Access the comprehensive BTSC JE Syllabus and Exam Pattern 2026 for Civil, Mechanical, and Electrical engineering disciplines. Review subject-wise topics to streamline your exam preparation.
The Bihar Technical Service Commission (BTSC) conducts the Bihar Junior Engineer (JE) recruitment exam to select qualified candidates for various technical roles. To succeed in this competitive examination, candidates must align their study plan with the official BTSC JE Syllabus 2026. Explore our detailed breakdown of the exam structure and syllabus topics below.
BTSC JE Syllabus and Exam Pattern 2026
Gaining a deep understanding of the BTSC JE Syllabus 2026 is critical for effective exam strategy. This guide covers the complete curriculum, examination pattern, essential subjects, marking criteria, and other vital details required to excel in the upcoming assessment.
| 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 process for Junior Engineers across Civil, Mechanical, and Electrical disciplines consists of two primary 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 official exam pattern for the BTSC Junior Engineer recruitment is structured 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
According to the official BTSC JE notification, the minimum qualifying marks mandated for the examination are outlined below:
- GEN- 40%
- SC/ST- 36.5%
- OBC- 34%
- SC/ST, women, and PWD candidates- 32%
Bihar BTSC JE Syllabus 2026
The core subjects and domain-specific topics are detailed below. We recommend that all aspirants thoroughly review these sections to prioritize high-yield areas during their study sessions.
| 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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