Electrical Machines 1 Anna University Question papers For 4th Sem EEE - anna univ Question paper

Electrical Machines 1 Anna University Question papers For 4th Sem EEE - anna univ Question paper

Electrical Machines 1 Question papers Anna university

Electrical Machines i Question paper for anna univ 4th semester eee students , electrical machines 1 anna university question paper , model question paper, previous year question paper is the most search by 4th semester EEE students

Electrical Machines i Question paper EE2251 4th sem EEE

University : Anna University

Subject : EE2251 Electrical Machines I

Departments : 4th Sem EEE

Regulation : 2008

Question Paper : Nov / Dec 2013 Model Question Paper

Semester : EEE 4th semester Question papers

electrical machines i Question papers for 4th semester eee students 

Electrical Machines i Question paper Download For 4th sem

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Electronics And Microprocessors Question Papers  

University : Anna University

Subject : ME2255 Electronics And Microprocessors 

Departments : 4th sem mech for be/btech

Regulation : 2008

Question Paper : Nov / Dec 2013 Model Question Paper

Semester : 4th semester mechanical question paper

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Principles Of Communication Question Paper for Anna Univ IT Department

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2009 

Third Semester 

Information Technology 

IT 2202 � PRINCIPLES OF COMMUNICATION 

(Regulation 2008) 

Time : Three hours Maximum : 100 Marks 

Answer ALL Questions 

PART A � (10 � 2 = 20 Marks) 

1. Define amplitude modulation. 
2. What is modulation index? 
3. Why is ASK called as ON-OFF keying? 
4. What are the differences between QASK and QPSK? 
5. Define sampling rate? 
6. What is ISI? 
7. Define Pseudonoise sequence? 
8. What are the different types of multiple access techniques? 
9. Define Kepler�s three laws of planetary motions. 
10. What are the losses encountered by optical fiber? 

PART B � (5 � 16 = 80 Marks) 

11. (a) (i) Write short notes on : 
 (1) AM voltage distribution. (4) 
 (2) AM power distribution. (4) 
 (ii) An audio frequency signal 10 sin 2p �500t is used to amplitude 
modulate a carrier of 50 t 5 sin 2p �10 . Calculate 
 (1) Modulation index (2) 
 (2) Side band frequencies (2) 
 (3) BW required (2) 
 (4) Total power delivered to the load of 600 O. (2) 
Or 
(b) (i) Compare FM and AM. (12) 
 (ii) The phase deviation constant in a phase modulation system is 
K = 0.01 rad/v. Calculate the maximum phase deviation when a 
modulating signal of 10 V is applied? (4) 
12. (a) (i) Explain the principle of FSK transmitter and receiver. (10) 
 (ii) Write short notes on the spectrum and bandwidth of FSK. (6) 
Or 
(b) (i) Compare the various types of digital modulation techniques. (8) 
 (ii) Explain the eyepattern in base band digital transmission with a 
neat diagram. (8) 
13. (a) (i) Explain the elements of PCM system with a neat block diagram. (12) 
 (ii) What is companding? (4) 
Or 
(b) (i) Find the signal amplitude for minimum quantization error in a 
delta modulation system if step size is 1 volt having repetition 
period 1 ms. The information signal operates at 100 Hz. (4) 
 (ii) Describe the operation of DPCM system with a relevant diagram.(12) 
14. (a) (i) Write a short note on frequency hop spread spectrum. (10) 
 (ii) Explain the applications of spread spectrum techniques. (6) 
Or 
(b) (i) Give a detail account of the different types of multiple access 
techniques. (10) 
 (ii) Compare TDMA and CDMA. (6) 
15. (a) (i) Discuss briefly the basic satellite communication system. (8) 
 (ii) Write short notes on the LEO and GEO orbits. (8) 
Or 
(b) Enumerate the elements of an optical fiber transmission link. (16) 

Strength Of Materials Question Papers ME2254 Anna University Question paper 4th sem mech

Strength Of Materials Question Papers ME2254 Anna University Question paper 4th semester mechanical Engineering

Students here You Can Find Anna University Question paper for 4th sem mechanical Question Paper - Previous Year , Model question papers for second year mechanical engineering students, Strength Of Materials Question Papers is very important for 4th semester anna university mechanical engg students for their May June 2013 Examination

