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Old February 14th, 2013, 11:00 AM
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Join Date: Nov 2011

Will you please provide me the IES Electronics and Communication Engineering Question Papers?

As per your request, I am giving you question paper of the Indian Engineering service’s Electronics and Communication Engineering. hope it helps.

Write down Maxwell’s equations for time-varying fields in both the differential and the
integral forms.

Also write down the word statements of these equations from the
mathematical statements in the integral form

An SI fiber has NA = 0.173 and supports 400 modes at a wavelength of 1.3u. Calculate its core area. To what value its core area should be reduced so that it is single-mode fiber at .3m?

For a 100 km FO link, fibers with 10 km unit lengths and having attenuation loss of 0.4
dB/km are used. Connector which is used between two unit lengths is having 1 dB loss. If the eceiver sensitivity is 10 nW/Mbps, calculate the maximum bit rate so that only one repeateris used in the link. Assume one connector loss at fiber receiver coupling. Power launched onto the fiber is 0 dBm

What are the important elements involved in a micro processor based system for the
measurement and monitoring of a temperature of a liquid contained in a furnace ? Draw the block diagram for this setup (which should include blocks like transducer, actuator, etc.) and explain the salient features of each of its blocks

For more question, I am giving the question papers in attachments. please find.

Last edited by Aakashd; October 16th, 2019 at 02:42 PM.
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Old February 15th, 2013, 12:27 PM
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Join Date: Jun 2011
Default Re: IES Question Papers Electronics and Communication Engineering

You are looking for the IES Electronics and Communication Engineering Question Papers, first of all here I am providing you syllabus of that:

IES Electronics and Communication Engineering Syllabus:

1. Materials And Components:
Structure and properties of Electrical Engineering materials; Conductors, Semiconductors and Insulators, magnetic, Ferroelectric, Piezoelectric, Ceramic, Optical and Super-conducting materials. Passive components and characteristics Resistors, Capacitors and Inductors; Ferrities, Quartz crystal Ceramic resonators, Electromagnetic and Electromechanical components.

2. Physical Electronics, Electron Devices and ICs:
Electrons and holes in semiconductors, Carrier Statistics, Mechanism of current flow in a semiconductor, Hall effect; Junction theory; Different types of diodes and their characteristics; Bi-polar Junction transistor; Field effect transistors; Power switching devices like SCRs, GTOs, power MOSFETS; Basics of ICs - bipolar, MOS and CMOS types; basics of Opto Electronics.

3. Signals and Systems: Classification of signals and systems:
System modeling in terms of differential and difference equations; State variable representation; Fourier series; Fourier representation; Fourier transforms and their applications 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 analyisis and characterization of discrete time systems; Random signals and probability, Correlation functions; Spectral density; Response of linear system to random inputs.

4. 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.

5. Electromagnetic Theory:
Analysis of electrostatic and magnetostatic fields; Laplace's and Piossons'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, misconstrue lines; Basics of wave guides and resonators; Elements of antenna theory.

For the detailed syllabus, here is attachment:
Attached Files Available for Download
File Type: pdf IES ECE Question Paper1.pdf (520.5 KB, 89 views)
File Type: pdf IES ECE Question Paper2.pdf (506.3 KB, 89 views)
File Type: pdf IES ECE Syllabus.pdf (20.0 KB, 45 views)
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Old August 5th, 2020, 07:19 PM
Default Re: IES Question Papers Electronics and Communication Engineering

I am doing IES Electronics and Communication Engineering exam preparations searching for question papers. Will you provide IES Electronics & Telecommunication Paper and syllabus?
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Old August 5th, 2020, 07:22 PM
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Join Date: Apr 2013
Default Re: IES Question Papers Electronics and Communication Engineering

Engineering Services Exam comprise of engineers who work under the government of India and designated as Class – 1 officer.

A combined competitive examination is conducted by the Union Public Services Commission (UPSC) for recruitment to the Engineering Services Exam.

The Examination constitutes of a written examination followed by an interview for the personality test.

As per your request below I am providing you the IES Question Papers for Electronics & Telecommunication:

IES Electronics & Telecommunication Paper

Electronics & Telecommunication Engineering Syllabus:


1. Basic Electronics Engineering:

Basics of semiconductors; Diode/Transistor basics and characteristics; Diodes for different uses; Junction & Field Effect Transistors (BJTs, JFETs, MOSFETs); Transistor amplifiers of different types, oscillators and other circuits; Basics of Integrated Circuits (ICs); Bipolar, MOS and CMOS ICs; Basics of linear ICs, operational amplifiers and their applications-linear/non-linear; Optical sources/detectors; Basics of Opto electronics and its applications.

