Bihar Technical Service Commission (BTSC) is responsible for conducting the Bihar Junior Engineer (JE) Examination to recruit eligible candidates for JE posts in Civil, Mechanical, and Electrical disciplines. To prepare effectively for the BTSC JE exam, it is important for candidates to thoroughly review the subject-wise syllabus before starting their preparation. Check the detailed BTSC JE Syllabus and Exam Pattern 2026 from the article.
BTSC JE Syllabus and Exam Pattern 2026
Understanding the BTSC JE Syllabus 2026 helps aspirants strategise their preparation effectively. Check the detailed syllabus, exam pattern, topics asked in the exam, marking scheme and other details from the article.
| Bihar BTSC JE Syllabus 2026- Summary | |
| Commission | Bihar Technical Service Commission (BTSC) |
| Post | Junior Engineer |
| Disciplines | Civil/Mechanical/Electrical |
| Mode of Exam | Computer-Based Test (CBT) / Online |
| No. of Questions | 100 |
| Total marks | 100 |
| Duration | 2 hours |
| Negative Marking | 1/4 |
| Selection Process | Online Exam- Interview- Document Verification |
Bihar BTSC JE Selection Process 2026
The selection for Junior Engineers in Civil/Mechanical/Electrical disciplines will be based on two stages:
- Written Exam (75 marks): All questions in the written competitive examination will be objective type multiple-choice questions. To be called for the next stage, candidates must clear the written test.
- Work Experience (25 marks): For claiming preference based on contractual service as a Junior Engineer or equivalent post, work experience will be considered valid if candidates work under the Government of Bihar/Central Government or any undertaking, corporation, body, authority, or autonomous body.
Bihar BTSC JE Exam Pattern 2026
The exam pattern for the BTSC Junior Engineer post is as follows:
- There are 100 questions asked from the subject disciplines
- The exam will be conducted in computer based test
- +1 mark for each correct answer.
- -0.25 marks for each wrong answer.
- The duration of the exam is 2 hours
- The BTSC JE syllabus is based on the updated curriculum for a 3-year Diploma in Civil/Mechanical/Electrical Engineering prescribed by AICTE, New Delhi.
| Sections | Questions | Marks | Duration |
| Domain Knowledge (Civil/Mechanical/Electrical) | 100 | 100 | 2 hours |
BTSC Junior Engineer Qualifying Marks
As mentioned in the BTSC JE Notification, the minimum qualifying marks for the exam is as follows-
- GEN- 40%
- SC/ST- 36.5%
- OBC- 34%
- SC/ST, women, and PWD candidates- 32%
Bihar BTSC JE Syllabus 2026
The topics to be covered from Domain Knowledge have been discussed below. Candidates planning to prepare for the BTSC JE Exam must go through these topics and start their preparation.
| Discipline | Topics |
|---|---|
| Civil Engineering | • Building Materials: properties, tests, uses, asbestos, timber, paints, varnishes • Transportation Engineering: highways, pavements, railway track geometry, traffic surveys, road safety • Environmental Engineering: water purification, sewerage, sewage treatment, drainage, solid waste, pollution • Theory of Structures: elasticity, bending moment, shear force, slope deflection, torsion • Concrete Technology: cement, aggregates, mix design, curing, quality control • RCC Design: beams, slabs, columns, staircases, water tanks • Estimating, Costing & Valuation: rate analysis, earthwork, brickwork, RCC, plastering, water tanks • Surveying: chain, compass, plane table, theodolite, levelling, contouring, tachometry • Soil Mechanics: phase diagram, Atterberg limits, permeability, compaction, bearing capacity, SPT • Hydraulics: fluid properties, Bernoulli’s theorem, flow through pipes/channels, pumps, turbines • Irrigation Engineering: crop water requirement, canals, weirs, barrages, flood control, land reclamation • Steel Design: columns, beams, trusses, plate girders |
| Electrical Engineering | • Basic Electrical: Ohm’s Law, AC/DC circuits, network theorems • Electrical Machines: transformers, DC machines, induction & synchronous machines • Power Systems: generation (thermal, hydro, nuclear, renewable), transmission, distribution, protection • Circuits & Networks: mesh/nodal analysis, resonance, transients, two-port networks • Measurements: instruments, errors, bridges, transducers • Control Systems: open/closed loop, transfer functions, stability analysis • Power Electronics: rectifiers, inverters, converters, SMPS, UPS • Utilization: drives, traction, heating, welding, illumination • Switchgear & Protection: circuit breakers, relays, schemes |
| Mechanical Engineering | • Engineering Mechanics: laws of motion, force systems, friction, centroid, inertia • Strength of Materials: stress-strain, bending moment, shear force, torsion, columns • Thermodynamics: laws, entropy, Otto/Diesel/Rankine cycles, refrigeration • Theory of Machines: mechanisms, gears, governors, cams, balancing, vibrations • Fluid Mechanics: fluid properties, Bernoulli’s theorem, pumps, turbines • Heat Transfer: conduction, convection, radiation, exchangers • IC Engines & Power Plants: IC engines, boilers, turbines, fuels • Manufacturing: casting, welding, machining, jigs, fixtures, non-traditional machining • Industrial Engineering: work/time study, plant layout, material handling, production planning • Machine Design: shafts, keys, couplings, springs, bearings, gears, brakes, clutches |
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