## 2017 Best practice books for GATE Electronics and communication-EC exam

In India everybody has a dream to do B.tech or M.tech or M.S in IIT’s or NIT’s or Top most universities, we work hard in +2 to crack JEE or AIEEE exam for B.tech admission in IIT’s or NIT’s, but its not possible to get admission to all students. so, one who didn’t get rank in JEE or AIEEE have decided to do at least M.Tech in those colleges,so we took admission in normal engineering colleges to get UG degree and we starts our preparation from the third year onwards for GATE which is the entrance exam for M.Tech admission in IIT’S, NIT’S, top universities. My GATE preparation was also started from 3rd year and I wrote this exam for 2 times and finally I got admission in NIT and I thanks a god to fulfil my dream. Here I want to share some objective books which useful for GATE exam.

GATE ECE previous papers by Kanodia,

### A Guidebook for GATE Electronics & Communication Engineering – 2014 ,which covers entire gate syllabus,

Gate ECE by r.k kanodia, which is covers entire syllabus,and cover more objective questions for practice..

Here is some useful stuff, where you can brush up the basics in Electronics and Communication Engineering.

Q. What is engineering?
A. The application of science to the needs of humanity and a profession in which a knowledge of the mathematical and natural sciences gained by study, experience, and practice is applied with judgment to develop ways to use economically the materials and forces of nature for the benefit of mankind.

Q. What is the difference between Electronics and Electrical?
A. Electronics work on DC and with a voltage range of -48vDC to +48vDC. If the electronic device is plugged into a standard wall outlet, there will be a transformer inside which will convert the AC voltage you are supplying to the required DC voltage needed by the device. Examples: Computer, radio, T.V, etc...
Electric devices use line voltage (120vAC, 240vAC, etc...). Electric devices can also be designed to operate on DC sources, but will be at DC voltages above 48v. Examples: are incandescent lights, heaters, fridge, stove, etc...

Q. What is Electronics?
A. The study and use of electrical devices that operate by controlling the flow of electrons or other electrically charged particles.

Q. What is Communication?
A. Communication means transferring a signal from the transmitter which passes through a medium then the output is obtained at the receiver. (or)communication says as transferring of message from one place to another place called communication.

Q. Define the terms.
A 1.Resistor: A resistor is an electrical component that limits or regulates the flow of electrical current in an electronic circuit.
2.Capacitor : A capacitor is a passive electronic component that stores energy in the form of an electrostatic field.
3.Diode: A diode is a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
4.Transistor: A transistor is a semiconductor device that regulates current or voltage flow and acts as a switch or gate for electronic signals.

Q. What is microprocessor?
A. A microprocessor is a program controlled semi conductor device (IC), which fetches, decodes and execute instructions.

Q. What is microcontroller?
A. A  microcontroller is a single chip that contains the processor (the CPU), non-volatile memory for the program (ROM or flash), volatile memory for input and output (RAM), a clock and an I/O control unit.

Q. What are the basic units of microprocessor?
A. The basic units or blocks of microprocessor are ALU, an array of registers and control unit.

Q. What is a bus?
A. Bus is a group of conducting lines that carries data, address and control signals.

Q. What is a signal?
A.  a signal is an electric current or electromagnetic field used to convey data from one place to another.

Q. What is sampling?
A.The process of obtaining a set of samples from a continuous function of time x(t) is referred to as sampling.

Q. State sampling theorem.
A.It states that, while taking the samples of a continuous signal, it has to be taken care that the sampling rate is equal to or greater than twice the cut off frequency and the minimum sampling rate is known as the Nyquist rate.

Q. What is cut-off frequency?
A. The frequency at which the response is -3dB with respect to the maximum response.

Q. What is pass band?
A. Passband is the range of frequencies or wavelengths that can pass through a filter without being attenuated.

Q. What is the principle of microwave?
A. Microwave essentially means very short wave. The microwave frequency spectrum is usually taken to extend from 1GHZ to 30GHZ. The main reason why we have to go in for microwave frequency for communication is that lower frequency band are congested and demand for point to point communication continue to increase. The propagation of the microwave takes place in spacewave in view of high gain and directivity in the form of a bean and is similar to that of light.

Q. What is latch up?
A.Latch-up pertains to a failure mechanism wherein a parasitic thyristor (such as a parasitic silicon controlled rectifier, or SCR) is inadvertently created within a circuit, causing a high amount of current to continuously flow through it once it is accidentally triggered or turned on. Depending on the circuits involved, the amount of current flow produced by this mechanism can be large enough to result in permanent destruction of the device due to electrical overstress (EOS) .

Q.Why is NAND gate preferred over NOR gate for fabrication?

A.NAND is a better gate for design than NOR because at the transistor level the mobility of electrons is normally three times that of holes compared to NOR and thus the NAND is a faster gate.

