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Friday, July 31, 2015

EE6352 Electrical Engineering and Instrumentation April May 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 77128
Third semester
Electronics and communication Engineering
(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.
(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
(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.
(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.
(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.
(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
Eight semester
Civil Engineering
(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.
(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.
(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.
(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.
(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.
(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
(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?
(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.
(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?
(b) Discuss the various factors influencing capital structure. Explain the various types of feasibility analysis?

14. (a) Write notes on:
(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?
(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
First semester
(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.
(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.
(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.
(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.
(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.
(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
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.
(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.
(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.
(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.
(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.
(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 Previous Years Question Papers
Question paper code: 41225
Computer science and Engineering
(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
(b)Explain OLAP and multidimensional data analysis.

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

13(a) With an example, discuss Bayesian classification.
(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.
(b) Write about outlier analysis in detail.

15.(a) What is spatial database? Explain the method of mining spatial databases?
(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
Seventh semester
Computer science and Engineering
(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.
(b)Explain star schema and snowflake schema with example and diagrammatic illustration.

12.(a) Highlight the features of cognos impromptu.
(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.
(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 .
(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.
(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
Sixth semester
Mechanical Engineering
(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.
(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.
(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.
(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.
(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.
(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
Seventh semester
Computer science and Engineering
(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?


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}.
(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
 (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.
(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.
(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.
(b) Discuss the role of DSP in image enhancement with an example.

Anna University PEC Soil Mechanics Internal Test 2015 Question Paper

Anna University Previous Years Question Papers
Year/dept/Sem :II/civil(a & b)/Iv
Subject: Soil mechanics
Duration: 9A.M to10.40 A.M
Part A-5x2=10 marks
1. Why does dry density of soil decrease with increase in soil water content, When soil is compact on the wet side of optimum.
2. List the factor affecting compaction.
3. What is the significances of shrinkage limit.
4. Define density index.
5. Draw the three phase diagram of mass.

1. Derive all the function relationship between specific gravity, density, Degree of saturation in term of void radio.
2. A soil has void radio=0.72, moisture content=12% GS=2.7. Unit weight of water is 9.81 kn/m3. Determine its (a) Dry unit weight (b) Moist unit weight (c) Amount of water added per m3 to make it saturated.
3. Differentiate between
(i) Liquidity index and consistency index.
(ii)Flow index and consistency index.
(iii) Plasticity and consistency
(iv)Activity and sensitivity

4. The dry density of sand with porosity of 0.387 is 1600 kg/m3 . Find the void radio of the soil and the specific gravity of the soil solids. Take unit weight of water as 1000kg/m3.
5. The following index properties were determine for two soils A and  B.
Property                    Soil sample  A                 Soil sample   B
Liquid limit                  30%                                       52%
Plastic limit                  16%                                        19%
Natural water content   32%                                        40%
Flow index                    11%                                        06%

Which of these above soil sample.
(a) More plastic
(b) Better foundation materials on remoulding.
(c) Better shear strength as a function of water.
(d) Better shear strength at plastic limit.
(e) Classify the soil as per ISCS. Do this soils have organic matter.


Anna University Previous Years Question Papers
Question paper code: 71263
Seventh semester
Civil Engineering
(Regulation 2008/2010)
(IS 456-2000,IS 1905-1987,SP 16-1960  and IS:3370(part 2and 4)-1967design charts tables are permitted)
Use of relevant BIS standard and hand book is permitted.
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20marks

1. What is the structural action of
(a) Heel and
(b) Toe of a cantilever retaining wall

2. Why counter forts are provide in a counter forts retaining wall.

3. Why cover domes for a circular water tank is economical than a flat cover slab.

4. Why bracing are provided in the stagings of a water tank?

5. When a mat found action is restored to a structure?

6. What are the advantages of box culvert over slab culvert?

7. Why yield line theory for slab always yield upper bound solution?

8. Sketch an yield line pattern for a circular slab continuous over its edge supports?

9. Define slenderness radio of a masonry wall.

10. List out any two factors which affect the permissible stress of a masonry.

Part B- 5x16=80 marks
11.(a) Design a cantilever retaining wall to retain 5m of horizontal backfill.
The density of the soil is 17Kn / m2
Safe baring capacity of the soil=165 Kn / m2
Angel of internal friction of soil=250
The coefficient of friction between base slab and concrete=0.55
Use M20 concrete and Fe415 steel.
(b)(i) What are the design principle involved in the different components of a counter fort retaining wall.
(ii) Write down the steps involved in the design of counter fort retaining wall.

