fact sheet for every subject and revise it every week.
- Solve the numerical problems of strength of materials, hydraulics and soil mechanics daily with a timer.
- Practise the previous year JE papers and note the topics that are repeated.
- Prepare the reasoning and the general awareness parts also, because they often decide the cut-off.
- In the last month, take full-length mock tests and revise the formula sheets.
Tips for the Exam
- Attempt the technical section first, as it gives the highest marks.
- Remember the standard values (the brick size, the cement setting time, the gauges and the Reynolds number limits).
- Check the units in the numerical problems before marking the answer.
Practice and Next Steps
Practise with the SSC practice papers, the previous year papers and the free SSC quizzes. Prepare the common sections with the Reasoning notes, General Awareness notes and General Science notes. If you want to know the other JE branches, see Mechanical Engineering and Electrical Engineering.
Explore Other SSC Subjects
SSC exams test many subjects, so a good study plan connects them. Move to the next subject once you finish this one:
- Quantitative Aptitude Notes: Maths formulas, tricks and solved examples
- Reasoning Notes: Verbal and non-verbal reasoning topics
- English Notes: Grammar, vocabulary and comprehension
- General Awareness Notes: History, polity, geography, economy and static GK
- Computer Knowledge Notes: Computer basics, MS Office, internet and security
- General Science Notes: Physics, chemistry and biology for SSC
- Statistics Notes: Statistics for CGL Tier 2 (JSO)
- Finance and Economics Notes: Finance, accounts and economics for CGL Tier 2 (AAO)
- General Hindi Notes: Hindi grammar and vocabulary
- Current Affairs Notes: Latest national and international events
- Indian History Notes: Ancient, medieval and modern India
- Indian Geography Notes: Physical, economic and world geography
- Indian Polity Notes: Constitution, parliament and governance
- Indian Economy Notes: Economy, budget, banking and schemes
- Mechanical Engineering (SSC JE) Notes: Mechanical engineering topics for SSC JE
- Electrical Engineering (SSC JE) Notes: Electrical engineering topics for SSC JE
- Stenography Notes: Shorthand, typing and transcription for Stenographer
You can also practise with the SSC practice papers, solve the previous year papers and attempt the free SSC quizzes.
Frequently Asked Questions About SSC Civil Engineering (SSC JE) Notes
Which departments recruit civil engineers through the SSC JE exam?
The SSC JE exam recruits civil engineers for departments such as CPWD, MES, the Central Water Commission, the Border Roads Organisation and the Farakka Barrage Project.
What is the educational qualification for SSC JE Civil?
Usually a diploma or a degree in civil engineering from a recognised institute is required. Check the latest notification for the exact qualification and the age limit.
What are the main subjects of SSC JE Civil Engineering?
The main subjects are building materials, estimating and costing, surveying, soil mechanics, hydraulics and irrigation, transportation engineering, environmental engineering and structural engineering (including RCC and steel design).
What is the standard size of a brick in India?
The standard size of a modular brick is 19 x 9 x 9 cm, and with the mortar thickness it is 20 x 10 x 10 cm.
What does M20 grade of concrete mean?
M20 is a concrete grade that has a characteristic compressive strength of 20 N/mm squared at 28 days.
What is the maximum bending moment of a simply supported beam with a central point load?
It is WL / 4, where W is the load and L is the span of the beam.
Is the SSC JE exam only for civil engineers?
No. The exam is also conducted for the mechanical and electrical branches, and there are posts for quantity surveying and contracts.
How should I prepare for the SSC JE Civil exam?
Study each technical subject from the standard notes, make formula sheets, solve the previous year papers, practise numerical problems and also prepare reasoning and general awareness.
Which topics are the most important in SSC JE Civil?
Structural engineering, RCC and steel design, soil mechanics, hydraulics, surveying, building materials and estimation and costing give many questions, so prepare them first.
Is there negative marking in SSC JE?
Yes. Paper I has a negative marking of 0.25 mark for every wrong answer, so avoid blind guessing.
What is the difference between Paper I and Paper II of SSC JE?
Paper I is a computer-based objective test with Reasoning, General Awareness and General Engineering. Paper II is conducted as per the latest SSC notification, so always check it.
How many hours should I study for SSC JE Civil?
Give 4 to 5 hours daily for 3 to 4 months. Spend about 3 hours on Civil Engineering and 1 to 2 hours on Reasoning and General Awareness. You can also read the Mechanical and Electrical notes to compare the branches.