GATE IN Syllabus 2025: Instrumentation Engineering

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Explore the comprehensive GATE Instrumentation Engineering (IN) syllabus for 2025 to kickstart your exam preparation and achieve success.

instrumentation engineering in gate papers

GATE IN Syllabus 2025 – GATE 2025 exam will be conduct by IIT, Roorkee on dates 1, 2 and 8, 9 February, 2025. Here we have provided latest Instrumentation Engineering syllabus & paper pattern for GATE 2025 aspirants.

All candidates with Instrumentation Engineering subject are advised to download this latest syllabus before starting their GATE 2025 exam preparation.

GATE 2025 Highlights

GATE 2025 Conducting BodyIIT, Roorkee
GATE 2025 Exam Date 1, 2, 8, 9 February, 2025
GATE 2025 Total Subjects 30
GATE 2025 Exam Mode ONLINE Computer Based Test (CBT)
GATE 2025 Exam Duration 3 hours (180 minutes)
GATE 2025 Total Questions 10 (GA) + 55 (subject)= 65
GATE 2025 Total Marks 100
GATE 2025 Question Type MCQ, MSQ, NAT

GATE Instrumentation Engineering Paper Pattern 2025

Paper SectionsMarks Distribution
Subject Questions72% of the total marks.
Engineering Mathemetics13% of the total marks.
General Aptitude15% of the total marks.

GATE Instrumentation Engineering Syllabus 2025 PDF

General Aptitude Syllabus (Common to all papers) [pdf] Download
GATE Syllabus for Instrumentation Engineering (IN) [pdf] Download

GATE Instrumentation Engineering Syllabus Details  2025

Name Topics
Engineering Mathematics
  • Linear Algebra
  • Calculus
  • Differential Equations
  • Analysis of Complex Variables
  • Probability and Statistics
  • Numerical Methods
Electricity and Magnetism Coulomb’s Law, Electric Field Intensity, Electric Flux Density, Gauss’s Law, Divergence, Electric field and potential due to point, line, plane, and spherical charge distributions, Effect of the dielectric medium, Capacitance of simple configurations, Biot‐Savart’s law, Ampere’s law, Curl, Faraday’s law, Lorentz force, Inductance, Magnetomotive force, Reluctance, Magnetic circuits, Self and Mutual inductance of simple configurations.
Electrical Circuits and Machines Voltage and current sources: independent, dependent, ideal and practical; v-i relationships of resistor, inductor, mutual inductance and capacitor; transient analysis of RLC circuits with dc excitation. Kirchoff’s laws, mesh and nodal analysis, superposition, Thevenin, Norton, maximum power transfer and reciprocity theorems. Peak-, average- and rms values of ac quantities; apparent-, active- and reactive powers; phasor analysis, impedance and admittance; series and parallel resonance, locus diagrams, realization of basic filters with R, L and C elements. transient analysis of RLC circuits with ac excitation. One-port and two-port networks, driving point impedance and admittance, open-, and short circuit parameters. Single-phase transformer: equivalent circuit, phasor diagram, open circuit and short circuit tests, regulation and efficiency; Three-phase induction motors: principle of operation, types, performance, torque-speed characteristics, no-load and blocked rotor tests, equivalent circuit, starting and speed control; Types of losses and efficiency calculations of electric machines
Signals and Systems Periodic, aperiodic and impulse signals; Laplace, Fourier and z-transforms; transfer function, frequency response of first and second-order linear time-invariant systems, impulse response of systems; convolution, correlation. Discrete-time system: impulse response, frequency response, pulse transfer function; DFT and FFT; basics of IIR and FIR filters.
Control Systems Feedback principles, signal flow graphs, transient response, steady-state-errors, Bode plot, phase and gain margins, Routh and Nyquist criteria, root loci, design of lead, lag and lead-lag compensators, state-space representation of systems; time-delay systems; mechanical, hydraulic and pneumatic system components, synchro pair, servo and stepper motors, servo valves; on-off, P, PI, PID, cascade, feedforward, and ratio controllers, tuning of PID controllers and sizing of control valves.
Analog Electronics Characteristics and applications of diode, Zener diode, BJT and MOSFET; small-signal analysis of transistor circuits, feedback amplifiers. Characteristics of ideal and practical operational amplifiers; applications of opamps: adder, subtractor, integrator, differentiator, difference amplifier, instrumentation amplifier, precision rectifier, active filters, oscillators, signal generators, voltage-controlled oscillators and phase-locked loop, sources and effects of noise and interference in electronic circuits.
Digital Electronics Combinational logic circuits, minimization of Boolean functions. IC families: TTL and CMOS. Arithmetic circuits, comparators, Schmitt trigger, multi-vibrators, sequential circuits, flipflops, shift registers, timers and counters; sample-and-hold circuit, multiplexer, analog-to-digital (successive approximation, integrating, flash and sigma-delta) and digital-to-analog converters (weighted R, R-2R ladder and current steering logic). Characteristics of ADC and DAC (resolution, quantization, significant bits, conversion/settling time); basics of number systems, Embedded Systems: Microprocessor and microcontroller applications, memory and input-output interfacing; basics of data acquisition systems, basics of distributed control systems (DCS) and programmable logic controllers (PLC).
Measurements SI units, standards (R,L,C, voltage, current and frequency), systematic and random errors in measurement, expression of uncertainty – accuracy and precision, propagation of errors, linear and weighted regression. Bridges: Wheatstone, Kelvin, Megohm, Maxwell, Anderson, Schering and Wien for measurement of R, L, Cand frequency, Q-meter. Measurement of voltage, current and power in single and three phase circuits; ac and dc current probes; true rms meters, voltage and current scaling, instrument transformers, timer/counter, time, phaseand frequency measurements, digital voltmeter, digital multimeter; oscilloscope, shielding and grounding.
Sensors and Industrial Instrumentation Resistive-, capacitive-, inductive-, piezoelectric-, Hall effect sensors and associated signal conditioning circuits; transducers for industrial instrumentation: displacement (linear and angular), velocity, acceleration, force, torque, vibration, shock, pressure (including low pressure), flow (variable head, variable area, electromagnetic, ultrasonic, turbine and open channel flow meters) temperature (thermocouple, bolometer, RTD (3/4 wire), thermistor, pyrometer and semiconductor); liquid level, pH, conductivity and viscosity measurement. 4-20 mA two-wire transmitter.
Communication and Optical Instrumentation Amplitude- and frequency modulation and demodulation; Shannon’s sampling theorem, pulse code modulation; frequency and time division multiplexing, amplitude-, phase-, frequency-, quadrature amplitude, pulse shift keying for digital modulation; optical sources and detectors: LED, laser, photo-diode, light-dependent resistor,square-law detectors, and their characteristics; interferometer: applications in metrology; basics of fiber optic sensing. UV-VIS Spectrophotometers, Mass spectrometer.

