EE6352 Electrical Engineering and Instrumentation April May 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 77128
B.E./ B. TECH DEGREE EXAMINATION,APRIL/MAY-2015
Third semester
Electronics and communication Engineering
EE 6352- ELECRICAL ENGINEERING AND INSTRUMENTATION
(Regulation 2013)
Time- Three hour
Maximum mark-100
Answer all questions

PART A-10X2=20marks

1. Mention the advantages of star and delta system?

2. A 20V DC motor has an armature resistance of 0.06Ω and serious field resistance of 0.04Ω. If the motor input is 20 kw, Find the back emf of the motor and power developed in armature.

3. Distinguish between core and shell type transformer.

4. What is an deal transformer and how does it differ from a practical transformer.

5. Mention the characteristic features of synchronous motor?

6. Compare slip ring and squirrel cage type rotor.

7. A thermistor  has a resistance tamperature coefficient ß of -5%/0c . If the resistance of the thermistor is 100Ω at 250c,what is the resistance as at 350c?

8. What is piezoelectric effect?

9. Compare analog and digital instruments.

10. Write the advantages and disadvantages of Anderson bridge?

Part B-5X16=80 marks

11.(a)(i) Explain the internal and external characteristics of DC generator.
(ii) A 10kw 250v, DC shunt generator is driven at 1000rpm. Armature circuit resistance is 0.15 Ω and the field current is 1.64 A when the terminal voltage is 250V. Rotational losses are to be 540W. Find at rated load armature induced emf, developed torque and efficiency.
(or)
(b)(i) Explain the characteristics of DC shunt and serious motor.
(ii) A 250V DC shunt motor has an armature resistance of 0.5Ω and a field resistance of 250Ω. When driving a constant load at 600rpm of the motor draws 21A. What will be the new speed of the motor if an additional 250Ω resistance is inserted in the field circuit?

12.(a)(i)A 20 KVA single phase transformer designed for 2000/200 V has the following constant: R1=2.5Ω,X1=8 Ω,R2=0.04 Ω and X2=0.07 Ω.Calculate the approximate value of the secondary terminal voltages and % regulation at full load and 0.8.p.f.  lagging When primary applied voltage is 2000V.
(ii) Find “all day”efficiency  of a transformer having maximum efficiency  of 98% at 15KVA at unity power factor and loaded as follow:
12 hours- 2kw at 0.5p.f lag
6 hours- 12kw at 0.8p.f lag
6 hours- at no load
(or)
(b)(i) Deduced the equivalent circuit of transformer.
(ii)A 1100/110V,22KVA single phase transformer has primary resistance and reactance 2 Ω and 5Ω respectively. The secondary resistance and reactance are  0.02Ω and 0.045Ω respectively. Calculate:
1. Equation resistance and reactance of secondary referred to primary.
2. Total resistance and reactance referred to primary.
3. Equation resistance and reactance of primary referred to secondary.
4. Total resistance and reactance referred to secondary.
5. Total copper loss.

13. (a)(i) Give the constructional details of rotor of both salient pole and cylindrical rotor synchronous machines.
(ii) Explain the working principle of synchronous motor and also explain any two method of starting of synchronous motor.
(or)
(b)(i)Explain double field revolving theory of single phase induction motor.
(ii) Explain the working of split phase capacitor start motor.
(iii) A 3 phase induction motro runs at 1140rpm at full load when supplied  with power from a 60 Hz , 3 phase line calculate the number of poles and full load of speed, Frequency of rotor voltage.

14.(a)(i) Explain the construction and principle of working of a LVDT. Explain how the magnitude and direction of the displacement of core of LVDT detected?
(ii) Describe the working and construction of RTD. Describe the material used for RTD along with their properties.
(or)
(b)(i)Define the following static characteristics:
1. Static sensitivity
2. Linearity
3. precision
4. Accuracy
5. Threshold
(ii) Discuss the error in measurement.
15.(a)(i) Explain the construction and working of digital mulitmeter with all the self diagnostic features.
(ii) Explain the working of ramp type digital voltmeter.
(or)
(b)(i) Derive the bridge balance equation of Schering bridge.
(ii) How is low resistance measured using Kelvin double bridge?

