Here at Toppersexam.com , you can practice a complete set of Mock Test Series along with a free ISRO ICRB Scientist Engineer mock test designed by our expert faculty Team.
Free Mock Test Practice
ISRO Icrb Scientist Engineer 2026 Free Mock Test Practice
Practice with exam-pattern mock tests for ISRO Icrb Scientist Engineer 2026.
ISRO Icrb Scientist Engineer 2026 Free Mock Test
1
ISRO ICRB Scientist Engineer (Electrical) Exam - Hindi95 questions • 120 mins • 100 marks
Free Test →2
ISRO ICRB Scientist Engineer (Electrical) Exam - English95 questions • 120 mins • 100 marks
Free Test →Free Important Questions
ISRO Icrb Scientist Engineer 2026 Exam Free Online Question Bank
Combo Offers
ISRO ICRB Scientist Engineer Combo Packages
We Launches Combo Offers ! with Heavy Discount and Cost Saving Prices. Combo Packages includes - Online Mock Test Series + Important Questions or MCQs + Previous Year Papers with Answer.
Combo Package
ISRO ICRB Scientist Engineer
Combo - 1 Electrical (Hindi)
1. Online Mock Test Series in Hindi = 10 Tests.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹201₹231
Combo Package
ISRO ICRB Scientist Engineer
Combo - 2 Electrical (Hindi)
1. Online Mock Test Series in Hindi = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹261₹291
Combo Package
ISRO ICRB Scientist Engineer
Combo - 3 Electrical (English)
1. Online Mock Test Series in English = 10 Tests.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English
4. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English
4. 1000 (+) GK MCQ with Answer PDF Book in English.
₹201₹231
Combo Package
ISRO ICRB Scientist Engineer
Combo - 4 Electrical (English)
1. Online Mock Test Series in English = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English
4. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English
4. 1000 (+) GK MCQ with Answer PDF Book in English.
₹261₹291
Combo Package
ISRO ICRB Scientist Engineer
Combo - 5 Civil (Hindi)
1. Online Mock Test Series in Hindi = 10 Tests.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹201₹231
Combo Package
ISRO ICRB Scientist Engineer
Combo - 6 Civil (Hindi)
1. Online Mock Test Series in Hindi = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹261₹291
Combo Package
ISRO ICRB Scientist Engineer
Combo - 7 Civil (English)
1. Online Mock Test Series in English = 10 Tests.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English
4. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English
4. 1000 (+) GK MCQ with Answer PDF Book in English.
₹201₹231
Combo Package
ISRO ICRB Scientist Engineer
Combo - 8 Civil (English)
1. Online Mock Test Series in English = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English
4. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 2000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English
4. 1000 (+) GK MCQ with Answer PDF Book in English.
₹261₹291
Combo Package
ISRO ICRB Scientist Engineer
Combo - 9 Electrical (Hindi)
1. Online Mock Test Series in Hindi = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹681₹751
Combo Package
ISRO ICRB Scientist Engineer
Combo - 10 Electrical (English)
1. Online Mock Test Series in English = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English
5. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English
5. 1000 (+) GK MCQ with Answer PDF Book in English.
₹681₹751
Combo Package
ISRO ICRB Scientist Engineer
Combo - 11 Civil (Hindi)
1. Online Mock Test Series in Hindi = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹681₹751
Combo Package
ISRO ICRB Scientist Engineer
Combo - 12 Civil (English)
1. Online Mock Test Series in English = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English
5. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in English
5. 1000 (+) GK MCQ with Answer PDF Book in English.
₹681₹751
Combo Package
ISRO ICRB Scientist Engineer
Combo - 13 Electrical (Hindi)
1. Online Mock Test Series in Hindi = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of ISRO ICRB Scientist Engineer (1000 MCQ) PDF Format in Hindi.
5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
6. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of ISRO ICRB Scientist Engineer (1000 MCQ) PDF Format in Hindi.
