DRDO RCI Apprentice Syllabus 2026: Branch-wise Topics
Many candidates search for the DRDO RCI Apprentice syllabus expecting a topic list for a written test. The official advertisement from Research Centre Imarat (RCI), Hyderabad, for the 195-seat apprenticeship released on 1 October 2026 does not include one. Selection is based on academic merit in your qualifying course, followed by an interview where RCI requires it, and document verification.
So there is no official syllabus to download. What you can prepare for is the interview, and that is where this page helps. Below you will find the core topics for each eligible engineering branch, diploma discipline and ITI trade, the common questions asked across categories, and a four-week revision plan. Treat the topic lists as a working checklist built from standard course content and typical apprenticeship interviews, not as an official document.
Table of Contents
Is There an Official DRDO RCI Apprentice Syllabus?
No. The notice (RCI/HRD/Apprenticeship/Advt/2027) describes three steps and none of them is a written exam. The table shows what each step actually checks.
Selection step | What is assessed | Official syllabus? |
|---|---|---|
Shortlisting | Marks in B.E./B.Tech, diploma or ITI (minimum 70% or 7.5 CGPA) | No, based on your existing score |
Interview (where required) | Understanding of core subjects, project and practical work | No, but follows your course content |
Document verification | Eligibility, marks, category, identity and medical fitness | Not applicable |
Pages that show an "exam pattern" with sections and marks for this recruitment are not based on the current notice. Check the official DRDO website and your registered email for any update to the selection method. For the full eligibility, stipend and application process, see the DRDO RCI Apprentice Recruitment 2026 overview.
Key Points to Know Before You Prepare
Your marks are already decided: Shortlisting uses the qualifying course score, so preparation now is only for the interview stage.
The interview may not happen for everyone: The notice says "where required". Prepare anyway, because being caught unready costs more than a week of revision.
Expect fundamentals, not tricks: Apprenticeship panels test whether you understand what you studied and can work safely in a lab or workshop.
Your branch decides the questions: A CSE graduate and a Welder trade apprentice face very different panels, so focus on your own row in the tables below.
RCI's work shapes the context: RCI develops avionics and related systems for missile programmes, so electronics, instrumentation, software, precision machining and quality topics are especially relevant.
Graduate Apprentice Syllabus by Discipline
Graduate apprentice seats (50) are open to 11 engineering branches. Revise the core subjects of your degree, with the "Start with" topics first because they are the most likely opening questions.
Discipline | Core topics to revise | Start with |
|---|---|---|
Electronics and Communication | Analog circuits, digital electronics, microprocessors and microcontrollers, signals and systems, communication systems, electromagnetics, control systems | Op-amps, flip-flops, 8085/8051 basics, modulation types |
Instrumentation | Transducers and sensors, measurement systems, process control, signal conditioning, PLC basics, calibration | Strain gauge, thermocouple, RTD, PID control |
Electrical and Electronics | Circuit theory, electrical machines, power electronics, power systems, measurements, control systems | Transformers, induction motor, rectifiers and inverters |
Computer Science | Programming (C, C++, Python or Java), data structures, algorithms, operating systems, DBMS, computer networks, embedded and real-time basics | Arrays, linked lists, sorting, OS scheduling, SQL queries |
Mechanical | Engineering mechanics, strength of materials, thermodynamics, manufacturing processes, machine design, metrology, CAD | Stress and strain, lathe and milling operations, tolerances |
Chemical | Fluid mechanics, heat and mass transfer, chemical reaction engineering, process control, unit operations, material balance | Distillation, heat exchangers, reactor types |
Metallurgical | Physical metallurgy, phase diagrams, heat treatment, mechanical testing, corrosion, welding metallurgy, non-destructive testing | Iron-carbon diagram, hardness tests, annealing and quenching |
Safety | Industrial safety management, fire engineering, hazard identification and risk assessment, safety in hazardous materials, accident investigation | HIRA, classes of fire, PPE selection |
Aeronautical | Aerodynamics, aircraft structures, propulsion, flight mechanics, aircraft materials | Lift and drag, Bernoulli's principle, jet engine cycle |
Aerospace | Rocket propulsion, aerodynamics, orbital and flight mechanics, guidance and navigation basics, composite materials | Thrust equation, specific impulse, solid and liquid propellants |
Civil | Building materials, surveying, structural analysis, RCC design, soil mechanics, estimation and construction management | Concrete grades, types of foundations, levelling |
Most panels begin with your final-year project and then move into two or three core subjects linked to it. If your project was in embedded systems, for example, expect questions on microcontrollers, sensors and communication protocols rather than on unrelated electives.
Technician (Diploma) Apprentice Syllabus
The 30 technician seats cover eight diploma disciplines. Diploma-level interviews are more practical: expect to explain how an instrument works, how you would test a component, or what safety steps you follow on a machine.