12.(a) Design and underground water tank 4m x10mx 3m deep. The sub soil consist of sand having angel of repose of 30 degree and saturated unit weight of 17Kn / m3 . The water table is likely to rise up to ground level. Use M20 concrete and HYST bars. Take unit weight of water as 9.81kn/m3 .

(b)A square elevated water tank 3m is open at top. Base of wall may be assumed as hinged. Use M25 concrete and Fe415steel. Design the wall along the horizontal direction.

13.(a) An intermediate flight of a staircase is support at only at the edge of landing (support-perpendicular to the direction of the flight). Height between landing is 1.5m. The flight has steps consist of 10 risers (each rise=150mm) and 9 treats (each treat=250mm). The steps are support on a waist slab. Landing is 1m width. Support width is 300mm each. Design the waist slab and loading for bending moment along. Use M20 concrete and Fe415 steel. Live load on stair is 3.0kn/m2  width of flight=1.5m.
(b)Design the R.C. wall 3m height, 4m width and 100mm thick to carry a factored load of 600kn/m using M 20 concrete and Fe415 steel.

14.(a) Design a rectangular slab 4mx6m which is simply support at the all the four edge at subjected to a services live load of 4 kn/m2. Assume µ=0.5, fck=20N/mm2, fy=415N/mm2.
(b)Consider a rectangular slab of 4m x 3m with one of its longer side free and other three side are simply supported. The reinforcement in the two perpendicular direction are such that Mx=10kn/m, My=15kn/m. Find the collapse load.

15.(a) Determine the allowable axial load on column 300mm x 60mm constructed in first class brick work in CM 1:6 using modular bricks 200mm x 10mm x 100mm the height of pier between the footing and top of slab is 5.2m. The strength of unit may be assumed as 10.5MPa.
(b)Write short notes on:
(i) Classification of walls.
(ii) Effective of length and effective height of walls.
(iii) Permissible stress in brick masonry.

Anna University CS 2056-DISTRIBUTED SYSTEM 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71365
Eighth semester
Computer science and Engineering
(Common to information technology)
(Regulation 2008/2010)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20

1. List the importance of middleware?

2. Distinguish between buffering and caching.

3. Define remote interface?

4. What is meant by scheduler activation?

5. List the function of automounter in UNIX.

6. Define directory services.

7. Why clock synchronization is necessary?

8. Give a formula for the maximum throughput of a mutual exclusion system in terms of synchronization delay.

9. What is false sharing?

10. Why is thrashing an important issues in DSM system?


11.(a) (i) Explain the challenges involved in building distributed system.
(ii) What factors affect the responsiveness of an application that accesses shared data managed by a server? Describe the remedies that are available and discuss the usefulness.
(b)(i) List the types of local resources that are vulnerable to an attack by an untrusted  program that is downloaded from a remote site and run in a local computer. Explain it.
(ii)Explain IPv6.

12.(a)(i) Explain how a forwarded observer may be used to enhance the reliability and performances of object interest in an event services.
(ii)Explain the remote procedure call (RPC) mechanism with with various functional of components.
(b)(i)Explain the factors that motivate the hybrid scheduling approach of the scheduling activations design.
(ii)Explain how a shared region could be used for a process to read the data written by the kernel.

13.(a)(i) Explain sun NFS.
(ii) Compare the undate semantics of UNIX when accessing local files with those of  NFS and AFS. Under what circumstances might client become aware of the differences?
(b)(i) What security issues are liable to be relevant to a directory service such as X.500 operating within an organization.
(ii) Explain DNS.

14.(a)(i) Explain snapshot algorithm with example.
(ii)Discuss about NTP.
(b)(i) Explain Ricart and Agrawala’s algorithm.
(ii) Show that Byzantine agreement can be reached for three generals, with one of them faulty, it the generals digitally sign their massage.

15.(a)(i) Discuss about design and implementation issues of DSM.
(ii)Describe sequential consistency DSM.
(b) Describe CORBA RIM and its services.