5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
6. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹781₹941
Combo Package
ISRO ICRB Scientist Engineer
Combo - 14 Electrical (English)
1. Online Mock Test Series in English = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of ISRO ICRB Scientist Engineer (1000 MCQ) in PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of ISRO ICRB Scientist Engineer (1000 MCQ) in PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
₹781₹941
Combo Package
ISRO ICRB Scientist Engineer
Combo - 15 Civil (Hindi)
1. Online Mock Test Series in Hindi = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of ISRO ICRB Scientist Engineer (1000 MCQ) PDF Format in Hindi.
5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
6. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of ISRO ICRB Scientist Engineer (1000 MCQ) PDF Format in Hindi.
5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
6. 1000 (+) GK MCQ with Answer PDF Book in Hindi.
₹781₹941
Combo Package
ISRO ICRB Scientist Engineer
Combo - 16 Civil (English)
1. Online Mock Test Series in English = 15 Tests.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of ISRO ICRB Scientist Engineer (1000 MCQ) in PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of ISRO ICRB Scientist Engineer (1000 MCQ) in PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
₹781₹941
Why practice here
ISRO ICRB Scientist Engineer Syllabus 2026, Exam Pattern, Exam Date 2026
Build speed, accuracy and confidence with structured practice.
ISRO ICRB Scientist Engineer Syllabus 2026, Exam Pattern, Exam Date 2026
Detail Information about ISRO ICRB has published notification 2026 for the recruitment of Scientist Engineer vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam.
ISRO ICRB Scientist Engineer Syllabus 2026 - Overview
ISRO ICRB Scientist Engineer Syllabus 2026
Part A: Electronics and Communication Engineering :
Networks, Signals, and Systems :-
Circuit analysis: Node and mesh analysis, superposition, Thevenin’s theorem, Norton’s theorem, reciprocity. Sinusoidal steady state analysis: phasors, complex power, maximum power transfer. Time and frequency domain analysis of linear circuits: RL, RC, and RLC circuits, solution of network equations using Laplace transform. Linear 2-port network parameters, wye-delta transformation.
Continuous-time signals: Fourier series and Fourier transform, sampling theorem and applications.
Discrete-time signals: DTFT, DFT, z-transform, discrete-time processing of continuous-time signals. LTI systems: definition and properties, causality, stability, impulse response, convolution, poles and zeroes, frequency response, group delay, phase delay.
Electronic Devices :-
Energy bands in intrinsic and extrinsic semiconductors, equilibrium carrier concentration, direct and indirect band-gap semiconductors.
Carrier transport: diffusion current, drift current, mobility and resistivity, generation and recombination of carriers, Poisson and continuity equations.
P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode and solar cell.
Analog Circuits :-
Diode circuits: clipping, clamping, and rectifiers.
BJT and MOSFET amplifiers: biasing, ac coupling, small signal analysis, frequency response. Current mirrors and differential amplifiers.
Op-amp circuits: Amplifiers, summers, differentiators, integrators, active filters, Schmitt trigger,s and oscillators.
Digital Circuits :-
Number representations: binary, integer and floating-point- numbers. Combinatorial circuits: Boolean algebra, minimization of functions using Boolean identities and Karnaugh map, logic gates and their static CMOS implementations, arithmetic circuits, code converters, multiplexers, decoders.
Sequential circuits: latches and flip-flops, counters, shift-registers, finite state machines, propagation delay, setup and hold time, critical path delay.
Data converters: sample and hold circuits, ADCs, and DACs.
Semiconductor memories: ROM, SRAM, DRAM.
Computer organization: Machine instructions and addressing modes, ALU, data-path, and control unit, instruction pipelining.
Control Systems :-
Basic control system components: Feedback principle; Transfer function; Block diagram representation; Signal flow graph; Transient and steady-state analysis of LTI systems; Frequency response; Routh-Hurwitz and Nyquist stability criteria; Bode and root-locus plots; Lag, lead and lag- lead compensation; State variable model and solution of state equation of LTI systems.