Diploma discipline | Core topics to revise | Practical focus |
|---|---|---|
Electronics and Communication | Electronic devices, digital electronics, communication basics, PCB design, consumer electronics | Using a multimeter, CRO and soldering |
Instrumentation | Sensors, measuring instruments, process instrumentation, calibration | Calibrating a pressure or temperature gauge |
Electrical and Electronics | DC and AC circuits, machines, wiring and earthing, basic power electronics | Testing a motor, house wiring, earthing methods |
Computer Science | Programming basics, computer hardware, networking, office tools, database basics | Assembling a PC, troubleshooting a network |
Mechanical | Workshop technology, machine drawing, thermal engineering, metrology | Using vernier calipers and micrometers, reading drawings |
Chemical | Unit operations, chemical process industries, plant utilities | Lab safety, handling chemicals, basic analysis |
Metallurgical | Metallography, heat treatment, foundry, testing of materials | Specimen preparation, hardness testing |
Safety | Industrial safety, fire prevention, first aid, safety legislation basics | Using fire extinguishers, permit-to-work systems |
Trade (ITI) Apprentice Syllabus by Trade
Trade apprentices hold the largest share of seats (115). ITI interviews usually check trade theory, tool knowledge and workshop safety. Revise your NCVT or SCVT trade theory along with these points.
ITI trade | Topics to revise | Likely practical questions |
|---|---|---|
Fitter | Hand tools, measuring instruments, filing, drilling, fits and tolerances, assembly | Least count of a vernier, types of fits |
Turner | Lathe parts and operations, cutting tools, threading, taper turning, speeds and feeds | How to set a job on a lathe, thread cutting |
Machinist | Lathe, milling and shaping machines, indexing, gear cutting, CNC basics | Milling cutter types, simple indexing |
Grinder | Grinding wheels, surface and cylindrical grinding, wheel dressing and balancing | Wheel marking system, safety before mounting a wheel |
Welder | Arc and gas welding, welding joints and positions, electrodes, defects, cutting | Electrode coding, common weld defects and causes |
Electrician | Electrical safety, wiring systems, earthing, motors and starters, transformers | Star-delta starter, testing insulation resistance |
Electronic Mechanic | Components, power supplies, amplifiers, digital ICs, soldering, test equipment | Identifying resistor values, using a CRO |
Mechanic Diesel | Diesel engine working, fuel injection system, cooling and lubrication, engine faults | Four-stroke cycle, why a diesel engine overheats |
COPA | Computer fundamentals, operating systems, MS Office, internet and email, basic programming | Excel formulas, file management, typing accuracy |
Draughtsman (Mechanical) | Engineering drawing, projections, sectional views, dimensioning, AutoCAD basics | First-angle versus third-angle projection |
Common Interview Areas for All Categories
Whatever your branch or trade, a few areas come up in almost every apprenticeship interview.
Your Project or Practical Work
Be able to explain your final-year project or main workshop job in two minutes: the problem, what you built, the tools used and what you would improve. Panels often build follow-up questions from your answer.
Workshop and Lab Safety
RCI works with sensitive equipment, so safety awareness counts. Know the basic PPE for your work, fire classes and extinguisher types, electrical safety rules and why housekeeping matters on a shop floor.
Basic Engineering Drawing and Measurement
Reading a simple drawing, understanding tolerances and using common measuring instruments are expected from most mechanical, electrical and electronics candidates.
About DRDO and RCI
Know what DRDO does, where RCI is located and the broad nature of its work in missile avionics. You do not need classified details; a clear, basic awareness shows genuine interest.
Why You Want This Apprenticeship
Prepare a short, honest answer that links your branch or trade to what you hope to learn at a defence research lab.
How This Preparation Helps in Later Exams
The core topics above overlap heavily with technical recruitment exams you may take during or after the apprenticeship. Studying them properly now saves time later.
Area | Apprentice interview | Later technical exams | How to plan |
|---|---|---|---|
Core branch subjects | Concept questions | Bulk of technical paper in DRDO CEPTAM, SSC JE, PSU and ISRO exams | Make short notes once and reuse them |
Trade theory (ITI) | Tool and process questions | Technician and trade-level posts in defence labs and PSUs | Practise objective questions trade-wise |
Workshop safety | Practical awareness | Appears in trade and technician papers | Revise alongside practicals |
Reasoning and general awareness | Rarely asked | Separate sections in most recruitment exams | Start lightly once the interview is done |
Four-Week Plan to Prepare for the Interview
Week 1, foundation: List the three or four core subjects from your row above. Revise definitions, basic laws and working principles, and write one page of notes per subject.
Week 2, practical recall: Go back to your lab manuals or trade practicals. For each experiment or job, note the aim, tools, procedure and safety steps.
Week 3, self-testing: Attempt short objective tests on each core subject to find weak spots quickly. You can take discipline-wise online tests on Testkart and use the topic-wise analysis to see which areas need another round of revision.
Week 4, mock interview: Practise explaining your project aloud, answer common questions with a friend or teacher, and keep your documents ready for verification.
Frequently Asked Questions
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