Manufactuing Technology I,II Question bank download

MECHNICAL  ENGINEERING QUESTION  BANK
      PART-A

1.     What is the difference between a ram type turret lathe and saddle type turret lathe?
2.     What are the common work holding devices used on milling machines?
3.     Why is it essential that the cutting point of the tool should be level with the spindle center while machining taper on a work-piece
4.      Give two examples of orthogonal cutting
5.     Under what conditions planning operation would be preferred over other machining processes like milling, broching, shapping, etc
6.      What are the four important characteristics of materials used for cutting tools?
7.     What for lapping is used?
8.     State the abrasives used in the manufacture of grinding wheels.
9.     What is the difference between incremental and absolute system?
10.     What is the role of computer for NC machine tool?
11.     What are the factors responsible for built-up edge in cutting tools?
12.     What is electro chemical wear in tools?
13.     Mention four different types of chucks used in a machine shop.
14.     What is rake angle? What is the effect of nose radius in tools?
15.     What is up milling and down milling operations?
16.     Mention the major elements of NC machines.
17.     What is roller burnishing process?
18.     Define NC
19.      Mention four important factors that influences the selection of grinding wheels.
20.     What you know about straight fluted drill and fluted drill?

PART-B 

1. Expain the geometry of single point cutting tool with suitable sketches 

2. Explain the basic actions of cutting fluids. 

3. During the orthogonal cutting, the following data where recorded
      Back rake angle = 25 deg
      Chip thickness = 0.15 mm / rev
      Length of chip = 40 mm
      Length of chip = 100 mm
      Width of chip before cut = 3.5 mm
      Coefficient of friction = 0.75
      Cutting speed Vc = 250 m / mm
      Average shear stress = 250 N / mmDetermine power consumption.
4. Explain the thread cutting operation in a lathe with a neat sketch. Also make a note on knurling, grooving and forming operations in a lathe. 

5. Discuss the features of ram type and saddle type turret

 6. Explain the features of multi spindle automatics. 

7. With the sketches explain the features of the major elements of a twist drill 

8. Explain different types of milling cutters 

9. Make a note on different types of work holding devices used in a slotting machine.

 10. Explain the different types of table drive and feed mechanisms in a planning machine.

 11. Explain the salient features of a centre less grinding machine and discuss the different operations that can be carried out in it. Mention some advantages. 

12. Briefly discuss about different types of abrasives used in a grinding wheel. 

13. Explain the gear shaving, gear honing and gear lapping processes. 

14. Discuss the important design features of CNC machine tools.

15. Write Short notes on:
      i NC machine tool classification
      ii. APT programming structure
      iii G and M codes
      iv CNC machine Vs Conventional machine 

16. Explain the conditions that promote the formation of the following types of chip
      i. Continuous chips without built up edge
      ii. Continuous chips with built up edge
      iii. Discontinuous chip 

17. Define the Various tool parts of a single point cutting tool with a neat sketch. 

18. What are the slandered angles of cutting tool? Illustrate with an example. 

19. Describe some of the methods and equipment for holding work on a lathe. 

20. Explain any four commonly used attachments on lathe. 

21. Briefly explain the principle of working of the sliding head type single spindle automatic machine.

 22. Describe with neat sketch a turret automatic screw machine. 

23. State the advantages of Ward-Leonard drive. 

24. Explain with a sketch "Fast and Loose pulley" quick return mechanism of a planer table. 

25. State the methods of holding milling cutters. 

26. Explain simple indexing, compound indexing and differential indexing with suitable example.

 27. State the advantages and limitations of broaching. 

28. Compare gear hobbing with gear shaping. 

29. Explain self-sharpening characteristics of grinding wheel.

 30. Describe the use of cutting fluids in grinding. 

31. Explain wheel truing and dressing. 

32. State a few typical applications where the use of numerical control would be justified

.33. Describe in brief the basic components of a tape-operated NC machine tool.

 34. Discuss the advantages of computer numerical control system.

 35. What is the difference between positioning machines and contouring machines?

Communication theory question paper download

B.E. / B.Tech.Degree Examinations, April / May 2010Regulations 2008

Fourth Semester

Electronics and Communication Engineering

EC2252 Communication Theory
Time: Three Hours Maximum: 100 Marks

Answer ALL Questions

Part A - (10 x 2 = 20 Marks)
1. How many AM broadcast stations can be accommodated in a 100 kHz bandwidth
if the highest frequency modulating a carrier is 5 kHz?

