Instrumentation Engineering is one of the relatively popular branches among M.Tech aspirants. It is one out of 24 papers in GATE 2019 exam. Aspirants with Instrumentation Engineering background can opt for this paper during Gate exam. Candidates appearing in GATE 2019 Instrumentation Engineering (IN) must know proper syllabus and examination pattern for the subject for better GATE Score.
Details regarding which topics have to be studied for the examination will be available in the GATE 2019 Instrumentation Engineering syllabus. Compulsory sections of General Ability and Engineering Mathematics will be present in the GATE 2019 examination. All of the questions asked in the exam will be based on the syllabus of GATE 2019 Instrumentation Engineering.
The Graduate Aptitude Test in Engineering (GATE) is an all-India examination administered and conducted in eight zones across the country by the GATE Committee. The GATE score/rank is used for the candidates not only to be eligible for post graduation courses in engineering subject (ME, M.Tech, MS, Direct PhD) in IITs, NITs and other centrally funded institutions but also they can apply for lucrative engineering jobs offered by the PSUs.
The GATE 2019 exam will be held on February 2-3 and February 9-10, 2019 and the exam conducting body is IIT Madras. The GATE 2019 admit cards will be available from January 04, 2019 and results in March 2019. If any GATE 2019 registered candidate wants to change their examination city, can do the same till November 16, 2018, after paying an additional fee.
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GATE 2019 Instrumentation Engineering Syllabus
The first step before starting the preparation is to check the GATE 2019 Instrumentation Engineering Syllabus. It will allow the candidate to plan and decide the exam study strategy with a classification of strong and weak topics.
Section 1: Engineering Mathematics-
Linear Algebra: Matrix algebra, systems of linear equations, Eigen values and Eigen vectors.
Calculus: Mean value theorems, theorems of integral calculus, partial derivatives, maxima and minima, multiple integrals, Fourier series, vector identities, line, surface and volume integrals, Stokes, Gauss and Green’s theorems.
Differential equations: First order equation (linear and nonlinear), higher order linear differential equations with constant coefficients, method of variation of parameters, Cauchy’s and Euler’s equations, initial and boundary value problems, and solution of partial differential equations: variable separable method.
Analysis of complex variables: Analytic functions, Cauchy’s integral theorem and integral formula, Taylor’s and Laurent’s series, residue theorem, solution of integrals.
Probability and Statistics: Sampling theorems, conditional probability, mean, median, mode and standard deviation, random variables, discrete and continuous distributions: normal, Poisson and binomial distributions.
Numerical Methods: Matrix inversion, solutions of non-linear algebraic equations, iterative methods for solving differential equations, numerical integration, regression and correlation analysis.
Section 2: Instrumentation Engineering
Electrical Circuits: Voltage and current sources: independent, dependent, ideal and practical; v-I relationships of resistor, inductor, mutual inductor 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. One-port and two-port networks, driving point impedance and admittance, open-, and short circuit parameters.
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.
Digital Electronics: Combinational logic circuits, minimization of Boolean functions. IC families: TTL and CMOS. Arithmetic circuits, comparators, Schmitt trigger, multi-vibrators, sequential circuits, flip-flops, 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, 8-bit microprocessor and microcontroller: applications, memory and input-output interfacing; basics of data acquisition systems.
Analog Electronics: Characteristics and applications of diode, Zener diode, BJT and MOSFET; small signal analysis of transistor circuits, feedback amplifiers. Characteristics of operational amplifiers; applications of opamp: difference amplifier, adder, subtractor, integrator, differentiator, instrumentation amplifier, precision rectifier, active filters and other circuits. Oscillators, signal generators, voltage controlled oscillators and phase locked loop.
Measurements: SI units, systematic and random errors in measurement, expression of uncertainty – accuracy and precision index, propagation of errors. PMMC, MI and dynamometer type instruments; dc potentiometer; bridges for measurement of R, L and C, 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, phase and 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 (differential pressure, 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.
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-, pulse shift keying for digital modulation; optical sources and detectors: LED, laser, photo-diode, light dependent resistor and their characteristics; interferometer: applications in metrology; basics of fiber optic sensing.
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, P-I, P-I-D, cascade, feed forward, and ratio controllers.
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Exam Pattern for GATE 2019 Instrumentation Engineering (IN)
The most important and prior step is to go through the exam pattern for the same. The exam pattern is officially given by the GATE conducting authority. So it is recommended to go through it thoroughly and then plan the study schedule according to the weightage of different topics.
The paper pattern is as follows-
| TOPICS | MARKS DISTRIBUTION |
| Technical Section | 70 marks |
| General Aptitude | 10 Questions of 15 marks |
| Engineering Mathematics | 15 marks |
| Total Marks | 100 marks |
| Total Questions | 65 questions |
| Time Duration | 3 hours |
It consists of basically two type of questions namely
- Multiple Choice Questions which are objective type questions each having 4 choices of answers. They are of 1 or 2 marks in all Sections. It also includes negative marking. Hence, for each correct answer 1 will be added and for each incorrect answer 0.33 mark will be deducted and for each 2 marker question correct answer gives 2 marks and incorrect answer deducts 0.66 marks.
- Numeric Answer Questions are different from Previous MCQs. They don’t include any choices they have answers which are real numbers which are to inserted by virtual keypad appeared on the monitor via mouse. They also carry 1 or 2 marks in different sections. No negative marking is there for the same.
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