Anna University CE2451-ENGINEERING ECONOMICS AND COST ANALYSIS 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71267
B.E., B. TECH DEGREE EXAMINATION,APRIL/MAY-2015
Eight semester
Civil Engineering
CE 2451/ CE 81/ 10177 GE 009- ENGINEERING ECONOMICS AND COST ANALYSIS
(Regulation 2008/2010)
(Common to PTCE 2451- Engineering Economics and cost analysis for B.E. (part-time)- seventh semester civil Engineering Regulation 2009)
Time- Three hour
Maximum mark-100
Answer all questions

PART A-10X2=20marks

1. How is wealth classified?

2. Distinguish between economic decision-making and technical decision-making.

3. Draw a typical ‘less elastic demand curve’.

4. Define elasticity of supply.

5. Mention the limitation of credit creation.

6. What do you under stand by mixed economy?

7. What are the internal source of funds?

8. List the different types of assets used for preparing a balances sheet?

9. What is meant by ‘going rate pricing’?

10. What is safety margin?

Part B-5x16=80 marks

11.(a) (i) Discuss the scope of managerial economics.
(ii) Compare the advantages and disadvantages of small and lager scale production.
(or)
(b)(i) Define Law of diminishing marginal utility. Explain with an example.
(ii) Explain the features of factors of production.
12.(a)(i) Explain the method of measuring the elasticity of demand.
(ii) Describe the conditions of various market forms.
(or)
(b) Describe the time elements in arriving at market price, normal price, sub normal price and secular price.
13.(a)(i) Illustrate the various credit instruments.
(ii) Elaborate the method of control of credit.
(or)
(b)Explain the merits and demerits of private sector organizations.

14.(a) What are the sources of short-term and long term funds? Bring out the merits and limitations of each source.
(or)
(b) What are the uses of fund flow statement? Prepare a typical fund flow statement?

15.(a)(i)Describe the NPV method of project appraisal technique.
(ii) Discuss the importance of studying the short run and long run cost output relationship.
(or)
(b)From the following particular calculate:
(i) Contributed
(ii) P/V radio
(iii) Break even point in unit and in rupees
(iv) What will be the selling price per unit if the Break even point is brought down to 25,000 unit?
Particulars                          Amount
Fixed expenses                 1,50,000
Variable cost per unit             10
Selling cost per unit                15

Anna University BA9264-ENTREPRENEURSHIP DEVELOPMENT 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 40230
M.B.A. DEGREE EXAMINATION,APRIL/MAY-2015
Elective
BA 9264/BA 964/UBA 9169/10488 MBE 32-ENTREPRENEURSHIP DEVELOPMENT
(Regulation 2009/2010)
Time- Three hour
Maximum mark-100
Answer all questions

PART A-10X2=20marks

1. Distinguish between entrepreneurs and investors.

2. How is entrepreneurship a gap filling function?

3. What are the major categories of entrepreneurial function?

4. Write a short notes on Managerial competence.

5. Why is a  business plan important to the entrepreneur?

6. What are proformas of cash flow statement and balances sheet?

7. Brief single proprietorship as from of ownership of a new venture.

8. Write a short notes on NABART.

9. Suggest as to how and where the signals of sickness would be detected?

10. What should be covered under the viability study?

Part B-5x16=80 marks

11.(a)Discuss the role of an innovating entrepreneur in economic development of a country?
(or)
(b)(i) Explain the characteristics of a successful entrepreneur.
(ii) Discuss the entrepreneurial process.