2. What are the causes of linear distortion?

3. Draw the block diagram of a method for generating a narrowband FM signal.

4. A carrier wave of frequency 100 MHz is frequency modulated by a signal20 sin (200 ¼ £ 103 t):
What is bandwidth or FM signal if the frequency sensitivity of the modulation is25kHz = V.

5. When i s a random process called deterministic?

6. A receiver connected to an antenna or resistance or 50 has an equivalent noise

resistance or 30 -. Find the receiver noise figure.

7. What are the characteristics of superheterodyne receivers?

8. What are the methods to Improve FM threshold reduction?

9. The ruin entropy function.

10. The ¯ ne Rate Bandwidth and Bandwidth e ± ciency.
Part B - (5 x 16 = 80 Marks)
11. (A) (i) Draw an envelope detector circuit used for Demodulation of AM and ex-plain its operation. (Marks 10)

(Ii) How SSB can be generated using Weaver's method? Illustrate with a neatblock diagram. (Marks 6)

OR

11. (B) (i) Discuss in detail about frequency translation and frequency division mul-tiplexing technique with diagrams. (Marks 10)

(Ii) compare Amplitude Modulation and Frequency Modulation.(6)
12. (A) (i) Using suitable Mathematical analysis show That Produces FM modulationin ¯ nite sideband. Also deduce an expression for the frequency modulatedoutput and its frequency spectrum. (Marks 10)

(Ii) How can you generate an FM from PM and PM from FM?(Marks 6)

OR

12. (B) (i) A 20 MHz is frequency modulated by a sinusoidal signal Such That the max-imum frequency deviation i s 100 kHz. Determine the modulation indexand approximate bandwidth of the FM signal for the following, modulatingsignal frequencies,

(1) 1 kHz (2) 100 kHz and (3) 500 kHz. (Marks 8)(Ii) Derive the time domain expressions or FM and PM signals.(8)
13. (A) (i) Give a random process, X (t) = Acos (wt + μ), where A and! are constantsand μ is a uniform random variable. That show X (t) i s ergodic in bothmean and auto correlation. (Marks 8)

(Ii) Write a short note on shot noise And also explain about power spectraldensity of shot noise. (Marks 8)OR

13. (B) Write the details about narrowband noise and the properties or quadraturecomponents or narrowband noise. (Marks 16)

14. (A) Derive an expression for SNR at Input (SNRC) and output or (SNRo) or acoherent detector. (Marks 16)OR

14. (B) (i) Explain pre-emphasis and de-emphasis in detail. (Marks 10)(Ii) compare the performances of AM and FM systems. (Marks 6)



15. (A) (i) Find the code words for ¯ ve symbols of the alphabet or a discrete memorysource with less probability f0.4, 0.2, 0.2, 0.1, 0.1g, using Hu ® man codingand determining the source entropy and average codeword length. (Marks 10)

(Ii) Discuss the source coding theorem. (Marks 6)

OR

15. (B) (i) Derive the channel capacity of a continuous band limited white Gaussiannoise channel. (Marks 10)

(Ii) Discuss about rate distortion theory. (Marks 6)

Piping Design and Drafting Training Chennai

Name Of The Training Institute: Institute of Plant Engineering and Design

Location Of The Training Institute: Chennai

Training Offered: Piping Design and Drafting

This course prepares for a career in Piping Design and Drafting. Our course is unique Compared to others due to our cross-industry training provided across various industries like Oil and Gas, Water Treatment, Chemical and Pulp and Paper.

Please attend a free demonstration to more about the course. Our engineers will be available to answer your various questions.

