Subject Code: R13205/R13 Set No - 1 I B.Tech II Semester ?· I B.Tech II Semester Supplementary Examinations…

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<ul><li><p> |''|'||'|''|''||'|'|</p><p>Subject Code: R13205/R13 I B.Tech II Semester Supplementary Examinations Dec./Jan. 2015/2016 </p><p>COMPUTER PROGRAMMING (Common to ECE, EEE, EIE, Bio-Tech, E Com E, Agri E) </p><p> Time: 3 hours Max. Marks: 70 Question Paper Consists of Part-A and Part-B </p><p>Answering the question in Part-A is Compulsory, </p><p>Three Questions should be answered from Part-B </p><p>**** </p><p>PART-A </p><p>1. (a) C is a structured programming language? Justify. </p><p> (b) Differentiate between for and while statements. </p><p> (c) Explain about the parameter passing using copy by address. </p><p> (d) Explain about the *, ** and &amp; keywords. </p><p> (e) Explain about the masks. </p><p> (f) Differentiate between scanf and fscanf functions with examples. </p><p>[3+4+3+4+4+4] </p><p>PART- B </p><p>2. (a) Explain about different computer languages. </p><p> (b) Write a program to calculate the series: 1+ +1/3+1/4+1/5..+1/n </p><p>[8+8] </p><p>3. (a) Explain about the iterative statements with examples. </p><p> (b) Write a program to find the factorial of a given number. </p><p>[8+8] </p><p>4. Define function? How to declare function? Create functions with and without inputs and </p><p>outputs. </p><p>[16] </p><p>5. (a) What is pointer? How to initialize pointers? Give examples. </p><p> (b) Write a program to swap two numbers using pointers. </p><p>[8+8] </p><p>6. (a) Differentiate between structure and union? </p><p> (b) Write a program to calculate the grade and total marks of the given student using </p><p>structures. </p><p>[8+8] </p><p>7. (a) What are different types of files? Explain. </p><p> (b) Write a program to display contents of the file on screen. </p><p>[8+8] </p><p>**** </p><p>Set No - 1 </p></li><li><p> |''|'||'|''|''||'|'|</p><p>Subject Code: R13212/R13 I B.Tech II Semester Supplementary Examinations Dec./Jan. 2015/2016 </p><p>ELECTRICAL CIRCUITS ANALYSIS-I (EEE) </p><p> Time: 3 hours Max. Marks: 70 Question Paper Consists of Part-A and Part-B </p><p>Answering the question in Part-A is Compulsory, </p><p>Three Questions should be answered from Part-B </p><p>***** </p><p>PART-A </p><p>1. (a) State Kirchhoffs laws. What are its limitations? </p><p> (b) Define phase angle and phase difference. </p><p> (c) A series RLC circuit has R=80 ohms, L=100 H, C=0.3 F. Find the resonant frequency </p><p>and current at resonance if the supply voltage is 10 V. </p><p> (d) State Faradays laws of electromagnetic induction. </p><p> (e) Write the properties of dual networks. </p><p> (f) State compensation theorem. </p><p>[4+4+4+4+3+3] </p><p>PART-B </p><p>2. (a) Explain the star-to-delta and delta-to-star transformation for a resistive network. </p><p> (b) Find a single source equivalent at the terminals of a circuit shown in fig.1 </p><p>[8+8] </p><p>3. (a) Two coils A and B are connected in series across a 240 V, 50 Hz supply. The resistance </p><p>of coil A is 5 ohms and inductance of coil B is 0.015 H. If input from the supply is 3 kW </p><p>and 2 kVAr, find the resistance of coil B and inductance of coil A. Also calculate voltage </p><p>across each coil. </p><p> (b) A resistance R, an inductance L=0.01 H, and a capacitance C are connected in series. </p><p>When a voltage )10-cos(3000t 4000</p><p>=v volts is applied to the series combination, a </p><p>current flowing is )55-cos(3000t 210 0=i amperes. Find R and C. </p><p>[8+8] </p><p>4. (a) Show that resonant frequency n of RLC series circuit is geometric mean of lower and </p><p>upper half-frequencies 1 and 2. </p><p>Page 1 of 2 </p><p>2 10 </p><p>20 V </p><p>Fig.1 </p><p>2 </p><p>10 V </p><p>1 A 5 2 A </p><p>A </p><p>B </p><p>Set No - 1 </p></li><li><p> |''|'||'|''|''||'|'|</p><p>Subject Code: R13212/R13 </p><p>4. (b) Find the value of L so that the circuit shown in fig.2 resonates. </p><p>Fig.2 </p><p>[8+8] </p><p>5. (a) Explain the dot convention in coupled circuits. </p><p> (b) A magnetic circuit consists of an iron ring of mean circumference 80 cm with cross-</p><p>sectional area of 12 cm2 throughout. A current of 2A in the magnetizing coil of 200 turns </p><p>produce a total flux of 1.2 m Wb in the iron. Calculate: (i) the flux density in the iron (ii) </p><p>the absolute and relative permeability of iron (iii) the reluctance of the circuit. </p><p>[7+9] </p><p>6. (a) Explain the procedure to form the tie-set matrix of the given network. Discuss the </p><p>advantages of tie-set matrix. </p><p> (b) For the network shown in Fig.3, obtain the fundamental cut-set matrix. </p><p>[8+8] </p><p>7. (a) State and explain the Maximum power transfer theorem. </p><p> (b) Find VL in the circuit shown in fig.4, using superposition theorem. </p><p>[8+8] </p><p>***** </p><p>Page 2 of 2 </p><p> E, 60 Hz </p><p>81 -j43.2 </p><p>15 L </p><p>~ </p><p>Fig.3 </p><p>2 1 4 </p><p>3 </p><p>5 A </p><p>Fig.4 </p><p>7 A 4V </p><p>+ </p><p>- </p><p>VL </p><p>5 </p><p>8 + </p><p>- </p><p>4 </p><p>3 A </p><p>3 </p><p>Set No - 1 </p></li><li><p> |''|'||'|''|''||'|'|</p><p>Subject Code: R13204/R13 I B.Tech II Semester Supplementary Examinations Dec./Jan. 2015/2016 </p><p>ENGINEERING CHEMISTRY (Common to ECE, EEE, EIE, Bio-Tech, E Com E, Agri E) </p><p> Time: 3 hours Max. Marks: 70 Question Paper Consists of Part-A and Part-B </p><p>Answering the question in Part-A is Compulsory, </p><p>Three Questions should be answered from Part-B </p><p>***** </p><p>PART-A </p><p>1. (a) A coal sample gave the following analysis C = 66.2%, H = 4.2%, O = 6.1%, N = 1.4%, </p><p>S = 2.9% and remaining ash. If one Kg of coal is burnt with 25 % excess air, determine </p><p>the quantity of products of combustion. </p><p> (b) Write short notes on: (i) Biodegradable polymers (ii) Break point chlorination </p><p>(iii) Electroless plating (iv) Electrode potential </p><p>(v) Stereo-specific polymers </p><p>[7+(3+3+3+3+3)] </p><p>PART-B </p><p>2. (a) What are boiler troubles? Explain the formation and disadvantages of scale and sludge </p><p> particles in boilers. </p><p> (b) Write notes on preparation and applications of phenol formaldehyde resins. </p><p> (c) Explain the refining of petroleum. </p><p>[6+5+5] </p><p>3. (a) What is meant by reference electrode? Explain principle and working of primary </p><p>reference electrode. </p><p> (b) Write notes on differential aeration and pitting corrosion. </p><p> (c) Write notes on green house effect. </p><p>[6+5+5] </p><p>4. (a) Explain theory of dry corrosion and nature of oxide film formed on the metal surface. </p><p> (b) Explain the functions of lime and soda in removal of permanent and temporary hardness </p><p> of water sample, give chemical reactions. </p><p> (c) Explain the anionic addition polymerization with example. </p><p>[6+5+5] </p><p>5. (a) Write notes on preparation and uses of BUNA-S and Thiokol. </p><p> (b) Explain the conductance behavior of weak electrolyte and strong electrolyte. </p><p> (c) Write any one method for synthesis of CNTs </p><p>[6+5+5] </p><p>6. (a) What is meant by ultimate analysis. Explain the determination of carbon and nitrogen </p><p> content in a coal sample. </p><p> (b) Describe a method for estimation of hardness of water. </p><p> (c) Explain the working of Ni-Cd cell with suitable reactions. </p><p>[6+5+5] </p><p>7. (a) What is setting and hardening of cement. Explain with proper chemical reactions. </p><p> (b) Define Calorific value of a fuel. Write notes on HCV and LCV. </p><p> (c) What is meant by organic surface coating? Write notes on constituents of paints. </p><p>[6+5+5] </p><p>**** </p><p>Set No - 1 </p></li><li><p> |''|'||'|''|''||'|'|</p><p>Subject Code: R13209/R13 I B.Tech II Semester