The Bihar Technical Service Commission (BTSC) has released the syllabus for Junior Engineer (JE) posts in Civil, Mechanical, and Electrical disciplines for the 2025 recruitment. Candidates preparing for the Computer-Based Test (CBT) should focus on General Studies and domain-specific engineering topics based on the AICTE diploma curriculum.
BTSC JE Syllabus and Exam Pattern 2025
BTSC is providing a great opportunity for candidates to serve in the state government as Junior Engineers under the BTSC JE Recruitment 2025 in the Civil, Mechanical, or Electrical disciplines. The BTSC JE exam features 100 objective-type MCQs worth 100 marks, lasting 2 hours, with a negative marking of 0.25 for wrong answers. It covers General Studies (20 marks) and Engineering Discipline (80 marks), conducted online.
| Bihar BTSC JE Syllabus and Exam Pattern 2025- 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 2025
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 2025
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 2025
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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