Communications :-
Random processes: autocorrelation and power spectral density, properties of white noise, filtering of random signals through LTI systems.
Analog communications: amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, super heterodyne receivers.
Information theory: entropy, mutual information, and channel capacity theorem.
Digital communications: PCM, DPCM, digital modulation schemes (ASK, PSK, FSK, QAM), bandwidth, inter-symbol interference, MAP, ML detection, matched filter receiver, SNR, and BER.
Fundamentals of error correction, Hamming codes, and CRC.
Electromagnetics :-
Maxwell’s equations: differential and integral forms and their interpretation, boundary conditions, wave equation, Poynting vector.
Plane waves and properties: reflection and refraction, polarization, phase and group velocity, propagation through various media, skin depth.
Transmission lines: equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart.
Rectangular and circular waveguides, light propagation in optical fibers, dipole and monopole antennas, and linear antenna arrays.
Mechanical :
Materials, Manufacturing, and Industrial Engineering :
Casting, Forming, and Joining Processes: Different types of castings, design of patterns, molds, and cores; solidification and cooling; riser and gating design. Plastic deformation and yield criteria; fundamentals of hot and cold working processes; load estimation for bulk (forging, rolling, extrusion, drawing) and sheet (shearing, deep drawing, bending) metal forming processes; principles of powder metallurgy. Principles of welding, brazing, soldering, and adhesive bonding.
Machining and Machine Tool Operations: Mechanics of machining; basic machine tools; single and multi-point cutting tools, tool geometry and materials, tool life and wear; economics of machining; principles of non-traditional machining processes; principles of work holding, jigs and fixtures; abrasive machining processes; NC/CNC machines and CNC programming.
Metrology and Inspection: Limits, fits and tolerances; linear and angular measurements; comparators; interferometry; form and finish measurement; alignment and testing methods; tolerance analysis in manufacturing and assembly; concepts of coordinate-measuring machine (CMM).
Computer Integrated Manufacturing: Basic concepts of CAD/CAM and their integration tools; additive manufacturing.
Production Planning and Control: Forecasting models, aggregate production planning, scheduling, materials requirement planning, lean manufacturing.
Inventory Control: Deterministic models; safety stock inventory control systems.
Operations Research: Linear programming, simplex method, transportation, assignment, network flow models, simple queuing models, PERT, and CPM
Engineering Materials: Structure and properties of engineering materials, phase diagrams, heat treatment, and stress-strain diagrams for engineering materials.
Applied Mechanics and Design :
Theory of Machines: Displacement, velocity, and acceleration analysis of plane mechanisms; dynamic analysis of linkages, cams, gears, and gear trains, flywheels and governors; balancing of reciprocating and rotating masses; gyroscope.
Vibrations: Free and forced vibration of single-degree-of-freedom systems, the effect of damping, vibration isolation, resonance, and critical speeds of shafts.
Machine Design: Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram; principles of the design of machine elements such as bolted, riveted, and welded joints; shafts, gears, rolling and sliding contact bearings, brakes, and clutches, springs.
Engineering Mechanics: Free-body diagrams and equilibrium; friction and its applications including rolling friction, belt-pulley, brakes, clutches, screw jack, wedge, vehicles, etc.; trusses and frames; virtual work; kinematics and dynamics of rigid bodies in plane motion; impulse and momentum (linear and angular) and energy formulations; Lagrange’s equation.
Mechanics of Materials: Stress and strain, elastic constants, Poisson’s ratio; Mohr’s circle for plane stress and plane strain; thin cylinders; shear force and bending moment diagrams; bending and shear stresses; the concept of shear center; deflection of beams; torsion of circular shafts; Euler’s theory of columns; energy methods; thermal stresses; strain gauges and rosettes; testing of materials with the universal testing machine; testing of hardness and impact strength.
Fluid Mechanics and Thermal Sciences :
Thermodynamics: Thermodynamic systems and processes; properties of pure substances, the behavior of ideal and real gases; zeroth and first laws of thermodynamics, calculation of work and heat in various processes; second law of thermodynamics; thermodynamic property charts and tables, availability and irreversibility; thermodynamic relations.