Course Duration: Minimum 60 Hrs

Course Contents
- Introduction to Process Plant Piping
- Job Description of Piping Designer
- Components of Piping System
- Process Plant Equipments
- Design Documents and Drawings
- Piping Standards, Specifications and ASME Codes
- ASME B31.3 Material Selection & Classification.
- Calculations and Formulas
- Steam Piping Principles
- Process Piping Principles
- Utilities Piping Principles
- Corrosion and Insulation
- Designing Pipe Supports
- Output Drawings and Documents
- Scope of Stress Analysis

Address Of The Training Institute:
Institute of Plant Engineering and Design
Second Floor, New no 142,
KH Road Aynavaram,
Chennai - 600 023

Website: http://www.iped.in/

Email Address: enquiry@iped.in

Tata Steel Admit Card download 2012

Name of the Organization: Tata Steel (tatasteel.com)
Type of Announcement: Admit Card
Designation: Trade Apprentices-2012

Clikc here to download the admit card
Home Page: http://203.197.123.30/recruit/Default.aspx
http://www.tatasteel.com

** Written Test is scheduled on Sunday, the 12th August 2012 followed by interview and medical examination subsequently.
** Those who are found fit will be offered admission to the training program, which is scheduled to commence from 24th September 2012.

Your written test Admit Card will Also be available on Enquiry page.

Enquiry for Trade Apprentices 2012

1) Enter your Reference No.
2) Enter your Date of Birth
3) Click on the Submit Button

Enquiry or TA 2012: Ph-0657-6644232, Mail snti.recruit @ tatasteel.com

Andhra University results declared

The Andra university results for B.A,B.SC and B.com 3rd year results has been declared now. The candidates can check their results at
http://www.andhrauniversity.info/

Visveswaraya Technology university results declared

The Visverwaraya Technology university results has been declared now. The candidates who were all appeared can check their results at
http://www.vtu.ac.in/

EC 2033 Power Electronics syllabus download

EC2033 POWER ELECTRONICS L T P C 3 0 0 3
UNIT I POWER ELECTRONICS DEVICES 9
Characteristics of power devices - characteristics of SCR, diac, triac, SCS, GTO, PUJT
- Power transistors - power FETs - LASCR - two transistor model of SCR - Protection
of thyristors against over voltage - over current, dv / dt and di / dt.
UNIT II TRIGGERING TECHNIQUES 9
Turn on circuits for SCR - triggering with single pulse and train of pulses - synchronizing
with supply - triggering with microprocessor - forced commutation - different techniques
- Series and parallel operations of SCRs.

UNIT III CONTROLLED RECTIFIERS 9
Converters - single phase - three phase - half controlled and fully controlled rectifiers -
Waveforms of load voltage and line current under constant load current - effect of
transformer leakage inductance - dual converter.
UNIT IV INVERTERS 9
Voltage and current source inverters, resonant, Series inverter, PWM inverter. AC and
DC choppers - DC to DC converters - Buck, boost and buck - boost.
UNIT V INDUSTRIAL APPLICATIONS 9
DC motor drives - Induction and synchronous motor drives - switched reluctance and
brushless motor drives - Battery charger - SMPS - UPS - induction and dielectric
heating.
TOTAL = 45 PERIODS
TEXT BOOKS
1. Muhamed H.Rashid: Power Electronics Circuits, Devices and Applications, 3
rd
Edition. 2004 PHI.
2. M.D. Singh and K.B. Kanchandani, Power Electronics, 2
nd Edition, TMH, 2007.
REFERENCES
1. Sen: Power Electronics, TMH, 1987.
2. Dubey: Thyristorised Power Controllers, Wiley Eastern 1986.
3. Vithayathil: Power Electronics - Principles and Applications, McGraw-Hill, 1995.
4. Lander: Power Electronics, 3
5. Jacob, Power Electronics, Thomson Learning, 2002.
6. V.R. Moorthy, Power Electronics, Oxford University Press, 2005.rd Edition, McGraw-Hill, 1994.

Format for preparing project Report

FORMAT   FOR   PREPARATION  OF   PROJECT   REPORT FOR B.E. / B. TECH. / B. ARCH.

1.                  ARRANGEMENT OF CONTENTS:

The sequence in which the project report material should be arranged and bound should be as follows:

1.              Cover Page & Title Page

2.              Bonafide Certificate

3.              Abstract

4.              Table of Contents

5.              List of Tables

6.              List of Figures

7.              List of Symbols, Abbreviations and Nomenclature

8.              Chapters

9.              Appendices

10.          References

The table and figures shall be introduced in the appropriate places.

