Digital communication lecture : IIT Kharagpur

 This post contains the various lecture on the digital communication engineering by the professor of IIT Kharagpur.
   this is the one of the important subject for the all PSU's, IES as well as GATE examination. the questions in the communication is mostly asked from this side. this documents are very useful for the attending that questions and very useful for the IES conventional paper, and also contribute a big role in the interviews in the various IITS, and ISRO, BARC like organization they asked very basic questions but in indirect manner.
   the links given below for the downloading the pdf documents.

   40 Lectures on Digital Communication

MODULE :1

Lesson: 1

Lesson: 2

Projects & Development India Ltd (PDIL) - RECRUITMENT OF MANAGEMENT TRAINEE 2012

(ADVT.NO. HR/71/12/02)
Projects & Development India Limited (PDIL), an ISO-9001-2000 Certified Company, is a leading Design Engineering and Consultancy organization having experience of over 40 years in Design, Detailed Engineering, Procurement, Project Management, Construction Supervision and Commissioning of Fertilizer & Allied Chemical, Refinery, Oil & Gas, Power, Housing/Township and Infrastructure projects. 
      PDIL is having its offices at Noida, Baroda, Sindri and Inspection Offices at Mumbai, Chennai, Kolkata, Hyderabad, Chennai & Vizag.


LAST DATE-
Commencement of online registration of applications by candidates     - 25th July 2012
Last date for receipt of online applications     - 10th August 2012

Qualification

SL. NO.	POST	DISCIPLINE	CODE NO.	QUALIFICATION                 (qualifying disciplines)
1.	Management Trainee	Chemical	CH	Chemical Engg./Chemical Technology
		Civil	CE	Civil Engg./ Structural Engg.
		Electrical	EE	Electrical Engg./ Electrical & Electronics Engg./ Power Engg.
		Instrumentation	IN	Control & Instrumentation/ Instrumentation/ Electronics/ Control Instrumentation & Process Control
		Industrial (MS)	PI	Industrial Engg./ Industrial Management/ Manufacturing Engg./ Production & Industrial Engg./ Production Engg./ Production & Management
		Mechanical	ME	Mechanical Engg.

Age Limit (as on 31-08-2012)- 25 years.

Syllabus of RAILTEL DM(TECH)

RAILTEL is one unit of the ministry of railways. railtel conducted the recruitement of the DM(technnical) in various engineering discipline. The paper pattern for the 2012 has been announced by the organization. the syllabus of the written examination is given below......

Syllabus for Entrance Examination of Recruitment of deputy Manager/Technical in RailTel

DownloadSyllabus -written examination for direct rectt.- DM(Tech)

BEL Probationary engineer(PE) Paper-2012

   BEL has conducted the written test for the recruitment of the engineers (Probationary engineers) for 2012 on  1st JUL 2012 as scheduled. The exam conducted in the two slot in the same days.The review of the written test is given as.....

SAIL Management trainee admit card 2012 download

SAIL MT Admit card 2012 :- Steel Authority of India Limited  (SAIL) invites the application for 1090 Management Trainee recruitment 2012.SAIL conduct written against this recruitment  on 17 /06/2012. The candidates who filled application against this vacancy can download their management trainee admit card 2012 from 04/06/2012  .SAIL MT admit card will be available on official website of SAIL. 

BEL Previous year paper/ Sample paper

The pattern of the technical paper of PE is fully objective type paper. paper consist of almost equal no of question from all of the technical subjects in which most of the question is one line answer. there is no need of the calculator to solve the problem.

The paper also have the negative marking. please read the instruction before attempting the paper because no exact data given in the notification for the negative marking.The paper is given below...

if you know the answer of question write in the comment box. if any question found incorrect please also notify me......