12.(a)(i)Explain with example the role of social factors in the analysis of the external environment of a business.
(ii) Give an account of the evolution of family ventures in India as the oldest from of entrepreneurship, and also in this context examine the role played by family business in India.
(or)
(b) ‘SSI s  in India enjoyed protection since independence but now, the governmental policy is toward promotion in place of protection. In the light of the above statement.
(i) Out line the major problems of SSI s  in India.
(ii) State the initiatives taken by the government to make SSI s  more competitive in a globalized world.

13.(a) Explain the various sources of ideal for new ventures. Why is a business plan important to the entrepreneur?
(or)
(b) Discuss the various factors influencing capital structure. Explain the various types of feasibility analysis?

14. (a) Write notes on:
(i) SIDPI
(ii)NEITCO
(iii)TIE
(iv)MSMEDI
(or)
(b) What is operational plan? Discuss plant location and layout and their important in operational plan.

15.(a) Despite the fact that various method are available for detecting sickness, why could sickness not be detected in India industries at an early stage?
(or)
(b) What should be covered under the viability study? Suggest various measures to rehabilitate sickness of small-scale industries?

Anna University BA 7103- ECONOMIC ANALYSIS FOR BUSINESS 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 10329
M.B.A. DEGREE EXAMINATION,APRIL/MAY-2015
First semester
BA 7103- ECONOMIC ANALYSIS FOR BUSINESS
(Regulation 2013)
Time- Three hour
Maximum mark-100
Answer all questions

PART A-10X2=20marks

1. Identify any two factors influencing the economic growth of a country.

2. What is micro economics?

3. What is meant by price elasticity demand?

4. State the supply function?

5. What is meant by price discrimination?

6. What is monopolistic competition?

7. What is net national product?

8. What is deflation?

9. What are money market instruments?

10. State any two causes of inflation.

Part B-5X16=80 Marks

11.(a) Destinguish between productive efficiency and economic efficiency. Elaborate the various determinants of the economic efficiency of a nations.
(or)
(b) Bring out the role of the government in the promotion of economic growth in a developing country like India.

12.(a)  Explain the nature and managerial uses of the production function.
(or)
(b) Economics of scale may be either external or internal; they may be technical, managerial, financial or risk bearing-Elaborate.

13.(a) How does the equilibrium of the firm under perfect competition differ from that a monopolist? Explain the conditions for the establishment of firm’s equilibrium under perfect competition.
(or)
(b) Define Oligopoly. Explain how price and out put decision are taken under condition of Oligopoly.

14. (a)Explain the various macro economic factors influencing the performances of an economy.
(or)
(b) What are the objectives of fiscal policy? Explain the various instruments of fiscal policy.

15.(a) What is the inflation? Analyes  its impact on the various sections of the society.
(or)
(b) Given on account of:
(i) Long run supply curve
(ii) Okun’s law
(iii) Money market equilibrium
(iv) Monetary policy.

Anna University IT 2031- ELECTRONIC COMMERCE 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71744
B.E,B.TECH DEGREE EXAMINATION,APRIL/MAY-2015
Seventh semester
Information technology
IT 2031/ TI 701/ 10177 ITE 23- ELECTRONIC COMMERCE
(Regulation 2008/2010)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20marks

1 .What are the key difference between traditional commerce and E. commerce?

2. What are the advantages of making web transactions of a company?

3. What is SGML?

4. What is the difference between HTML and XML?

5. Mention some protocols used in web services.

6. What is EC software?

7. Define E-cash and list the difference types of e-cash.

8. List four security requirements for safe e-payment system.

9. What is an intelligent agent?

10. Mention the advantages of online marketing.

Part B-5x16=80 marks

11.(a) Explain in detail role of internet and WWW in the growth of E- commerce.
(or)
(b) Explain in detail about the strategic business and industry value chain of E- commerce.

12. (a)(i) Describe in detail about the web client/server architecture.
(ii)  Write short notes on Intranets.
(or)
(b)(i) Describe in detail the TCP/IP protocol suite used in internet services.
(ii) Write short notes on extranets.