Applications: Power Engineering: Air and gas compressors; vapor and gas power cycles, concepts of regeneration and reheat. I.C. Engines: Air-standard Otto, Diesel, and dual cycles. Refrigeration and air-conditioning: Vapor and gas refrigeration and heat pump cycles; properties of moist air, psychrometric chart, basic psychrometric processes. Turbomachinery: Impulse and reaction principles, velocity diagrams, Pelton-wheel, Francis and Kaplan turbines; steam and gas turbines.
Fluid Mechanics: Fluid properties; fluid statics, forces on submerged bodies, stability of floating bodies; control-volume analysis of mass, momentum, and energy; fluid acceleration; differential equations of continuity and momentum; Bernoulli’s equation; dimensional analysis; the viscous flow of incompressible fluids, boundary layer, elementary turbulent flow, flow through pipes, head losses in pipes, bends, and fittings; basics of compressible fluid flow.
Heat-Transfer: Modes of heat transfer; one-dimensional heat conduction, resistance concept and electrical analogy, heat transfer through fins; unsteady heat conduction, lumped parameter system, Heisler’s charts; thermal boundary layer, dimensionless parameters in free and forced convective heat transfer, heat transfer correlations for flow over flat plates and through pipes, the effect of turbulence; heat exchanger performance, LMTD and NTU methods; radiative heat transfer, Stefan- Boltzmann law, Wien’s displacement law, black and grey surfaces, view factors, radiation network analysis
Computer Science :
Programming and Data Structures :
Programming in C
Recursion
Arrays, stacks, queues, linked lists, trees, binary search trees, binary heaps, graphs.
Algorithms :
Searching, sorting, and hashing.
Asymptotic worst-case time and space complexity.
Algorithm design techniques: greedy, dynamic programming, and divide-and-conquer.
Graph traversals, minimum spanning trees, shortest paths
Theory of Computation :
Regular expressions and finite automata.
Context-free grammars and push-down automata.
Regular and context-free languages, the pumping lemma.
Turing machines and undecidability.
Compiler Design :
Intermediate code generation, Local optimization,
Data flow analyses: constant propagation, liveness analysis, common subexpression elimination, Lexical analysis, parsing, syntax-directed translation, Runtime environments
Operating System :
concurrency and synchronization.
Deadlock.
CPU and I/O scheduling.
Memory management and virtual memory.
File systems, System calls, processes, threads, inter-process communication,
Databases :
ER-model.
Relational model: relational algebra, tuple calculus, SQL. Integrity constraints, normal forms.
File organization, indexing (e.g., B and B+ trees).
Transactions and concurrency control.
Computer Networks :
Concept of layering: OSI and TCP/IP Protocol Stacks; Basics of packet, circuit and virtual circuit- switching;
Data link layer: framing, error detection, Medium Access Control, Ethernet bridging;
Routing protocols: shortest path, flooding, distance vector and link state routing; Fragmentation and IP addressing, IPv4, CIDR notation, Basics of IP support protocols (ARP, DHCP, ICMP), Network Address Translation (NAT),
Transport layer: flow control and congestion control, UDP, TCP, sockets; Application layer protocols: DNS, SMTP, HTTP, FTP, Email
Digital Logic :
Boolean algebra.
Combinational and sequential circuits.
Minimization.
Number representations and computer arithmetic (fixed and floating point).
Computer Organization and Architecture :
Machine instructions and addressing modes.
ALU, data-path, and control unit.
Instruction pipelining, pipeline hazards.
Memory hierarchy: cache, main memory, and secondary storage; I/O interface (interrupt and DMA mode).