2.                  PAGE DIMENSION AND BINDING SPECIFICATIONS:

The dimension of the project report should be in A4 size.   The project report should be bound using flexible cover of the thick white art paper.  The cover should be printed in black letters and the text for printing should be identical.

3.                  PREPARATION FORMAT:

3.1       Cover Page & Title Page – A specimen copy of the Cover page & Title page of the   project   report are given in Appendix 1.

3.2       Bonafide Certificate – The Bonafide Certificate shall be in double line spacing using Font Style Times New Roman and Font Size 14, as per the format in Appendix 2.

           

            The certificate shall carry the supervisor’s signature and shall be followed by the supervisor’s name, academic designation (not any other responsibilities of administrative nature), department and full address of the institution where the supervisor has guided the student. The term ‘SUPERVISOR’ must be typed in capital letters between the supervisor’s name and academic designation.

3.3       Abstract – Abstract should be one page synopsis of the project report typed double line spacing, Font Style Times New Roman and Font Size 14.

3.4       Table of Contents – The table of contents should list all material following it as well as any material which precedes it. The title page and Bonafide Certificate will not find a place among the items listed in the Table of Contents but the page numbers of which are in lower case Roman letters. One and a half spacing should be adopted for typing the matter under this head. A specimen copy of the Table of Contents of the project report is given in Appendix 3.

3.5       List of Tables – The list should use exactly the same captions as they appear above the tables in the text. One and a half spacing should be adopted for typing the matter under this head.

3.6       List of Figures – The list should use exactly the same captions as they appear below the figures in the text. One and a half spacing should be adopted for typing the matter under this head.

3.7       List of Symbols, Abbreviations and Nomenclature – One and a half spacing should be adopted or typing the matter under this head. Standard symbols, abbreviations etc. should be used.

3.8       Chapters  – The chapters may be broadly divided into 3 parts  (i)  Introductory  chapter,   (ii) Chapters developing the main theme of the project work  (iii) and Conclusion.

            The main text will be divided into several chapters and each chapter may be further divided into several divisions and sub-divisions.

v    Each chapter should be given an appropriate title.

v    Tables and figures in a chapter should be placed in the immediate vicinity of the reference where they are cited.

v    Footnotes should be used sparingly. They should be typed single space and placed directly underneath in the very same page, which refers to the material they annotate.

3.9       Appendices – Appendices are provided to give supplementary information, which is included in the main text may serve as a distraction and cloud the central theme.

·                     Appendices should be numbered using Arabic numerals, e.g. Appendix 1, Appendix 2, etc.

·                     Appendices, Tables and References appearing in appendices should be numbered and referred to at appropriate places just as in the case of chapters.

·                     Appendices shall carry the title of the work reported and the same title shall be made in the contents page also.

3.10     List of References –The listing of references should be typed 4 spaces below the heading “REFERENCES” in alphabetical order in single spacing left – justified. The reference material should be listed in the alphabetical order of the first author. The name of the author/authors should be immediately followed by the year and other details.

A typical illustrative list given below relates to the citation example quoted above.

REFERENCES

1.         Ariponnammal, S. and Natarajan, S. (1994) ‘Transport Phonomena of Sm Sel – X Asx’, Pramana – Journal of Physics Vol.42, No.1, pp.421-425.

2.         Barnard, R.W. and Kellogg, C. (1980) ‘Applications of Convolution Operators to Problems in Univalent Function Theory’, Michigan Mach, J., Vol.27, pp.81–94.

3.         Shin, K.G. and Mckay, N.D. (1984) ‘Open Loop Minimum Time Control of Mechanical Manipulations and its Applications’, Proc.Amer.Contr.Conf., San Diego, CA, pp. 1231-1236.

3.10.1    Table and figures - By the word Table, is meant tabulated numerical data in the body of the project report as well as in the appendices.  All other non-verbal materials used in the body of the project work and appendices such as charts, graphs, maps, photographs and diagrams may be designated as figures.

4.         TYPING INSTRUCTIONS:

                                                                                                                                                                                                                                                                                                                                                                                                                   

            The impression on the typed copies should be black in colour.

            One and a half spacing should be used for typing the general text. The general text shall be typed in the Font style ‘Times New Roman’ and Font size 14.