13.(a) (i) Explain in detail the step involved in web hosting for an industry.
(ii) Explain the various performance evaluation metric to evaluate the web server.
(or)
(b)(i) Explain in detail the various web server software and tools used in
E. Commerce.
(ii) Write short on search engines.

14.(a)(i) List out the E. commerce threats and provides suitable solution to protect the client computer from the threats.
(ii) Write short notes on copy right and intellectual property rights.
(or)
(b)(i) Explain in detail about the RSA algorithm.
(ii) Compare and contrast symmetric key encryption and public key encryption with an example to achieve cryptography.

15.(a) Explain in detail about the various website design issues.
(or)
(b)(i) Explain in detail about the various types of web based marketing strategies.
(ii) Describe in detail the various means of an line advertisement models.

Anna University CS9264- DATA WAREHOUSING AND DATA MEANING 2015 QP

Anna University Previous Years Question Papers
Question paper code: 41225
M.E,M.TECH DEGREE EXAMINATION,APRIL/MAY-2015
Elective
Computer science and Engineering
CS 9264/ CS 964/ 10244 CSE 51- DATA WAREHOUSING AND DATA MEANING
(Common to sixth semester information technology)
(Regulation 2008/2010)
 (Common to M.E. software Engineering and M.Tech-Information technology/ M.E Networking and Internet Engineering/ M.E. software Engineering/M. Tech multimedia Technologies)
(Regulation 2009/2010)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20marks

1. What is a data warehousing?

2. Distinguish between OLTP and OLAP.

3. Define noisy data. Give an example

4. Differentiate concept description from OLAP.

5. Define SVM.

6. How do you integrate data warehousing technique with decision tree induction?

7. List out the applications of cluster analysis.

8. What is constraint based cluster analysis.

9. Write the difference between time-series database and sequence database.

10. How does latent semantic indexing reduced the size of the term “Time frequency matrix”.

Part B-5X16=80 marks
11.(a)(i) Explain a components of a data warehousing system.
(ii) Explain the mapping methodology from data ware housing to a multiprocessor
Architecture.
(or)
(b)Explain OLAP and multidimensional data analysis.

12.(a) Explain various data mining functionalities.
(or)
(b)Define association rule mining and explain the single dimensional Boolean association rule from transactional databases?

13(a) With an example, discuss Bayesian classification.
(or)
(b)Discuss basic principle of support vector machine and draw its parallel hyper-plant between two classes.

14.(a) Explain briefly about k-Means algorithm with suitable example.
(or)
(b) Write about outlier analysis in detail.

15.(a) What is spatial database? Explain the method of mining spatial databases?
(or)
(b)(i) Discuss the social impacts of data mining.
(ii) Discuss the method of mining text databases.

Anna University CS 2032- DATA WAREHOUSING AND DATA MEANING 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71356
B.E,B.TECH DEGREE EXAMINATION,APRIL/MAY-2015
Seventh semester
Computer science and Engineering
CS 2032/ CS 701/ 10144 CSE 32- DATA WAREHOUSING AND DATA MEANING
(Common to sixth semester information technology)
(Regulation 2008/2010)
 (Common to PTCS 2032-Data warehousing and data meaning for B.E. (part-time) sixth semester-Computer science and Engineering-(Regulation 2008/2010)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20marks

1. Why data preprocessing is an important issues for both data warehousing and data mining?

2. What is data warehouse and data metadata?

3. Where a multidimensional data model is typically use?

4. What is multi-relation OLAP?

5. List out the data mining functionalities?

6. Why data cleaning routines are needed?

7. Distinguish between classification and clustering.

8. What is a decision tree?

9. Let x1=¬{1,2}and x¬2={3,5} represent two points. Calculate the Manhattan distance between the two points?

10. How outliers may be detected by clustering?

Part B-5x16=80 MARKS

11.(a)Explain the three tier architecture of a data warehouse with diagrammatic illustration.
(or)
(b)Explain star schema and snowflake schema with example and diagrammatic illustration.