Part B: Aptitude/ Reasoning :
1. Reasoning
2. Logical Reasoning
3. Diagrammatic Reasoning
4. Abstract Reasoning and Deductive Reasoning
ISRO ICRB Scientist Engineer Exam Pattern 2026
Duration : 120 Minutes
Exam Date : Notified Soon
Starting Date of Application Form : 27th August 2026
Last Date of Application Form : 16th September 2026
Total Post : 175
ISRO ICRB Scientist Engineer Syllabus 2026 - Overview
| Organization Name | ISRO Centralised Recruitment Board(ICRB) |
| Post Name | Scientist/Engineer ‘SC’ (Electronics, Mechanical & Computer Science) |
| Total Vacancies | 175 |
| Application Mode | Online |
| Category | Syllabus and Exam Pattern |
| Pay Scale | Rs.56,100/month (Level 10 of Pay Matrix) |
| Job Location | All India |
| Selection Process | Written Test followed by Interview |
| Official Website | https://www.isro.gov.in |
ISRO ICRB Scientist Engineer Syllabus 2026
Part A: Electronics and Communication Engineering :
Networks, Signals, and Systems :-
Circuit analysis: Node and mesh analysis, superposition, Thevenin’s theorem, Norton’s theorem, reciprocity. Sinusoidal steady state analysis: phasors, complex power, maximum power transfer. Time and frequency domain analysis of linear circuits: RL, RC, and RLC circuits, solution of network equations using Laplace transform. Linear 2-port network parameters, wye-delta transformation.
Continuous-time signals: Fourier series and Fourier transform, sampling theorem and applications.
Discrete-time signals: DTFT, DFT, z-transform, discrete-time processing of continuous-time signals. LTI systems: definition and properties, causality, stability, impulse response, convolution, poles and zeroes, frequency response, group delay, phase delay.
Electronic Devices :-
Energy bands in intrinsic and extrinsic semiconductors, equilibrium carrier concentration, direct and indirect band-gap semiconductors.
Carrier transport: diffusion current, drift current, mobility and resistivity, generation and recombination of carriers, Poisson and continuity equations.
P-N junction, Zener diode, BJT, MOS capacitor, MOSFET, LED, photo diode and solar cell.
Analog Circuits :-
Diode circuits: clipping, clamping, and rectifiers.
BJT and MOSFET amplifiers: biasing, ac coupling, small signal analysis, frequency response. Current mirrors and differential amplifiers.
Op-amp circuits: Amplifiers, summers, differentiators, integrators, active filters, Schmitt trigger,s and oscillators.
Digital Circuits :-
Number representations: binary, integer and floating-point- numbers. Combinatorial circuits: Boolean algebra, minimization of functions using Boolean identities and Karnaugh map, logic gates and their static CMOS implementations, arithmetic circuits, code converters, multiplexers, decoders.
Sequential circuits: latches and flip-flops, counters, shift-registers, finite state machines, propagation delay, setup and hold time, critical path delay.
Data converters: sample and hold circuits, ADCs, and DACs.
Semiconductor memories: ROM, SRAM, DRAM.
Computer organization: Machine instructions and addressing modes, ALU, data-path, and control unit, instruction pipelining.
Control Systems :-
Basic control system components: Feedback principle; Transfer function; Block diagram representation; Signal flow graph; Transient and steady-state analysis of LTI systems; Frequency response; Routh-Hurwitz and Nyquist stability criteria; Bode and root-locus plots; Lag, lead and lag- lead compensation; State variable model and solution of state equation of LTI systems.
Communications :-
Random processes: autocorrelation and power spectral density, properties of white noise, filtering of random signals through LTI systems.
Analog communications: amplitude modulation and demodulation, angle modulation and demodulation, spectra of AM and FM, super heterodyne receivers.
Information theory: entropy, mutual information, and channel capacity theorem.
Digital communications: PCM, DPCM, digital modulation schemes (ASK, PSK, FSK, QAM), bandwidth, inter-symbol interference, MAP, ML detection, matched filter receiver, SNR, and BER.
Fundamentals of error correction, Hamming codes, and CRC.
Electromagnetics :-
Maxwell’s equations: differential and integral forms and their interpretation, boundary conditions, wave equation, Poynting vector.