CS6302 Database Management Systems April May 2015 Question Paper

Anna University Previous Years Question Papers
Question Paper Code: 77094
Third Semester
Computer Science and Engineering
CS6302 Database Management Systems
(Common to information Technology)
(Regulation 2013)
Time- Three hour
Maximum Mark-100

Old Subject Code in R-2008: CS2255
Semester in R-2008: 04th Semester

Answer all questions
PART A-10X2=20 marks

1. Write the characteristics that distinguish the data base approach with File-base approach.

2. Define: Function dependency.

3. State the need for Query optimization.

4. What is different between static and dynamic SQL.

5. Write the ACID properties of transaction.

6. Define: DDL, DML, DCL and  TCL

7. How dynamic hashing differ from static hashing.

8. Write about the four type (star, snowflake, galaxy and fast constellation)of data ware house schemas.

9. Define threats and risks.

10. What is association rule mining?

Part b-5x16-80 marks

11.(a) Draw E-R diagram for the restaurant menu ordering system which will facilitate the food items ordering and services within a restaurant. The entire restaurant scenario is detail as follow. The customer is able to view to food items menu, call the waiter, place order and obtain the final bill through the computer kept in their table. The waiter through their wireless tablet PC are able to initialize a table for customer, control the table function to assist customer, orders, sent order to food preparation staff (chef) and finalize the customer bill. The food preparation staff (chef), with their touch display interfaces to the system,are able to view orders to sent the kitchen by waiter. During preparation they are able to let the waiter know the status of each items are completed. The system should have full accountability and logging facilities and should support supervisors action to account for exceptional circumstances, such as a meal being refunded or walked out on.
(b) State the need for normalization of a data base and explain the various normal forms (1st,2nd, 3rd BCNF, 4th,5thand domain key)with suitable example.

12.(a) Consider a student registration database comprising of belong given table schema.
Student file
Student number               student name     student address         telephone Number
Course number                 Description      Hours                         professor Number
Professor File
Professor number             Name                 Office
Registration number  
Student Name                 course               Data
Consider a suitable sample of tuples /record for the above mentioned tables and wires DML statement (SQR) to answer for the queries listed below.
(i) Which courses does a specific professor teach?
(ii) What courses are taught by two specific professors?
(iii) Who teaches a specific course and where is his/her office?
(iv) For a specific student number, in which course is the student registered and what is his/her name?
(v) Who are a professors for the specific studend?
(vi) Who are the student registered in a specific course?
(b) Discuss about the join order optimization and Heuristic optimization algorithms.

13.(a) Explain the two phase commit and Three phase commit protocols.
(b) Consider the following schedules. The actions are listed in order they are schedules, and prefixed with the transaction name.
S1: T1:R(X), T2: R(X), T1: W(Y), T2¬:W(Y), T1: R(Y), T2R(Y)
S2: T3:W(X), T1:R(X) , T1W(Y), T2:R(Z), T2:W(Z), T3:R(Z)
For each of the schedules, answer the following questions:
(i) What is the precedence graph for the schedule?
(ii) Is the schedules conflict- serializable?If so what are all the conflict equivalent serial schedules?
(iii) Is the schedules view-serializable? If so what are all the view equivalent serial schedules?
14.(a) With suitable diagram, discuss about the Raid level (level 0, level 1, level 0+1, level 3, level 4, level 5)
(b)Explain the Architectural components of a data warehouse and write about data marts.

15.(a) Neatly write the K- means  algorithm and show the intermediation result in clustering the below given point into cluster using K-meansalgorithm.
P1: (0,0),P2 (1,10) P3:(2,20) P4: (1,15) P5: (1000,2000),P6:(1500,1500)P7:(1000,1250)
(b) Discuss about the access control mechanisms and cryptography methods to secure the databases.

Anna University IT2352 CRYPTOGRAPHY AND NETWORK SECURITY 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71763
Seventh semester
Computer science and Engineering
(Common to sixth semester information Technology)
(Regulation 2008/2010)
(common to PTIT 2352-cryptography and network security for B.E(PART-TIME) seventh semester- Computer science and Engineering- Regulation 2009)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20 marks
1. Differentiate between active attacks and passive attacks.
2. Find 117 mod 13.
3. Differentiate between steam ciphers and block ciphers.
4. State view application of RC4 algorithm.
5. What is primitive roots?
6. What is digital signature?
7. What are certificate revoked in X.509?
8. What is tunnel mode in IP security?
9. Define worm.
10. What is the advantages of intrusion detection system over firewall?
11.(a) Explain the substitution encryption technique in detail.
(b) State the drive
(i)Fermate’s theorem
(ii)Euler’s theorem
12.(a) Explain the data encryption standard (DES) in detail.
(b) Explain the RSA algorithm in detail. For the given value, trace the sequence of calculation in RSA. P=7, q=13,e=5,and m=10.
13.(a) Explain ELG amal public key cryptosystem with an example.
(b) Explain secure Hash in detail.
14.(a) Explain kerberos version 4 in detail.
(b) Explain secure socket layer in detail.
15.(a)Wirte brief notes on following;
(i) Classification of viruses
(ii) Worm counter of measure
(b) Explain the character and types of firewall.