2. Basic Electrical Engineering:

DC circuits-Ohm’s & Kirchoff’s laws, mesh and nodal analysis, circuit theorems; Electro-magnetism, Faraday’s & Lenz’s laws, induced EMF and its uses; Single-phase AC circuits; Transformers, efficiency; Basics- DC machines, induction machines, and synchronous machines; Electrical power sources- basics: hydroelectric, thermal, nuclear, wind, solar; Basics of batteries and their uses.

3. Materials Science:

Electrical Engineering materials; Crystal structure & defects; Ceramic materials-structures, composites, processing and uses; Insulating laminates for electronics, structures, properties and uses; Magnetic materials, basics, classification, ferrites, ferro/para-magnetic materials and components; Nano materials-basics, preparation, purification, sintering, nano particles and uses; Nano-optical/magnetic/electronic materials and uses; Superconductivity, uses.

4. Electronic Measurements and Instrumentation:

Principles of measurement, accuracy, precision and standards; Analog and Digital systems for measurement, measuring instruments for different applications; Static/dynamic characteristics of measurement systems, errors, statistical analysis and curve fitting; Measurement systems for non-electrical quantities; Basics of telemetry; Different types of transducers and displays; Data acquisition system basics.

5. Network Theory:

Network graphs & matrices; Wye-Delta transformation; Linear constant coefficient differential equations- time domain analysis of RLC circuits; Solution of network equations using Laplace transforms- frequency domain analysis of RLC circuits; 2-port network parameters-driving point & transfer functions; State equations for networks; Steady state sinusoidal analysis.

6. Analog and Digital Circuits:

Small signal equivalent circuits of diodes, BJTS and FETs; Diode circuits for different uses; Biasing & stability of BJT & JFET amplifier circuits; Analysis/design of amplifier- single/multi-stage; Feedback& uses; Active filters, timers, multipliers, wave shaping, A/D-D/A converters; Boolean Algebra& uses; Logic gates, Digital IC families, Combinatorial/sequential circuits; Basics of multiplexers, counters/registers/ memories /microprocessors, design& applications.


1. Analog and Digital Communication Systems:

Random signals, noise, probability theory, information theory; Analog versus digital communication & applications: Systems- AM, FM, transmitters/receivers, theory/practice/ standards, SNR comparison; Digital communication basics: Sampling, quantizing, coding, PCM, DPCM, multiplexing-audio/video; Digital modulation: ASK, FSK, PSK; Multiple access: TDMA, FDMA, CDMA; Optical communication: fibre optics, theory, practice/standards.

2. Control Systems:

Classification of signals and systems; Application of signal and system theory; System realization; Transforms& their applications; Signal flow graphs, Routh-Hurwitz criteria, root loci, Nyquist/Bode plots; Feedback systems-open &close loop types, stability analysis, steady state, transient and frequency response analysis; Design of control systems, compensators, elements of lead/lag compensation, PID and industrial controllers.

3. Computer Organization and Architecture:

Basic architecture, CPU, I/O organisation, memory organisation, peripheral devices, trends; Hardware /software issues; Data representation& Programming; Operating systems-basics, processes, characteristics, applications; Memory management, virtual memory, file systems, protection & security; Data bases, different types, characteristics and design; Transactions and concurrency control; Elements of programming languages, typical examples.

4. Electro Magnetics:

Elements of vector calculus, Maxwell’s equations-basic concepts; Gauss’, Stokes’ theorems; Wave propagation through different media; Transmission Lines-different types, basics, Smith’s chart, impedance matching/transformation, S-parameters, pulse excitation, uses; Waveguides-basics, rectangular types, modes, cut-off frequency, dispersion, dielectric types; Antennas-radiation pattern, monopoles/dipoles, gain, arrays-active/passive, theory, uses.

5. Advanced Electronics Topics:

VLSI technology: Processing, lithography, interconnects, packaging, testing; VLSI design: Principles, MUX/ROM/PLA-based design, Moore & Mealy circuit design; Pipeline concepts & functions; Design for testability, examples; DSP: Discrete time signals/systems, uses; Digital filters: FIR/IIR types, design, speech/audio/radar signal processing uses; Microprocessors & microcontrollers, basics, interrupts, DMA, instruction sets, interfacing; Controllers & uses; Embedded systems.

6. Advanced Communication Topics:

Communication networks: Principles /practices /technologies /uses /OSI model/security; Basic packet multiplexed streams/scheduling; Cellular networks, types, analysis, protocols (TCP/TCPIP); Microwave & satellite communication: Terrestrial/space type LOS systems, block schematics link calculations, system design; Communication satellites, orbits, characteristics, systems, uses; Fibre-optic communication systems, block schematics, link calculations, system design.
Attached Files Available for Download
File Type: pdf IES Electronics & Telecommunication Paper.pdf (1.17 MB, 0 views)
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