Railtel Paper Pattern And syllabus

RAILTEL CORPORATION OF INDIA LIMITED, a premier Public Sector Undertaking under Ministry of Railways has been incorporated in September 2000. RailTel is a telecom infrastructure provider and has been set up primarily to modernize and augment the existing infrastructure for providing communication facilities for Railways and other commercial users. RailTel offers career opportunities to bright, young and dynamic professionals and invites applications from Indian citizens for recruitment in Technical, Marketing and Personnel & Administration departments .
The details of the vacancy position are as given below in this vacancy notice.

Syllabus of RAILTEL DM(TECH)

Selection Procedure

Selection will be done in the two phase written test followed by the interview process. shortlisted candidate in the written test will be called for the interview process.

Written test: 

written test will be of the two hours. the detail is given in the table.

No. of question	Mode of paper	Description	Period of the examination	Medium of examination
100	Objective type	Section A: 60 ques. (professional subjects)	2 hours(120 Min.)	English & Hindi.
	Objective type	Section B: 40 ques. (General awareness, quantitative aptitude, logical reasoning and General English.)

Syllabus of technical paper : 

  The technical paper consist of the basic question related to your engineering branch. the level of the question will be the same as the normal PSU's. The paper cover all subjects with more question  s coverd by the communication related subjects for the ELECTRONICS branch.

 Optical fiber communication question having the highest chance to come for the ELECTRONICS branch.

The model paper will be available soon.........
Syllabus of RAILTEL DM(TECH)

BEL(PE) 2012 Paper 

COAL INDIA (CIL) MT(management trainee) syllabus

 The written test shall be of 3 hours (180 min) duration categorized into two sections (Papers). and both of which will be in the form of objective type questions. Both of the paper having the equal marks distribution.

coal india paper pattern

	Description	Max marks	Min Qual. Marks
			UR	OBC	SC/ST	PH
Paper-1	General awareness and aptitude	100	45	40	35	35
Paper-2	Technical aptitude	100	45	40	35	35
Total (1+2)	3 hours(180 Min)	200	110	100	90	90

Interview shortlisting:


on the basis of the written test total 1:3 ratio candidate will be called for the interview process.


Admit card:
 admit card for the written test will be available shortly on the website of the coal india ltd.

Syllabus of BEL- PE(Probationary engineer) -2012

The written test will consist of Objective type questions from basic Engineering subjects/HR subjects, in the respective disciplines / specialisations and General Aptitude. 

part-1 Non technical    

General aptitude + General english

Part-2: Technical

technical section is related to the your discipline applied. A) ELECTRONICS, B) MECHANICAL, C) COMPUTER SCIENCE

A) Electronics-
Networks: Network graphs:matrices associated with graphs;incidence,fundamental cut set and fundamental circuit matrices. solution methods: nodal and mesh analysis. Network theorems: superposition, Thevenin and Norton’s maximum power transfer, Wye-Delta transformation. Steady state sinusoidal analysis using phasors. Linear constant coefficient differential equations; time domain analysis of simple RLC circuits, Solution of network equations using Laplace transform: frequency domain analysis of RLC circuits. 2-port network parameters: driving point and transfer functions. State equations for networks.

ECE Interview questions with answer

Electronics and Communication Engineering interview preparation

1. Which range of signals is used for terrestrial transmission?
2. Why is there need for modulation?Which type of modulation is used in TV transmission?
3. How can you convert an SR Flip-flop to a JK Flip-flop?
4. How can you convert an JK Flip-flop to a D Flip-flop?
5. What is Race-around problem? How can you rectify it?
6. Which semiconductor device is used as a voltage regulator and why?
7. Explain an ideal voltage source?
8. Explain zener breakdown and avalanche breakdown?
9. What are the different types of filters?
10. What is the need of filtering ideal response of filters and actual response of filters?
11. What is sampling theorem?
12. What is impulse response?
13. Explain the advantages and disadvantages of FIR filters compared to IIR counterparts.
14. What is CMRR?
15. Why we use vestigial side band (VSB-C3F) transmission for picture?
16. When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency?
17. For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit?
18. BPFSK is more efficient than BFSK in presence of noise. Why?
19. What is meant by pre-emphasis and de-emphasis?
20. Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?
21. Explain ASCII, EBCDIC?
22.  What is the basic difference between Latches and Flip flops?
23. What is a multiplexer?
24. Explain half-duplex and full-duplex communication?