GATE Instrumentation Engineering Guidance

GATE Instrumentation Engineering Syllabus & Exam Pattern FAQs

What is the syllabus for GATE Instrumentation Engineering?

The syllabus for GATE Instrumentation Engineering includes subjects like Electrical Circuits, Control Systems, Sensors and Industrial Instrumentation, Communication and Optical Instrumentation, Digital Electronics, Signals and Systems, and General Aptitude. It covers various aspects of instrumentation and measurement.

Is the GATE Instrumentation Engineering syllabus subject to change?

The core subjects of the GATE Instrumentation Engineering syllabus remain relatively stable. However, it's important to check the official GATE website for any updates or changes in the syllabus before starting your preparation.

Are there any specific topics within each subject that are more important for GATE Instrumentation Engineering?

While the entire syllabus is important, some topics carry more weightage than others. For example, in Control Systems, topics like feedback control systems, stability analysis, and compensation techniques are crucial.

In Sensors and Industrial Instrumentation, topics like transducers, measurement systems, and industrial process control are significant.

What is the exam pattern for GATE Instrumentation Engineering?

The GATE Instrumentation Engineering exam consists of a total of 65 questions, with a duration of 3 hours. The question paper is divided into two sections: Multiple Choice Questions (MCQs) and Numerical Answer Type (NAT) questions. MCQs carry 1 or 2 marks each, while NAT questions carry 1 or 2 marks each. There is negative marking for incorrect answers in MCQs.

Is there a specific weightage assigned to each subject in the GATE Instrumentation Engineering exam?

No, there is no specific weightage assigned to each subject. The distribution of questions can vary from year to year.

However, it is generally observed that questions related to core subjects like Control Systems, Sensors and Instrumentation, and Electrical Circuits have a significant presence in the exam.

Are there any recommended books or resources to cover the entire GATE Instrumentation Engineering syllabus?

Some popular books for GATE Instrumentation Engineering preparation include 'Principles of Measurement Systems' by John P. Bentley, 'Automatic Control Systems' by Benjamin C. Kuo, 'Process Control Instrumentation Technology' by Curtis D. Johnson, and 'Signals and Systems' by Alan V. Oppenheim. Additionally, previous years' question papers and study materials from reputed coaching institutes can be helpful.

Are there any specific reference books for numerical problem-solving in GATE Instrumentation Engineering?

Yes, books like 'Digital Signal Processing: Principles, Algorithms, and Applications' by John G. Proakis and Dimitris G. Manolakis and 'Process Control Instrumentation Technology' by Curtis D. Johnson provide insights into numerical problem-solving in Instrumentation Engineering.

Is it necessary to study Mathematics for the GATE Instrumentation Engineering exam?

Yes, Mathematics is an integral part of the GATE Instrumentation Engineering syllabus. Topics such as linear algebra, calculus, differential equations, and probability are included.

It's essential to allocate sufficient time for studying and practicing mathematics concepts.

Are there any online resources or mock tests available for GATE Instrumentation Engineering preparation?

Yes, there are several online platforms and websites that offer free and paid resources for GATE Instrumentation Engineering preparation. Some popular ones include Gradeup, GateForum, and Made Easy.

These platforms provide study materials, video lectures, mock tests, and previous years' question papers.

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  1. I have completed my Second year. (INSTRUMENTATION ENGINEERING) looking ahead for Gate preparation . Can u plz suggest me which books to buy..and how to start preparing for Gate ..

  2. I am 3rd year instrumentation engineering student. Can I purchase the study material or books suggested this year only since I will be taking my gate exams in 2017 or do the books/ study material change every year

    • Hello Sanjay,

      If you are going to start your preparation for GATE from this year then you have to purchase study material and books this year.
      Because competition in GATE exam increasing year by year and will increase continuously. So it would be a wise decision to start your GATE preparation as soon as possible.
      GATE syllabus doesn’t change frequently so you can buy material and books any time.

      For important subjects and topics buy a previous years papers book in which you will find all the analysis very well including GATE 2015 paper.
      GATE 2016 Reference Books :

      First you have to have a book of previous GATE 20-30 years papers with solution so that you can get a good idea about GATE questions.
      Then atleast one standard book of each subject. All books required for GATE exam preparation in Engineering are mentioned in above link.

      Feel free to ask if you need any help in future & join us @ Google+ / Facebook for getting regular updates.


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