             

* * * * *

   

 

 

APPENDIX 1

(A typical Specimen of Cover Page & Title Page)

<Font Style Times New Roman – Bold>

TITLE OF PROJECT REPORT

<Font Size 18><1.5 line spacing>

A PROJECT REPORT

<Font Size 14>

Submitted by

<Font Size 14><Italic>

NAME OF THE CANDIDATE(S)

<Font Size 16>

in partial fulfillment for the award of the degree

of

<Font Size 14><1.5 line spacing><Italic>

NAME OF THE DEGREE

<Font Size 16>

IN

BRANCH OF STUDY

<Font Size 14>

NAME OF THE COLLEGE

<Font Size 14>

ANNA UNIVERSITY : CHENNAI 600 025

<Font Size 16><1.5 line spacing>

MONTH & YEAR

<Font Size 14>

SPECIMEN

SOME PERFORMANCE ASPECTS CONSIDERATIONS OF A CLASS OF ARTIFICIAL NEURAL NETWORK

A PROJECT REPORT

Submitted by

SANDHYA. A

GAYATHRI.R

in  partial  fulfillment  for  the  award  of  the  degree

of

BACHELOR OF ENGINEERING

in

 INSTRUMENTATION AND CONTROL ENGINEERING

XXX ENGINEERING COLLEGE, KANCHEEPURAM

ANNA UNIVERSITY:: CHENNAI 600 025

 

 

MAY 2005

APPENDIX 2

(A typical specimen of Bonafide Certificate)

<Font Style Times New Roman>

ANNA UNIVERSITY : CHENNAI 600 025

<Font Style Times New Roman – size -18>

BONAFIDE CERTIFICATE

<Font Style Times New Roman – size -16>

<Font Style Times New Roman – size -14>

Certified that this project report “……….TITLE OF THE PROJECT……………..”

is the bonafide work of “…………..NAME OF THE CANDIDATE(S).…………”                                           who carried out the project work under my supervision.

<<Signature of the Head of the Department>>                      <<Signature of the Supervisor>>

  SIGNATURE                                                                         SIGNATURE

  <<Name>>                                                                            <<Name>>                            

 HEAD OF THE DEPARTMENT                                                   SUPERVISOR

                                                                                                                                   

                                                                                                 <<Academic Designation>>

<<Department>>                                                                     <<Department>>

<<Full address of the Dept & College >>                             <<Full address of the Dept & College >>

APPENDIX 3

(A typical specimen of table of contents)

<Font Style Times New Roman>

TABLE OF CONTENTS

CHAPTER NO.                                            TITLE                                                PAGE NO.

                                               ABSTRACT                                                                          iii           

                                               LIST OF TABLE                                                                xvi

                                               LIST OF FIGURES                                                           xviii

                                               LIST OF SYMBOLS                                                        xxvii

         1.                                 INTRODUCTION                                                                  1

                                        1.1         GENERAL                                                                 1

                                              1.2         . . . .  . . . . . . . . .                                                          2

            1.2.1        General                                                       5

                                    1.2.2     . . . . . . . . . . .                                                12

                                                  1.2.2.1 General                                            19

                                                                          1.2.2.2  . . . . . . . . . .                                     25     

                                      1.2.2.3  . . . . . . . . . .                                     29

                        1.2.3    . . . . . . . . . . . .                                                30

                                            1.3           . . . . . . . . . . .. . . . . . .                                                 45

                                            1.4           . . . . . . . . . . . . . . . . . .                                                58

          2.                                 LITERATURE REVIEW                                                     69

                                      2.1           GENERAL                                                                 75

2.2              . . . . . . . . . .                                                     99

2.2       …………….                                                 100

EC 2048 Telecommunication system modeling and Simulation syllabus

EC2048 TELECOMMUNICATION SYSTEM MODELING AND SIMULATION
L T P C
3 0 0 3
UNIT I SIMULATION METHODOLOGY 9
Introduction, Aspects of methodology, Performance Estimation, Sampling frequency,
Low pass equivalent models for bandpass signals, multicarrier signals, Non-linear and
time varying systems, Post processing, Basic Graphical techniques and estimations
UNIT II SIMULATION OF RANDOM VARIABLES RANDOM PROCESS 9
Generation of random numbers and sequence, Guassian and uniform random numbers
Correlated random sequences, Testing of random numbers generators, Stationary and
uncorrelated noise, Goodness of fit test.