Anna University CS2302-COMPUTRER NETWORKS 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71385
Fifth semester
Computer science and Engineering
(Common to information technology)
(Regulation 2008/2010)
(Common to PTCS 2302-computer network for B.E (part-time) forth semester CSE Regulation 2009 and 10144 CS 503-Dats communication and computer network for B.E (part-time) Fifth semester CSE Regulation 2010)  
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20

1. What is flow control?

2. What is refraction?

3. What are the issues in data link layer?

4. What are the criteria used to evaluate transmission medium.

5. What are the responsibility of network layer?

6. What are datagrams?

7. What are the duties of transport layer?

8. What is difference between network layer delivery and transport layer delivery?

9. What is the basic model of FTP?

10. Give the formant of  HTTP request.

Part b=5x16=80 marks

11.(a) Explain how to build network with OSI and TCP/IP reference model.
(b) Write short note on
(i) Reliable transmission

12.(a) Discuss the design procedure to build wireless LAN network.
(b) What are common ETHERNET implementation ? Discuss about the sublayer.

13.(a) Discuss about distance vector routing with illustration?
(b) Compare and contrast different types of switching methodologies?

14.(a) Explain the method of congestion avoidence?
(b)Explain about UTP and TCP features with neat diagrammatic representation.
15.(a) Explain the structure of Data encryption standard. List various security   services.
(b) Explain about RSA algorithm with illustration.

Anna University CE6401-CONSTRUCTION MATERIAL 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 77060
Fourth semester
Civil Engineering
(Regulation 2013)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20marks

1. List any four test on stones.

2. Define the term Efflorescence.

3. What are the normal ingredients of cement?

4. Define elongation index.

5. What is meant by modules of ruoture?

6. Define HPC as per ACI.

7. What are the advantages of Thermacole?

8. What are the advantages of bituminous roadsover concrete roads?

9. What are the characteristics of good sealants?

10. Differentiate geo membranes and geo textiles.

Part b-5x16=80 marks

11.(a) Explain in detail about the manufacturing process of bricks.
(b) Explain the recent advancement in bricks.

12.(a) How do you perform the compression strength of cement mortar cube? Also explain the procedure for fineness of cement.
(b) Explain with codal provision for testing of conventional coarse aggregates.
13.(a) With sketch explain in details about the different flow properties of concrete.
(b) With sketch explain the various specification for self compacting concrete.

14.(a) Explain the manufacturing process and civil engg application of steel.
(b) Explain in detail about:
(i) Aluminium composite panel
(ii) Distember
(iii) Paint

15.(a) Explain in detail about:
(i) Ceramics
(ii) Fibre glass reinforced plastic
(b) Describe the various application of (i) Laminar composites (ii) Geo textiles

Thursday, July 30, 2015

Anna University CS2401 COMPUTER GRAPHICS 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71397
Seventh semester
(Common to information Technology)
(Regulation 2008/2010)
Time- Three hour
Maximum mark-100
Answer all questions       
PART A-10X2=20
  1. Identify the contrast between Raster and Vector Grapkis.

  1. What is shear transformation?

  1. What is Mesh modelling?

  1. Draw the 3D viewing pipeline.

  1. Give the code snippet for setting up a coordinate system in openGL.

  1. Mention the uses of chromaticity diagram.

  1. What is Flat shading?

  1. What are the two type of textures applied on surfaces?

  1. What is a koch curve?

  1. What is CSG technique?

11.(a)(i) Summarize midpoint circle drawing procedure .
(ii)Use the above procedure to compute point on a circle with centre at (5,5) aand radius of 8 unit.
(b)(i) Rotate a triangle ((4,6)(2,2)(6,2)) above the vertex (4,6) by 1800  CCW and find the new vertices.
(ii) Prove the reflection is equal to rotation by 1800.

12.(a)(i) Write short notes on 3D transformations.
(ii)Present any two simple method for visible surface detection.
(b) Describe the projection in 3D.

13.(a) Describe about the most common used colour models used in computer Graphics.
(b)(i)Write short notes on technique for computer Animation.
(ii)Write code snippet for drawing basic 2D primitively in open GL.

14.(a)(i) How are diffused and specular components compute in a shafting model.
(ii) Write about Gouraud and Phong shading techniques.
(b)(i)How are shadows creating using textures? Give example
(ii) Present a brief discussion on Reflections Mapping.