Plane waves and properties: reflection and refraction, polarization, phase and group velocity, propagation through various media, skin depth.
Transmission lines: equations, characteristic impedance, impedance matching, impedance transformation, S-parameters, Smith chart.
Rectangular and circular waveguides, light propagation in optical fibers, dipole and monopole antennas, and linear antenna arrays.
Mechanical :
Materials, Manufacturing, and Industrial Engineering :
Casting, Forming, and Joining Processes: Different types of castings, design of patterns, molds, and cores; solidification and cooling; riser and gating design. Plastic deformation and yield criteria; fundamentals of hot and cold working processes; load estimation for bulk (forging, rolling, extrusion, drawing) and sheet (shearing, deep drawing, bending) metal forming processes; principles of powder metallurgy. Principles of welding, brazing, soldering, and adhesive bonding.
Machining and Machine Tool Operations: Mechanics of machining; basic machine tools; single and multi-point cutting tools, tool geometry and materials, tool life and wear; economics of machining; principles of non-traditional machining processes; principles of work holding, jigs and fixtures; abrasive machining processes; NC/CNC machines and CNC programming.
Metrology and Inspection: Limits, fits and tolerances; linear and angular measurements; comparators; interferometry; form and finish measurement; alignment and testing methods; tolerance analysis in manufacturing and assembly; concepts of coordinate-measuring machine (CMM).
Computer Integrated Manufacturing: Basic concepts of CAD/CAM and their integration tools; additive manufacturing.
Production Planning and Control: Forecasting models, aggregate production planning, scheduling, materials requirement planning, lean manufacturing.
Inventory Control: Deterministic models; safety stock inventory control systems.
Operations Research: Linear programming, simplex method, transportation, assignment, network flow models, simple queuing models, PERT, and CPM
Engineering Materials: Structure and properties of engineering materials, phase diagrams, heat treatment, and stress-strain diagrams for engineering materials.
Applied Mechanics and Design :
Theory of Machines: Displacement, velocity, and acceleration analysis of plane mechanisms; dynamic analysis of linkages, cams, gears, and gear trains, flywheels and governors; balancing of reciprocating and rotating masses; gyroscope.
Vibrations: Free and forced vibration of single-degree-of-freedom systems, the effect of damping, vibration isolation, resonance, and critical speeds of shafts.
Machine Design: Design for static and dynamic loading; failure theories; fatigue strength and the S-N diagram; principles of the design of machine elements such as bolted, riveted, and welded joints; shafts, gears, rolling and sliding contact bearings, brakes, and clutches, springs.
Engineering Mechanics: Free-body diagrams and equilibrium; friction and its applications including rolling friction, belt-pulley, brakes, clutches, screw jack, wedge, vehicles, etc.; trusses and frames; virtual work; kinematics and dynamics of rigid bodies in plane motion; impulse and momentum (linear and angular) and energy formulations; Lagrange’s equation.
Mechanics of Materials: Stress and strain, elastic constants, Poisson’s ratio; Mohr’s circle for plane stress and plane strain; thin cylinders; shear force and bending moment diagrams; bending and shear stresses; the concept of shear center; deflection of beams; torsion of circular shafts; Euler’s theory of columns; energy methods; thermal stresses; strain gauges and rosettes; testing of materials with the universal testing machine; testing of hardness and impact strength.
Fluid Mechanics and Thermal Sciences :
Thermodynamics: Thermodynamic systems and processes; properties of pure substances, the behavior of ideal and real gases; zeroth and first laws of thermodynamics, calculation of work and heat in various processes; second law of thermodynamics; thermodynamic property charts and tables, availability and irreversibility; thermodynamic relations.
Applications: Power Engineering: Air and gas compressors; vapor and gas power cycles, concepts of regeneration and reheat. I.C. Engines: Air-standard Otto, Diesel, and dual cycles. Refrigeration and air-conditioning: Vapor and gas refrigeration and heat pump cycles; properties of moist air, psychrometric chart, basic psychrometric processes. Turbomachinery: Impulse and reaction principles, velocity diagrams, Pelton-wheel, Francis and Kaplan turbines; steam and gas turbines.