12.(a) Highlight the features of cognos impromptu.
(or)
(b) List and explain the typical OLAP operations for multidimensional data with suitable example and diagrammatic illustration.

13.(a) List and explain about the primitives involved in specifying a data mining task.
(or)
(b)Explain with a diagrammatic illustration for the steps involved in the process of knowledge discovery from databases.

14.(a) Apply the Apriori algorithm for discovering frequent item sets to the following data set:
Trans ID             Items purchased
        101                Litchi, Hill banana, straw berry
        102 Litchi, Passion Fruit
        103                Passion Fruit, Tomato
        104               Litchi, Hill banana, straw berry
        105               Pears, straw berry
        106 Pears
  107 Pears, Passion Fruit
  108                Litchi, Hill Banana, Water melon, straw berry
  109 Water melon, Tomato
  110 Litchi, Hill Banana
Use of 0.3 for the minimum support value .
(or)
(b)Explain the working of the naive Bayesian classifier with an example.

15.(a)(i) How agglomerative hierarchical clustering works? Explain with an example.
(ii) How divisible hierarchical clustering works? Explain with an example.
(or)
(b)Consider five points {X1,X2,X3,X4,X5} with the following coordinate as a two dimensional samples for clustering:
X1=(0,2),X2=(1,0),X3=(2,1)X4=(4,1)and X¬5=(5,3)
Illustrate the K-means algorithm on the above data set. The required number of clusters is two and initially, clusters are formed from random distribution of samples: C1{X1, X2, X4} and C1{X3, X5}.

Anna University ME2352-DESIGN OF TRANSMISSION SYSTEM 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71860
B.E,B.TECH DEGREE EXAMINATION,APRIL/MAY-2015
Sixth semester
Mechanical Engineering
ME 2352/ME 61/ ME 1352/ 10122 ME 603-DESIGN OF TRANSMISSION SYSTEM
(Common to Mechanical and automobile Engineering)
(Regulation 2008/2010)
 (Common to PTEM 2352-Design of transmission system for B.E. (part-time) Fifth and sixth semester Mechanical Engineering (Regulation 2008/2010))
Use of Approved  Design data books permitted
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20marks

1. In what way the timing belts are superior to ordinary

2. What is meant by “Chordal action of chain”? Also name a company that produces driving chain?

3. State the law of gearing.

4. What is pressure angel? What is the effect of increase in pressure angel?

5. State the advantages of  harring bone gear.

6. What is a Zerol bevel gears?

7. Draw the ray diagram for a six speed gear box.

8. In which gear-derive, self-locking is available?

9. If a multi disc clutch has a 6 discs in driving shaft and 7 discs in driving shaft, then how many number of contact surfaces it will have?

10. Why in automobiles, braking action when travelling in reserve is not as effectives as when moving forward?

Part- B 5x16=80 marks
11.(a) Design a V-belt drive and calculate the actual belt tensions and average stress for the following data. Power to be transmitted=7.5kw, Speed of deriving wheel = 1000rpm, Speed of deriving wheel = 300rpm, diameter of driven pulley=500mm, diameter of driven pulley=150mm and center distance=925mm.
(or)
(b)A 7.5kw electric motor running at 1400rpm is used to derive the input shaft of the gearbox of a machine. Design a suitable roller chain to connect the motor shaft to the gear box to given an exact speed radio 0f 10:1. The center to center  distances of the shaft to be approximately 600mm.

12.(a) Design a super gear drive to transmit 8kw at 720rpm and the radio is 2. The pinion and wheel are made of the surface hardened carbon steel with 55 RC and core hardness less than 350 BHN. Ultimate strength is 720N/mm2 and yield strength is 360N/mm2.
(or)
(b)Design helical gear drive to transmit the power of 14.7kw. Speed radio 6, pinion speed 1200rpm, helix angel is 250.Select suitable materials and design the gear.