15.(a)(i)How are peano curves produced? Give example.
(ii) Write short notes on Mandelbrot.
(b)Describe the process of a Ray Tracing. Explain how it is used to create Reflections and Transparency.

Anna University BA 9206- CORPORATE FINANCE 2015 Question Papers

Anna University Previous Years Question Papers
Question paper code: 40226
(Regulation 2009/2010)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20
1. What is capital market?

2. What is meant by debenture?

3. What is working capital?

4. What is the commercial paper?

5. What is risk analysis?

6. What is sensitivity analysis?

7. What is dividend decision?

8. What is simulation?

9. What is corporate governance?

10. What is corporate ethics?

Part b-5x16=80 marks
11.(a) Explain the features and problems of India capital market.


(b) Discuss the role of EXIM bank and commercial banks.

12.(a)What are the public  deposits? Why are the popular? Enumerate the advantages of raising resource through public deposits?
(b)Explain the requirement of working capital for a textile concern.

13.(a) Describe the various modes of appraisal of risky investment.
(b) What is decision tree analysis? Explain the decision tree approach in  investment decision.

14.(a) Discuss the financing decision in the context of option pricing model and agency costa.
(b)What is financing decision? Differentiate between cash inadequacy and cosh insolvency.
15.(a)Explain the objectives and benefits of corporate governance.
(b) Who are stakeholder?  Explain the social contract between business and society?

Anna University EC2311-COMMUNICATION ENGINEERING 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71457
Fifth semester
Electrical and Electronics Engineering
(Common to PTEC 2311-COMMUNICATION Engineering for B.E.(part time)
(Regulation 2008/2010)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20
1. Define the propagation constant of transmission line.

2. For a transmission line having incident voltage of 5V and reflection voltages of 3V, determine SWR.

3. What is shape factor?

4. Write any four primary application of FDM.

5. Differentiate Bit rate and Band rate of digital modulation.

6. What are the most four common method of pulse modulation?

7. What are  the type of character used in data communication codes?

8. List the channels and their data rate used in ISDN.

9. What are the primary advantages of optical fiber system?

10. Define angel of elevation.

11.(a)(i) Define and derive the free space path loss.
(ii) Space wave propagation distance can be extended by increasing either the transmit or receive antenna height or both –justify the statement with the required diagram and derivation.


(b)(i) With a neat diagram , explain the process of matching a load to a transmission line with a shorted stub.
(ii)Perform the phasor analysis of input impedance for a transmission line less than one quarter wavelength long.

12.(a) For an AM-DSBFC modulator with a carrier frequency fc =100KHz and a maximum modulating signal frequency fm(max) ¬ =10KHz, Determine
(i) Frequency limit for upper and lower side bands.
(ii) Bandwidth
(iii) Upper and lower side frequency produced when the modulating signal is a single- frequency 3 KHz tone.
(iv)Draw the output frequency spectrum.


(b) Explain operation of Foster- seeley discriminator with the following.
(i) Schematic diagram
(ii) Vector diagram for    fin =f0
                                         fin <f0

13.(a)A PCM  system has the following parameters; a maximum analog input frequency of 4KHz a maximum decoded voltage at the received of ±2.55V and a minimum dynamic range of 46Db. Determine the following:
(i) Minimum sample rate
(ii) Minimum number of bits used in the PCM code
(iii) Resolution
(iv) quantization error.


(b) What is BPSK? With a neat block diagram, explain BPSK  transmitter. Also
Analyze the bandwidth consideration of BPSK.

14.(a)Determine the BCS for following and CRC generating polynomials:
Data G(x)=x7+x5+x4+x2+1
CRC P(x)= x5+x4+x1+x0


(b) What are the access control methodologies used in LAN? Explain the operation of Token ring with the following:
(i) Token frame layout
(ii)MAC sublayer frame layout.

15.(a)Describe briefly and compare the three type of optical fiber configuration?
(b) Discuss in detail about the frequency reuse concept of cellular network. Support your answer with the required diagram.

Anna University CE 6306-STRENGTH OF MATERIALS 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 77058
Third semester
Mechanical Engineering
(common to Mechatronics Engineering ,Industrial Engineering and management , Industrial Engineering, manufacturing Engineering , Mechanical Engineering (sandwich) material science and Engineering and also common to fourth semester  Automobile Engineering, Mechanical and Automation Engineering and Production Engineering)
(Regulation 2013)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20
1. What do you mean by thermal stresses?