## Best Quantitative and reasoning Aptitude books for competitive exams and placements

Today generation is running back on very high competitive jobs, so many peoples dont know where to start preparation for written exams. Here i am giving some best aptitude books for Placements,competitive exams like CAT,MAT,GRE,TOEFL etc and also for government,private sector written exams.All these books are used to prepare for any aptitude exam.For more competitive books click here to search.

S.No Book Name Description Website
1

2

latest edition Quantitative aptitude by rs aggarwal pdf ebook, It covers all the topics for the competitive exams and also it useful for placements.You can buy these books online from trusted websites like flipkart with low cost.
3
R.S. Aggarwal Verbal & Non Verbal Reasoning pdf download which covers all the reasoning topics for competitive exams.This is one useful for preparing government jobs like banks exams,others..Buy it online
4
Quantitative aptitude by arun sharma 5th edition flipkart pdf,which contains hiver level aptitude questions which is useful for competitive exams like CAT,TOEFL,GMAT,GRE and for placements.

5
logical reasoning by arun sharma ebook from flipkart,This book is used to learn high level reasoning used for all competitive exams..
6
shakuntala devi puzzles to puzzle you book download,this book is used to test our memory good book and low cost is aroud 80 rupees..Good book for placements
7
shakuntala devi more puzzles pdf ebook download, this books is also used to test our memory.Good book for placements

## HAL MT previous papers and best books for ECE

HAL (Hindustan Aeronautics Limited) is one of the Navratna PSU mainly concentrate on design, development, manufacture, repair, overhaul and upgrade of Aircraft, Helicopters, Aero-engines, Industrial & Marine Gas Turbines,Accessories, Avionics & Systems and structural components for Satellites & Launch Vehicles.
HAL Management trainee-MT is one of the recruitment process for different branches,they recruit candidates on every year,here I am going to give information for ECE about previous papers questions and best books to prepare for HAL exam.I already discuss about the syllabus for the exam in my previous posts. The exam consists of three sections 1. general awareness 2. English and reasoning and 3. Technical section you can download the PDF file which contains sample previous questions for free.
Best Books for HAL MT Exam:

#### BOOKS

1.

General Awareness
1. Objective General Knowledge by Lucent
2.PSUs Public Sector Examinations: General Studies for U.P.S.C, Public Sector and Other Competitive Examinations

2.

English
1. Objective General English by R.S.Agarwal
2. High School English Grammar & Composition by wren and martin
3.Objective English For Competitive Exams by Hari Mohan Prasad
3.
Reasoning
1. Verbal and non verbal reasoning by R.S Agarwal
4.
Electronics Objectives
1. Guide to Public Sector Electronics and Communication Engineering by G.K publishers
2. Practice Book for PSUs: Electronics Engineering by made easy
3. Public Sector Examinations Electronics Engineering by made easy publications
4. Question bank in Electronics and communication by Galgotia
5. practice IES previous papers also

## Application procedure for ece internships or project work training in ISRO

So many peoples wants to do their internships or project work in reputed government electronics companies like ISRO,DRDO,BSNL.etc. In this article I am going to tell you the application process to do their internship or project work in ISRO centers. A Space application center,Ahmedabad which is under the the department of space,ISRO offers in plant training for project work or internship or thesis for both B.Tech and M.tech candidates.

Who are eligible to apply: Students who are studying in INDIA

Qualification: final year students of B.Tech/M.Tech with minimum first class through out education(SSLC onwards),preference will be given to the toppers from the institute.

Duration of the project: 4-12 months, certificate will be issued at the end of the training.

Selection Procedure: Through screening of received applications from various institutions.

Application Procedure: Interested/Motivated students are encouraged to send a consolidated formal request letter from HOD/Training and Placement Officer of the respective institution along with CV/Bio-data  to the following address at least three months before the commencement of the training. More details in: http://www.sac.gov.in

Human Resource Development Division
Space Applications Centre (ISRO)
Jodhpur Tekra

## Core Companies offering internships for electronics every year

Here we are giving some companies which offers summer and winter internships for ECE and EEE candidates.
How to apply:
If you want to apply,you just contact the HR of the respective company or check their carrier websites.I provided links of the company career website you just click and check that is there any openings. The companies like Reliance internships,BSNL ,wipro,HCl etc…

1. Bharat Sanchar Nigam Limited
2. Bharti Airtel Limited
3. Wipro Ltd
4.
5. General Electric
6. HCL Technologies Limited
7. Siemens Ltd
8. Samsung India Electronics Pvt. Ltd.
9. Honeywell
10.ONGC

To apply for internship for those companies you have to contact HR of the related company or check their related website for more updates.

Please note that you need to apply with full set of documents, at least 3 months before the intended start date:
• Resume