13.(a) Design a pair of straight bevel gears for two shafts whose axis are at right angels. The power transmitted is 25kw. The speed of pinion is 300rpm and of a gear is 120rpm.
(or)
(b)Design a worm gear drive to transmit 22.5kw at a worm speed of 1440rpm. Velocity radio is 24:1. An efficiency of at least 85% is desired. The temperature raise should be restricted to 400 C. Determine the required cooling area.

14.(a) Design a nine speed gear box for a machine to provide speed ranging from 100rpm to 1500rpm. The input is from a motor of 5kw at 1440rpm. Assume any alloy steel for the gears.
(or)
(b) Design a 12 speed gear box for a lathe. The minimum and maximum speed are 100 to 1200rpm.Power is 5kw from 1440rpm induction motor.

15.(a) A power of 20kw is to be transmitted through a cone clutch at 500rpm. For uniform wear condition, find the main dimension of clutch and shaft. Also determine the axial force required to engage the clutch. Assume coefficient of friction as 0.25, the maximum normal pressure on the friction surface is not to exceed 0.08MPa and take the design stress for the shaft materials as 40MPa.
(or)
(b) Design a differentiate band brake for a winch lifting a load 20kn through a steel wire rope wound around a barrel of 600mm diameter. The break drams, keyed to the barrel shaft, 800mm diameter and the angel of the lap of the bond over the drams is about 2400. Operating arms of the break are 50mm and 250mm. The length of operating lever is 1.6m.

Anna University CS 2403-DIGITAL SIGNAL PROCESSING 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71399
B.E,B.TECH DEGREE EXAMINATION, APRIL/MAY-2015
Seventh semester
Computer science and Engineering
CS 2403/ CS 73-DIGITAL SIGNAL PROCESSING
(Common to fifth semester-information technology)
(Regulation 2008)
(Also common to PTCS 2303-Digtal signal processing for B.E.(part-time)sixth semester Computer science and Engineering Regulation 2009 )
Use of relevant BIS standard and hand book is permitted.
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20marks

1. State sampling theorem.

2. What is quantization error?

3. Compute DFT of the signal x(n)=δ(n)

4. What is meant by radix-2 FFT?

5. What is meant by bilinear transformation method of designing IIR filter?

6. Draw the direct from realization of IIR system?

7. What is linear phase responsible of a filter?

8. State any two important properties of FIR filter?

9. Write the main application areas of speech coding.

10. What is adaptive filter?

PART B-4X16=80 MARKS

11.(a)(i) Find the convolution of given signal.
X(n)=3n u(-n) and h(n)=)(1/3)n u(n-2)
≤sequences h(n)={1,2,3,4}&x(n)={1,2,3}.
(or)
(b)Explain the process of analog to digital conversion of signal in terms of sampling, quantization and coding.

12(a) Find the 8point DFT of the sequence using radix-2 DIF algorithm
X(n)=10 ≤; n ≤2 =0; otherwise
(or)
 (b) Compute the 8point DFT of the sequence x(n)={1,-1,1,-1,0,0,0,0} using radix-2 DIF algorithm.

13.(a)Design a digital butter worth filter satisfying the constraints
0.707 ≤ H (e jw)  ≤1;0≤w ≤π/2
H (e jw)  ≤ 0.2 :3π/4≤ w≤π
-with T=1sec using bilinear transformation method.
(or)
(b)Obtain the direct from I, direct from II and cascade form realization of the following system function.
Y(n)=-0.1y(n-1)+ 0.2y(n-2)+3x (n)+3.6x(n-1)+0.6x(n-2)

14.(a) Discuss the design procedures of FIR filter using frequency sampling method.
(or)
(b)Design ideal differentiator with frequency responses
 H(ejw)=jw ;-π≤w≤π using Hamming window with N=7.

15.(a)(i) Discuss about multi rate signal processing.
(ii) Write about notes on speech compression.
(or)
(b) Discuss the role of DSP in image enhancement with an example.