2. Draw the mohr’s circle for the state of pure shear in a stained body and mark all salient points it?

3. Define:
(i)Sharing force
(ii)Bending moment

4. What is neutral axis of a beam section? How do you locate it when a beam is under simple bending?

5. What is meant by torsional stiffness?

6. What are  the use of helical springs?

7. What are the advantages of  Macaulay’s method for the calculation of slope and deflection?

8. In a cantilever beam, the measured deflection at free end was 8mm when a concentration load of 12 KN was applied at its mid-span. What will be the deflection at mid-span when the same beam carrier a concentrated load of 7 KN at the free end?

9. Distinguish between thin and thick shells.

10. State the assumption made in Lame’e  theorem for thick cylinder analysis.


11.(a) A steel rod of diameter at 32mm and length 500mm is placed inside an aluminium tube of internal diameter 35mm and external diameter 45mm which is 1mm longer than the steel rod. A load of 300 KN is placed on the assembly through the rigid collar. Find the stress induoed in steel rod and aluminium tube. Take the modulus of elasticity of steel as 200 GPa and that of aluminium as 80GPa.s

(b)At a point in a stained material the resultant intensity of stresses across a vertical plane is 100MP a tensile inclined at350 clockwise to its normal. The normal component of intensity of stress across the horizontal plane is 50MPa compressive. Determine graphically using Mohr’s circle method:
(i)The position of principal planes and stress across them and
(ii) The normal and tangential stress across a plane which is 600 clockwise to the vertical plane.

12.(a)An overhanging beam ABC of length 7m is simply supported at A and B over a span of 5m and the portion BC overhangs by 2m. Draw the shearing force and bending moment diagram and determine the point of contra flexure if it is subjected to uniformly distributed loads of 3KN/m over the portion AB and a concentrated load of 8KN at C.


(b)Three beam have a same length, the same allowable stress and the same bending moment. The cross section of the beam are a square, a rectangle depth twice the width and a circular. Find the radios of weight of the circular and the rectangular beams with respect to square beam.

13(a)A brass tube of external diameter 80mm  and internal diameter 50mm is closely fitted to a steel rod of 50mm diameter to from a composite shaft. If a torque of 10KNm is to be resisted by this shaft find the maximum stresses developed in each material and the angel of twist in 2m length. Take  modualus of rigidity of brass and steel as40x103 N/mm2 and 80x 103 N/mm2 respectively.


(b)A close-coiled helical spring is to have a stiffness of 900N/m in compression, with a maximum load of 45N and a maximum shearing stress of 120N/mm2. The solid length of the spring (i. e . ,coils touching) is 45mm. Find:
(i)The wire diameter
(ii) The mean coil radius
(iii)The number of coils. Take modulus of rigidity of the material of the spring as 0.4x105 N/mm2.

14.(a) A horizontal beam of uniform section and 7m long is simply supported at its  end. The beam is subjected to a uniformly distributed load of 6KN/m over a length of 3m from the leaf end and a concentrated load 12KN at 5m from the left end. Find the maximum deflection in the beam using Macaulay’s method.

(b) A cantilever of span 4m carries a uniformly distributed load of 4KN/m over a length of 2m from the fixed end and a concentrated load of 10KN at the free end. Determine the slope and deflection of the cantilever at the free end using conjugate beam method. Assume El is uniform throughout.

15.(a)A thin cylindrical shell 2.5m long has 700mm internal diameter and 8mm thickness if the shell is subjected to an internal pressure of 1MPa find
(i)The hool and longitudinal stresses developed
(ii)Maximum shear stress induces and
(iii) The changes in diameter length and volume. Take modulus of elasticity of the wall material as 200GPs and Poisson’s radio as 0.3.

(b)A thick cylinder with external diameter 320mm and internal diameter 160mm is subjected to an internal pressure of 8 N/mm2. Draw the variation of radial and hoop stresses in the cylinder wall. Also determine the maximum shear stress in the cylinder wall.

Anna University CS2041 C# and NET FRAMEWORK 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 71360
Seventh semester
Computer science and Engineering
CS2041/CS706/10144 CSE 42 – C# and NET FRAMEWORK
(common to information Technology)
(Regulation 2008/2010)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20

1. Compare array with structure.

2. List the different types of I/O commands in c#.

3. What is inheritance?

4. Define: Polymorphism.

5. What do you mean by synchronization?

6. What is a thread?

7. What is data binding?

8. How does ADO.NET support security?

9. List same web services.

10. What do you mean by remoting ?

11.(a) Explain the basic elements of c# in detail.
(b) Explain the different types of expression and operation in detail.