Strength Of Materials SOM Question Paper Download For 4th sem

University : Anna University

Subject : ME2254 Strength of Materials ( SOM )

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Regulation : 2008

Question Paper : Nov / Dec 2013 , May / June 2013 Model Question Paper

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University : Anna University

Subject : ME2253 Engineering Materials And Metallurgy

Departments : 4th sem mechanical question papers

Regulation : 2008

Question Paper : Nov / Dec 2013 ,April /  May / June  2013 Model Question Paper

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University : Anna University

Subject : ME2252 Manufacturing Technology II

Departments : 4th semester mechanical 

Regulation : 2008

Question Paper : Nov / Dec 2013 May / June 2013 Model Question Paper

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Heat and Mass Transfer Question papers 4th sem mech Anna University Question paper

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University : Anna University

Subject : ME2251 Heat and Mass Transfer

Departments : 4th sem mechanical engineering

Regulation : 2008

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University : Anna University

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Anna University Question papers Polymer Chemistry 2013

 Anna University Question papers Polymer Chemistry 2013

Anna University , Chennai

B. E DEGREE EXAMINATIONS 2011 

(Textile Engineering/ Textile Technology) 

Polymer Chemistry 

Time: 3 Hrs Max. Marks: 100 

Answer all Questions 

PART � A (10 � 2 = 20 Marks) 

1. State the functionality of the monomers, styrene, 
pentaerythritol, glycerol and 1,4�butane diol. 
2. State two important criteria for a polymer to form a fibre. 
3. Compare the molecular weight of polymer and its 
distribution in free radical bulk and solution polymerisation 
techniques. 
4. What is meant by critical miscle concentration? 
5. Explain what is meant by syndiotactic and isotactic 
polystyrene. 
6. What is meant by glass transition temperature? 
7. Why polyacrylonitrile cannot be prepared by bulk
polymerisation? 
8. What are the materials used for the manufacture of PET 
by melt polycondensation? 
9. What is the function of silicone oils when used as a 
compounding material for plastics? 
10. What is the function of UV�stabilisers added to plastics? 

PART B � (5 * 16 = 80 MARKS) 

11. Discuss with suitable examples the classification of 
polymers based on the following heads. 
(i) Source 
(ii) Thermal properties 
(iii) End applications. (16) 
12. (a) (i) Discuss suspension polymerisation technique in 
detail. (12) 
(ii) Compare the advantages and disadvantages of emulsion 
and suspension polymerisation techniques. (4) 
Or 
(b) (i) Compare addition polymerisation and condensation 
polymerisation with suitable examples. (8) 
(ii) Compare the advantages and disadvantages of bulk and 
solution polymerisation techniques. (8) 
13. (a) (i) Discuss the factors affecting crystallinity and 
crystallisability. (10) 
(ii) How does crystallinity affect the properties of polymers? 
(6) 
 Or (b) (i) Explain the various phase transitions of an amorphous 
and a semicrystalline polymer. (8) 
(ii) State with reasons which polymer has higher value in 
each of the following pairs of polymers. 
* Polystyrene or Poly ( �methyl styrene) 
* Poly (methacrylate) or Poly (butylacrylate) 
* Polyethylene terephthalate or Poly (bisphenol�A 
carbonate) 
* Nylon�6 or Nylon�11. (8) 
14. (a) (i) Describe the manufacture of polyurethane foams 
and explain the mechanisms of foam formation when water 
is used as a foaming agent. (10) 
(ii) How is PET manufactured and what is its uses? (6) 
 Or 
(b) (i) Describe the manufacture of polystyrene by bulk and 
emulsion polymerization techniques and state its properties 
and uses. (8) 
(ii) Explain the formation of carbon fibre with suitable 
reactions. (8) 15. (a) (i) State any five compounding materials with 
suitable examples added to plastics and explain their 
function. (10) 
(ii) Explain the technique by which continuous polymer films 
are obtained. (6) 
 Or 
(b) Write notes on any TWO of the following : 
(i) Nylon 6, 6. (8) 
(ii) Weight average molecular weight. (8) 
(iii) Solubility parameter. (8) 

Polymer Chemistry Anna University Previous Semester Question papers 2013