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Old March 11th, 2013, 03:07 PM
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Join Date: Jun 2013

How can I get the ISRO Previous Question Papers Electronics????

Ok, as you want the previous year question paper of Electronics of Indian Space Reasearch Organisation ISRO so here I am providing you.

ISRO Electronics Question Paper

Question paper is based on the following topics-

(1) Physical Electronics, Electron Devices and ICs:

Electrons and holes in semi-conductors, Carner Statistics, Mechanism of current flow in a semi-conductor, Hall effect; Junction theory; Different types of diodes and their characteristics; Bipolar Junction transistor; Field effect transistors; Power switching devices like SCRs, GTOs, power MOSFETs; Basics of ICs-bipolar, MOS and CMOS types; basic and Opto Electronics.

(2) Signals and Systems:

Classification of signals and systems; System modeling in terms of differential and difference equations; State variable representation; Fourier series; Fourier transforms and their application to system analysis; Laplace transforms and their application to system analysis; Convolution and superposition integrals and their applications; Z-transforms and their applications to the analysis and characterization of discrete time systems; Random signals and probability; Correlation functions; Spectral density; Response of linear system to random inputs.

(3) Network Theory:

Network analysis techniques; Network theorems, transient response, steady state sinusoidal response; Network graphs and their applications in network analysis; Tellegen's theorem. Two port networks; Z, Y, h and transmission parameters. Combination of two ports, analysis of common two ports. Network functions: parts of network functions, obtaining a network function from a given part. Transmission criteria: delay and rise time, Elmore's and other definitions effect of cascading. Elements of network synthesis.

(4) Electromagnetic Theory:

Analysis of electrostatic and magneto-static fields; Laplace's and Poisson's equations; Boundary value problems and their solutions; Maxwell's equations; application to wave propagation in bounded and unbounded media; Transmission lines: basic theory, standing waves, matching applications, microstrip lines; Basics of wave guides and resonators; Elements of antenna theory.

(5) Analog Electronic Circuits:

Transistor biasing and stabilization. Small signal analysis. Power amplifiers. Frequency. response. Wide banding techniques. Feedback amplifiers. Tuned amplifiers. Oscillators, Rectifiers and power supplies. Op Amp, PLL, other linear integrated circuits and applications. Pulse shaping circuits and waveform generators.

(6) Digital Electronic Circuits:

Transistor as a switching element; Boolean algebra, simplification of Boolean function Karnaugh map and applications; IC Logic gates and their characteristics; IC logic families: DTL, TTL, ECL, NMOS, PMOS and CMOS gates and their comparison; Combinational logic circuits; Half adder, Full adder; Digital comparator; Multiplexer De-multiplexer; ROM and their applications. Flip-flops. R-S, J-K, D and T flip-tops; Different types of counters and registers. Waveform generators. A/D and D/A converters. Semi-conductor memories.

(7) Control Systems:

Transient and steady state response of control systems; Effect of feedback on stability and sensitivity; Root locus techniques; Frequency response analysis. Concepts of gain and phase margins; Constant-M and Constant-N Nichol's Chart; Approximation of transient response from Constant-N Nichol's Chart; Approximation of transient response from closed loop frequency response; Design of Control Systems; Compensators; Industrial controllers.

(8) Communication Systems:

Basic information theory; Modulation and detection in analogue and digital systems; Sampling and data reconstructions; Quantization and coding; Time division and frequency division multiplexing; Equalization; Optical Communication: in free space and fiber optic; Propagation of signals at HF, VHF, UHF and microwave frequency; Satellite Communication.

(9) Microwave Engineering:

Microwave Tubes and solid state devices, Microwave generation and amplifiers, Wave guides and other Microwave Components and Circuits, Microstrip circuits, Microwave Antennas, Microwave Measurements, Masers, Lasers; Micro-wave propagation. Microwave Communication Systems-terrestrial and satellite based.

(10) Computer Engineering:

Number Systems. Data representation; Programming; Elements of a high level programming language PASCAL/C; Use of basic data structures; Fundamentals of computer architecture; Processor design; Control unit design; Memory organization, I/o System Organization. Microprocessors: Architecture and instruction set of Microprocessor's 8085 and 8086, Assembly language Programming. Microprocessor Based system design: typical examples. Personal computers and their typical uses.

ISRO Electronics Question Paper

Here I am attaching a pdf file of question paper
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File Type: pdf ISRO Electronics Question Paper.pdf (579.1 KB, 136 views)

Last edited by Aakashd; June 25th, 2019 at 09:47 AM.
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Old March 13th, 2013, 12:16 PM
Sashwat's Avatar
Super Moderator
Join Date: Jun 2011
Default Re: ISRO Previous Question Papers Electronics

Here is the ISRO Previous Question Papers Electronics:

An LTI system has the input signal x(n). Which of the following sequence of
operations is most appropriate to get output y(n) = x(n -Ma).
a) Interpolation by L, Delay by M, Decimation by L
b) Delay by M, Interpolation by L, Decimation by M
c) Decimation by L, Delay by M, Interpolation by L
d) Interpolation by L, Decimation by L, delay by M
Consider a low pass random process with a white noise power spectral density
Sx(o) = Nl2 where -2nB < o5 2nB
0 elsewhere
The Auto-correlation function Rx(.c) is
a) 2NBsinc(2nB.c)
b) nNBsinc(2nB.c)
c) NBsinc(2nB.c)
d) None of the above

Remaining questions are in those entire attachments click on those to see the papers also you can download the papers from here.
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Old September 15th, 2015, 11:54 AM
Default Re: ISRO Previous Question Papers Electronics

I want the previous year question paper of Electronics of Indian Space Reasearch Organisation ISRO so can you please provide me?
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