12.(a) Explain about concept of operator overloading in detail.
(b) Discuss about:
(i) indexes

13.(a) Explain c# concept for creating data structure in detail.
(b: ) Discuss about
(i) Multitasking

14(a) Discuss about the techniques of reading and writing XML data.
(b) Explain about ADO.NET architecture in detail.

15.(a) Explain about NET coding design guidelines in detail.
(b) Discuss about:

Anna University STATISTICS FOR MANAGEMENT 2015 Question Paper

Anna University Previous Years Question Papers

Question paper code: 40201


First semester
(Regulation 2008/2010)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20

1. What are the common types of variables used in statistics?

2. Name a few descriptive measures of data.

3. State central limit theorem.

4. What are the property of an estimator?

5. What is a hypothesis?

6. What is meant by design of experiments?

7. Write the meaning of non-parametric test?

8. How do you find the degrees of freedom in case of chi-square test?

9. Define seasonal variations and cyclic variations.

10. Explain briefly about the Laspeyre’s  method of constructing index number.


11.(a) The following data show the yearly income distribution of a sample of 200 employees at MNM, inc.
 Yearly income                            Number of
        (In $1,000s)                               employees
20-24 2
25-29 48
30-34 60
35-39 80
40-44 10
(i) What percentage of employees has yearly income of $35,000 or more?
(ii) Is the figure (percentage) that you computed in (i) an example of statistical inference? If no, What kind of statistical does it represent?
(iii) Based on this sample, the president of the company side that “45% of all our employees’ yearly income are $35,000 or more”. The president’ statement represent what kind of statistics?
(iv) With the statement mate in (iii) can we assure that more than 45% of all employees’ yearly income are at least $35,000? Explain
(v) What percentage of employees of the sample has yearly income of $29,000 or less?
(vi) How many variables are presented in the above data set?
(vii) The above data set represents the results of how many observations?


(b) An experiment consist of throwing two six sided dice and observing the number of spots on the upper faces. Determine the probability that
(i) the sum of the spots is 3
(ii)each die four or more spots
(iii)the sum of the spots is not 3
(iv)neither a one nor a six appear on each die
(v)a pair of six appear
(vi)the sum of the spots is 7

12.(a)(i) Find the probability that in 120 tosses of a fair coin (1) between 40%and 60% will be heads (2)5/8 or more will be heads.

(ii) A population consists of five number 2,3,6,8,11. Consist all possible sample  of size to which can be drawn with replacement from this population. Find the mean of the sampling distribution of means , the standard deviation of the sampling distribution of means.


(b)(i)Suppose  that the heights of 100 male students at XYZ university represented a random sample of the highest of all male student at the university. Find (1)95% (2)99% confidents intervals for estimating the means height of the XYZ university students.

(ii)A sample of five measurement of a diameter of a sphere were record by a scientist as 6.33,6.37, 6.36 , 6.32 and 6.37 cm. Determine unbiased and efficient estimates of 1 the true mean (2) the turn variance. Assume that the measured diameter is normally distributed.

13.(a) The average number of defective articles in a certain factory is claimed to be less than the average for all the factories. The average for all the factories is 30.5. A random sample of  100 defective articles showed the following distribution.
Class limits:  16-20    21-25     26-30      31-35       36-40
Number:           12          22           20         30              16
Calculate the mean and the standard deviation of the sample and use it to test the claim that the average is less than  the figure for all the factories at 5% level of significance. Given Z(-1.645)=0.95.
(b)Three samples below have been obtained from the normal population with equal variance. Test the hypothesis that the sample means are equal.
I       II       III
8       7         12
10      5          9
7        10      13
14       9        12
11       9         14

14.(a)Independent random sample of ten day students and ten evening students at a university showed a following age distributions. We want to use the Mann-whitney - wilcoxon test to determine if  there is a significant difference in the age distribution of the two group.
Day            Evening
26                    32
18                    24
25                    23
27                    30
19                     40
30                    41
34                    42
21                    29
33                    45
31                     35

(i) Compute the sum of rank (T)for the day student
(ii) Compute the mean µt
(iii) Compute σt
(iv) Use α=0.05and test for any significant difference in the age distribution of the two population.