                    click here for the answers

SAIL Previous year paper (Management Trainee)

SAIL MT recruitment paper  

 The given papers is the placement paper of the SAIL(steel authority of india ltd.) for the recruitment of the management trainee technical.

paper consist of the two sections-

Section 1- Non technical(G.S + Aptitude +Reasoning + English  )

Section 2- Technical (related to your engineering branch )

SAIL 2010 Technical paper

SAIL Paper-1

IIST Recruitment for scientist & engineers

Government Of India, Department Of Space
Indian Institute of Space Science & Technology (IIST)
Valiamala PO, Thiruvananthapuram – 695 547, Kerala

Advt. No: IIST/42/12

Indian Institute of Space Science and Technology (IIST) invites applications for the following categories on contract basis to work on Research & Development (R&D) Projects :

• Project Scientist
• Project Engineers in various disciplines.

Age Limit: 35 years 

Last Date for Receipt of Applications: 22 June, 2012

Stipend:For B.E/B.Tech/M.Sc or equivalent degree holders Rs.30,000/- (consolidated) per month.
For M.Tech or equivalent degree holders Rs.35,000/- (consolidated) per month

Apply Details :

should reach the Administrative Officer, Indian Institute of Space Science and Technology (IIST), Valiamala PO, Thiruvananthapuram – 695547 on or before 22nd June 2012 by ordinary post in a cover superscribed “Application for the position of Project Scientist/Engineer” and the Post No (eg.PS-03/PE-05).

Check All Details & Application Format  

ISRO SCIENTISTS/ENGINEERS 'SC Written test result

SCIENTISTS/ENGINEERS 'SC -2012  Short listed candidates for the interview

Centralised Recruitement to the Post of SCIENTISTS/ENGINEERS 'SC' in the diciplines of ELECTRONICS and MECHANICAL , ISRO HQ:ICRB:01:2012 dated 08-02-2012. written test result has been announced.

you can check the list of the shorlisted candidate for the interview.

   

List of student... Electronics   Mechanical

Schedule of the interview is announce later and inform the selected candidates directly.. 

NPCIL ET-2012 cut-off

NPCIL (ET-2012)  cut-off 

NPCIL recruitment drive for executive trainee 2012 has conducted the online test between 16-22 April 2012 . cutoff marks of the test is declared now.

  you can check your marks on the following link...

Electronics- 186/300

Electrical- 133/300

Mechanical- 70/300

Check your marks here

ECIL Previous year Papers

ECIL (Electronics Corporation Of India Ltd.) GET Examination conducted for the recruitment of the  engineers in the various deparments.
 Previous papers of this Exam is given below...

Electronic and communication 2010
1.The current I in the given network.
a) 1A
b) 3A
c) 5A
d) 7A

2.For the Delta‐ Wye transformation in given figure, the value of the resistance R is.
a) 1/3 ohms
b) 2/3 ohms
c) 3/2 ohms
d) 3 ohms

3.In the given network, the Thevenin’s equivalent as seen by the load resistance Rl is
a) V=10 V, R= 2ohms
b) V=10V, R=3 ohms
c) V=15V, R= 2ohms
d) V=15V, R=3 ohms

4.The current I in a series R‐L circuit with R=10 ohms and L=20mH is given by i=2sin500t A. If v is the voltage across the R‐L combination then i
a) lags v by 45 degree
b) is in‐phase with v
c) leads v by 45
d) lags v by 90

5.In thr given network, the mesh current I and the input impedance seen by the 50 V source, respectively, are
a) 125/13 A and 11/8 ohms
b) 150/13 A and 13/8 ohms
c) 150/13 A and 11/8 ohms
d) 125/13 A and 13/8 ohms