UNIT III MODELING OF COMMUNICATION SYSTEMS 9
Radio frequency and optical sources, Analog and Digital signals, Communication
channel and models, Free space channels, Multipath channel and discrete channel
noise and interference.
UNIT IV ESTIMATION OF PERFORMANCE MEASURE FOR SIMULATION 9
Quality of estimator, Estimation of SNR, Probability density function and bit error rate,
Monte Carlo method, Importance sampling method, Extreme value theory.
UNIT V SIMULATION AND MODELING METHODOLOGY 9
Simulation environment, Modeling considerations, Performance evaluation techniques,
error source simulation, Validation.
TOTAL = 45 PERIODS
TEXTBOOK
1. MC.Jeruchim, P.Balaban and Sam K Shanmugam, Simulation of communication
Systems: Modeling, Methodology and Techniques, Plenum Press, New York, 2001.
REFERENCES
1. Averill.M.Law and W.David Kelton, Simulation Modeling and Analysis, McGraw-Hill
Inc., 2000.
2. Geoffrey Gorden, System Simulation, 2
3. W.Turin, Performance Analysis of Digital Communication Systems, Computer
Science Press, New York, 1990.
4. Jerry banks and John S.Carson, Discrete Event System Simulation, Prentice Hall of
India, 1984.
5. William H. Tranter, K. Sam shanmugam, Theodore s. Rappaport, K.Kurt L.Kosbar,
Principles of Communication Systems Simulation, Pearson Education (Singapore)
Pvt Ltd, 2004.nd Edition, Prentice Hall of India, 1992.

EC2053 Engineering Acoustics syllabus

EC2053 ENGINEERING ACOUSTICS L T P C3 0 0 3
  
UNIT I ACOUSTICS WAVES 9 
Acoustics waves - Linear wave equation - sound in fluids - Harmonic plane waves -Energy density - Acoustics intensity - Specific acoustic impedance - spherical waves -Describer scales.Reflection and Transmission:oblique incidence - method of images.Transmission from one fluid to another normal 
UNIT II RADIATION AND RECEPTION OF ACOUSTIC WAVES 9 
Radiation from a pulsating sphere - Acoustic reciprocity - continuous line source -radiation impedance - Fundamental properties of transducers.Absorption and attenuation of soundAbsorption from viscosity - complex sound speed and absorption - classical absorptioncoefficient 

UNIT III PIPES RESONATORS AND FILTERS 9 

Resonance in pipes - standing wave pattern absorption of sound in pipes - longwavelength limit - Helmoltz resonator - acoustic impedance - reflection and transmissionof waves in pipe - acoustic filters - low pass, high pass and band pass.Noise, Signal detection, Hearing and speechNoise, spectrum level and band level - combing band levels and tones - detectingsignals in noise - detection threshold - the ear - fundamental properties of hearing -loudness level and loudness - pitch and frequency - voice

 UNIT IV  ARCHITECTURAL ACOUSTICS: 9

 Sound in endosure - A simple model for the growth of sound in a room - reverberationtime - Sabine, sound absorption materials - measurement of the acoustic output ofsound sources in live rooms - acoustics factor in architectural design.Environmental Acoustics:Weighted sound levels speech interference - highway noise - noise induced hearingloss - noise and architectural design specification and measurement of some isolationdesign of portions. 

UNIT V TRANSDUCTION 9 

Transducer as an electives network - canonical equation for the two simple transducerstransmitters - moving coil loud speaker - loudspeaker cabinets - horn loud speaker,receivers - condenser - microphone - moving coil electrodynamics microphonepiezoelectric microphone - calibration of receivers. 
TOTAL = 45 PERIODS 
TEXT BOOK: 
1. Lawrence E.Kinsler, Austin, R.Frey, Alan B.Coppens, James V.Sanders,Fundamentals of Acoustics, 4th edition, Wiley, 2000.REFERENCE:1. L.Beranek, "Acoustics" - Tata McGraw-Hill