(b)In a sample of 400 people 250 indicated that day they prefer domestic products while 140 said they prefer foreign products and 10 indicated no preference. We want to use the sign test to determine if there is evidence of a significant difference in the two types of products.
(i) Provide the hypotheses
(ii)Compute the mean
(iii)Compute the standard deviation
(iv)At 95% confidents test to determine if there is evidence of a significant difference in the preferences of the two types of products.

15.(a) Estimate the pearson correlation coefficient by using the following data:
Job:          1       2         3           4           5            6         7        8       9     10
Systems1:4.1   5.0     4.9        5.3      13.5        12.0     19.2   10.0  24.1   6.9
Systems2:3.9    5.1    5.0      4.9        13.3        13.2     21.3  9.1    23.0    8.1

(b)Compute seasonal variations from the following time series using moving average method
Year                2002          2003        2004            2005
Q1              75               86            90                 100
Q2              60                65           70                   72
Q3               54               63           66                   72
Q4                59              80           85                   93

Anna University AT6402-AUTOMOBILE CHASSIS 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 77030
Fourth semester
Automobile Engineering
(Regulation 2013)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20
1. What are the various forces and moment that act on a vehicle frame?

2. Define chamber and caster with sketches.

3. What are the advantages of radial ply tyres?

4. Why are universal joints required on propeller shaft?

5. What are the various loads that act on drive axle?

6. What are the purpose of differential in a vehicle?

7. What are the function of the suspension system?

8. List out the advantages of independent suspension system?

9. Differentiate drum and disc brakes.

10. What is the function of master cylinder in a braking system?


11.(a)(i)Sketch and explain Ackermann steering mechanisms.
(ii) List out various type of steering gear boxes. Explain the constriction and operation of any two of them with relevance sketches?


(b)(i)Sketch and explain the layout of a rear derive car .What are the advantages and limitation of the layout?
(ii) Briefly explain various tests being carrier out on a vehicle frame?

12.(a)(i)Explain the sketch both Hotchkiss and torque tube drive mechanisms.
(ii)Illustrate the function of final derive with a sketch.


(b)(i)What is meant by constant velocity joint? Illustrate it usages in a vehicle.
(ii)What is a non-slip differential? Explain the principle and operation of a non-slip differential with a sketch?

13.(a)(i)List out the function of rear axle housing.
(ii)Explain the construction of full-floating and semi-floating rear axles with sketches.


(b)(i)What are the different types of wheel? Discuss their relative merits.
(ii)Explain the constructional details of a cross ply type with a neat sectional view.

14.(a)(i)Distinguish between independent suspension and conventional rigid axle suspension.
(ii)Describe the construction and working of a telescopic shock absorber with a sketch.


(b)(i) What is meant by anti lock braking system? How does it work?
(ii)With a neat sketch explain the construction and operation of the hydraulic brake system?


(b)(i) With a neat sketch explain the construction and function of a simple wheel cylinder.
(ii)With a neat sketch explain the construction and operation of the air brake system.

Anna University ADVANCED SYSTEM SOFTWARE 2015 Question Paper

Anna University Previous Years Question Papers
Question paper code: 41210
Second semester
Computer science and Engineering
(Regulation 2009)
Time- Three hour
Maximum mark-100
Answer all questions
PART A-10X2=20

1. What are the basic function of compiler?

2. Give one example for each parameter passing methods.

3. Draw the symbol table structure.

4. Differentiate high level languages from medium level languages.

5. What is meant by in-line expansion?

6. What is meant by branch scheduling?

7. State the need for virtual machines.

8. List the properties of  garbage collection.

9. Justify the use of binary translation.

10. State the any two real word examples of system software.

PART B-5X16=80

11.(a)(i)Explain the parameter passing method.
(ii)Explain the steps involved in implementing subprograms.
(b)(i)Explain the dynamic binding of method calls.
(ii) Describe the memory management unit.

12.(a)Discuss the local and global symbol table structure.
(b)How MIR and HIR can be represented in ICAN.

13.(a) Explain how leaf-routine and wrapping optimize the calling conversion in a language implementation.
(b)(i) Give any overview of register allocation using graph coloring.
(ii)Explain the software pipelining method to improve scheduling instructions.

14.(a)With a neat sketch, explain the Java Virtual Machine Architecture and the common language infrastructure.
(b)(i)Explain the dynamic class loading mechanism in virtual machines.
(ii)Explain security mechanism in virtual machines.

15.(a)(i) Discuss the features of computational grids.
(ii)Explain profiling with on example.
(b)(i)Explain the instruction set issues that arise in virtual machines with an example.
(ii)Discuss the interpretation in brief.