Fluid Mechanics: Fluid properties; fluid statics, forces on submerged bodies, stability of floating bodies; control-volume analysis of mass, momentum, and energy; fluid acceleration; differential equations of continuity and momentum; Bernoulli’s equation; dimensional analysis; the viscous flow of incompressible fluids, boundary layer, elementary turbulent flow, flow through pipes, head losses in pipes, bends, and fittings; basics of compressible fluid flow.
Heat-Transfer: Modes of heat transfer; one-dimensional heat conduction, resistance concept and electrical analogy, heat transfer through fins; unsteady heat conduction, lumped parameter system, Heisler’s charts; thermal boundary layer, dimensionless parameters in free and forced convective heat transfer, heat transfer correlations for flow over flat plates and through pipes, the effect of turbulence; heat exchanger performance, LMTD and NTU methods; radiative heat transfer, Stefan- Boltzmann law, Wien’s displacement law, black and grey surfaces, view factors, radiation network analysis
Computer Science :
Programming and Data Structures :
Programming in C
Recursion
Arrays, stacks, queues, linked lists, trees, binary search trees, binary heaps, graphs.
Algorithms :
Searching, sorting, and hashing.
Asymptotic worst-case time and space complexity.
Algorithm design techniques: greedy, dynamic programming, and divide-and-conquer.
Graph traversals, minimum spanning trees, shortest paths
Theory of Computation :
Regular expressions and finite automata.
Context-free grammars and push-down automata.
Regular and context-free languages, the pumping lemma.
Turing machines and undecidability.
Compiler Design :
Intermediate code generation, Local optimization,
Data flow analyses: constant propagation, liveness analysis, common subexpression elimination, Lexical analysis, parsing, syntax-directed translation, Runtime environments
Operating System :
concurrency and synchronization.
Deadlock.
CPU and I/O scheduling.
Memory management and virtual memory.
File systems, System calls, processes, threads, inter-process communication,
Databases :
ER-model.
Relational model: relational algebra, tuple calculus, SQL. Integrity constraints, normal forms.
File organization, indexing (e.g., B and B+ trees).
Transactions and concurrency control.
Computer Networks :
Concept of layering: OSI and TCP/IP Protocol Stacks; Basics of packet, circuit and virtual circuit- switching;
Data link layer: framing, error detection, Medium Access Control, Ethernet bridging;
Routing protocols: shortest path, flooding, distance vector and link state routing; Fragmentation and IP addressing, IPv4, CIDR notation, Basics of IP support protocols (ARP, DHCP, ICMP), Network Address Translation (NAT),
Transport layer: flow control and congestion control, UDP, TCP, sockets; Application layer protocols: DNS, SMTP, HTTP, FTP, Email
Digital Logic :
Boolean algebra.
Combinational and sequential circuits.
Minimization.
Number representations and computer arithmetic (fixed and floating point).
Computer Organization and Architecture :
Machine instructions and addressing modes.
ALU, data-path, and control unit.
Instruction pipelining, pipeline hazards.
Memory hierarchy: cache, main memory, and secondary storage; I/O interface (interrupt and DMA mode).
Part B: Aptitude/ Reasoning :
1. Reasoning
2. Logical Reasoning
3. Diagrammatic Reasoning
4. Abstract Reasoning and Deductive Reasoning
ISRO ICRB Scientist Engineer Exam Pattern 2026
Duration : 120 Minutes
| Part | Subject | No.of Question | Marks | Negative Marking | Duration |
| Part A | Mechanical Engineering | 80 | 80 | 0.33 | 90 Minutes |
| Part B | Aptitude/Ability | 15 | 20 | No Negative Marking | 30 Minutes |
| Total | 95 | 100 | 120 Minutes |
Exam Date : Notified Soon
Starting Date of Application Form : 27th August 2026
Last Date of Application Form : 16th September 2026
Total Post : 175
FAQs
ISRO Icrb Scientist Engineer 2026 Exam Syllabus Frequently Asked Questions (FAQ's)
Here at Toppersexam.com , you can practice a complete set of Imporatnt Questions (MCQ) along with a Free ISRO ICRB Scientist Engineer MCQ designed by our expert faculty.