6.A voltage sourcehaving a source impedance Z = R + jX can deliver maximum Average power to a load impedance Z, when
a) Z = R + jX
b) Z = R
c) Z = jX
d) Z = R –jX

7.In the given circuit, the switch S is closed at t=0. Assuming that there is no initial Charge in the capacitor, the current i(t) for t>0 is
a) V/R e^ (‐2t/RC)
b) V/R e^ (‐t/RC)
c) V/2R e^ (‐2t/RC)
d) V/2R e^ (‐t/RC)
....................
.......
Click here for full document

Recommended Books for IES

Books for IES Electronic and Telecommunications Engineering
  - Network Analysis: Van Valkenburg 
  - Network and Systems: D. Roy Choudhary
  - Integrated Electronics: Jacob Milman & C. Halkias, Millman & Grabel 
  - Integrated Circuits: K.R. Botkar 
  - Op. Amps & Linear Integrated Circuit: Gayakwad 
  - Digital Logic & Computer Design: Moris Mano 
  - Signals and System: Oppehum, Willsky & Nacob 
  - Automatic Control System: Benjamin C. Kuo 
  - Control System Engineering: Nagrath & Gopal 
  - Principle of Communication System: Taub & Schilling
  - Communication System: A. Bruu Carlson 
  - Electromagnetic Waves & Radiating Systems: Jardon & Balmain, JD Kraus 
Books for IES Electrical Engineering
  - Network Analysis: Van Valkenburg 
  - Electromagnetic: Willain H. Hayt 
  - Electrical Machinery: PS Bhimra 
  - Electrical Machines: Nagrath & Kothari
  - Power System Engineering: Nagrath & Kothari
  - Electric Power Systems: CL Wadhwa 
  - Automatic Control System: Benjamin C. Kuo
  - Control System Engineering: Nagrath & Gopal 
  - Electrical & Electronic Measurement and Instrumentation: AK Sawhney 
  - Integrated Electronics: Milman & Halkias, Millma & Grobel 
  - Digital Logic & Computer Design: Morris Mano 
  - Power Electronics: PS Bhimra 

Books for IES Civil Engineering
  - Strength of Materials: Gere & Temoshenko, B C Punamia 
  - Structural Analysis: Negi, S Ramamurtham, C K Vang 
  - Concrete Structures: Punamia & Jain, H J Shah 
  - Steel Structures: Duggal 
  - Soil Mechanics & Foundation Engineering: Ranjan & Rao, Venkat Ramaiha, S K Garg 
  - Fluid Mechanics and Hydraulics: Modi & Seth, R K Bansal, Subramanyam 
  - Hydrology: Subramanyam 
  - Irrigation: S K Garg 
  - Highway Engineering: Khanna & Jasto, Kadiyali 

Books for IES Mechanical Engineering
  - Enginnering Thermodynamics: PK Nag
  - IC Engine: ML Mathur and RP Sharma 
  - Gas Turbine and Propulsive Systems: PR Khajuria & SP Dubey 
  - Fluid Mechanics: Modi & Seth, RK Bansal 
  - Compressible Flow: SM Yahya 
  - Heat and Mass Transfer: JP Hollman, RC Sachdeva 
  - Refrigeration and Air Conditioning: CP Arora, Domkundwar 
  - Fluid Machinery: Jagdish Lal, RK Bansal 
  - Theory of Machines: RS Khurmi, Malik & Ghosh 
  - Mechanical Vibration: Grover 
  - Machine Design: Shigley, VB Bhandari 
  - Material Science: WD Callister, IP Singh 
  - Production Engineering: Kalpkjian Schmid, Amitabh Ghosh & AK Malik 
  - Industrial Engineering: O P Khanna, Buffa & Sarin 
  - Operations Research: Kanti Swarup 
  - Strength of Materials: Gere & Timoshenko, BC unamia, Sadhu Singh