In this article Page, we have provided the required syllabus of the ISRO ICRB Scientist Engineer exam.
Being familiar with ISRO ICRB Scientist Engineer Exam Pattern will help you understand the types of questions asked, difficulty level of the exam and important topics that require your keen attention. It will also acquaint you with the marking scheme and time allotted to each Topics.
ISRO ICRB Scientist Engineer syllabus pdf download option is available here which will help you to get the PDF saved in your device that you can access anytime. It consists of a complete syllabus of ISRO ICRB Scientist Engineer which you can refer to while preparing for the exams.
ISRO ICRB Scientist Engineer exam is not tough but it depends on your preparation. The candidates find the Subject not challenging. The dedicated preparation in the right direction will undoubtedly take you towards the goal.
The candidates must be well versed and acquainted with the syllabus and the exam pattern. Select the areas where improvement is required and schedule your preparation accordingly. To ace this exam, the applicants ought to maintain speed with high accuracy. Practicing previous years question papers will help you understand the exam pattern and the level of difficulty of the exam. You need to hone your strengths and improve upon your weaknesses. Toppersexam.com will aid you through the preparation and drive you to success. At Toppersexam.com, you can practice a complete set of test series along with a free ISRO ICRB Scientist Engineer mock test designed by our expert faculty.
The syllabus of ISRO ICRB Scientist Engineer Exam includes all topics that are important for the exam and are necessary for thorough preparation. Toppersexam provides a complete and updated syllabus with a detailed topic-wise breakdown.
You can download the complete ISRO ICRB Scientist Engineer Exam syllabus PDF from toppersexam.com. The PDF is available free and includes a detailed list of topics, section-wise subjects, and weightage for better exam preparation.
Yes, ISRO ICRB Scientist Engineer Exam has a topic-wise syllabus that includes all relevant subtopics. Toppersexam provides the detailed breakdown, helping candidates focus on high-weightage areas and avoid missing important sections.
Toppersexam ensures that the ISRO ICRB Scientist Engineer syllabus is updated for 2026. The latest syllabus reflects current exam trends, question patterns, and updated topics as per official notifications.
The ISRO ICRB Scientist Engineer Exam pattern includes details like the number of sections, total questions, marks distribution, and exam duration. Toppersexam provides a comprehensive guide on exam format, marking scheme, and question types.
Yes, the majority of questions in ISRO ICRB Scientist Engineer Exam are MCQs. Toppersexam provides practice MCQs with answers to help candidates understand the question pattern and improve accuracy.
Yes, questions are divided section-wise. Toppersexam provides a clear guide on how many questions are asked per section and their difficulty level for effective preparation.
Yes, Toppersexam offers online mock tests that strictly follow the ISRO ICRB Scientist Engineer Exam pattern. These mocks help candidates practice time management and get real-exam experience.
Yes, exam patterns can change over time. Toppersexam provides updated information on the latest exam pattern, question types, and section-wise changes.
Understanding the exam pattern is crucial for time management, question prioritization, and strategy planning. Toppersexam guides candidates on how to use the pattern effectively to maximize scores.
Start by dividing the syllabus into sections and prioritizing high-weightage topics. Toppersexam provides a preparation strategy, along with topic-wise tips and sample questions to make syllabus analysis easier.
Yes, focusing on high-weightage topics improves efficiency. Toppersexam highlights important topics, helping candidates prioritize sections for better performance.
Toppersexam provides a free downloadable PDF that includes both the syllabus and detailed exam pattern. This helps candidates study offline and revise efficiently.