Supplementary Examinations Dec./Jan. 2015/2016 </p><p>ENGINEERING DRAWING (Common to CE &amp; ME) </p><p> Time: 3 hours Max. Marks: 70 Question Paper Consists of Part-A and Part-B </p><p>Answering the question in Part-A is Compulsory, </p><p>Three Questions should be answered from Part-B </p><p>***** </p><p>PART-A </p><p>1. (a) A regular pentagonal lamina of 30mm sides has one edge in HP and inclined at an angle </p><p>of 300 to VP. Draw its projections when its surface is inclined at 45</p><p>0 to HP. </p><p> (b) Draw the isometric view of Fig.1 </p><p> Fig.1 </p><p>[10+12] </p><p>PART-B </p><p>2. (a) Construct a diagonal scale of RF=1/32 showing yards, feet and inches and to measure up </p><p>to 4 yards. </p><p>(b) A plot of ground is in the shape of a rectangle 110m x 50m. Inscribe an elliptical lawn in </p><p>it. Take a suitable scale. </p><p>[8+8] </p><p>3. (a) A 100mm long line is parallel to and 40mm above the HP. Its two ends are 25mm and </p><p>50mm in front of the VP respectively. Draw its projections and find its inclinations with </p><p>the VP. </p><p>Page 1 of 2 </p><p>Set No - 1 </p></li><li><p> |''|'||'|''|''||'|'|</p><p> Subject Code: R13209/R13 </p><p>3. (b) A point A is situated in the first quadrant. Its shortest distance from the intersection point </p><p>of HP; VP and auxiliary plane is 60mm and it is equidistant from the principal planes. </p><p>Draw the projections of the point and determine its distance from the principal planes. </p><p>[8+8] </p><p>4. The projectors drawn from the HT and the VT of a straight line AB are 80mm apart while </p><p>those drawn from its ends are 50mm apart. The HT is 35mm in front of the VP; the VT is </p><p>55mm above the HP and the end A is 10mm above the HP. Draw the projections of AB </p><p>and determine its length and inclinations with the reference planes. </p><p>[16] </p><p>5. A plane figure composed of an equilateral triangle ABC and a semicircle AC as diameter. </p><p>The length of the side AB is 50mm and is parallel to the VP. The corner B is 20mm </p><p>behind the VP and 15mm below the HP. The plane of the figure is inclined at 450 to the </p><p>HP. Draw the projections of the plane figure. </p><p>[16] </p><p>6. (a) Draw the projections of a cylinder 75mm diameter and 100mm long, lying on the ground </p><p>with its axis inclined at 300 to the VP and parallel to the ground. </p><p>(b) A square pyramid base 40mm side and axis 65mm long, has its base in the VP One edge </p><p>of the base is inclined at 300 to the HP and a corner contained by that edge is on the HP. </p><p>Draw its projections. </p><p>[10+6] </p><p>7. Draw Fig.2 (i) Front view (ii) Top view (iii) Right side view </p><p> Fig.2 </p><p>[16] </p><p>**** Page 2 of 2 </p><p>Set No - 1 </p></li><li><p> |''|'||'|''|''||'|'|</p><p>Subject Code: R13209/R13 I B.Tech II Semester Supplementary Examinations Dec./Jan. 2015/2016 </p><p>ENGINEERING DRAWING (Common to CSE, PCE, IT, Chem E, Aero E, Auto E, Min E, Pet E, &amp; Metal E) </p><p> Time: 3 hours Max. Marks: 70 Question Paper Consists of Part-A and Part-B </p><p>Answering the question in Part-A is Compulsory, </p><p>Three Questions should be answered from Part-B </p><p>***** </p><p>PART-A </p><p>1. (a) A thin rectangular plate of sides 60mm x 30mm has its shorter side in VP and inclined at </p><p>300 to HP. Project its top view, if its front view is a square of 30mm long sides. </p><p> (b) Draw Fig.1 (i) Front view (ii) Top view (iii) Right side view </p><p> Fig.1 </p><p>[10+12] </p><p>PART-B </p><p>2. (a) Draw a scale of full size, showing 1/100 inch and measure up to 5 inches. </p><p> (b) Construct a regular pentagon of side 30mm. </p><p>[10+6] </p><p>3. (a) A point P is 20mm below HP and lies in the third quadrant. Its shortest distance from xy </p><p>is 40mm. Draw its projections. </p><p>Page 1 of 2 </p><p>Set No - 1 </p></li><li><p> |''|'||'|''|''||'|'|</p><p>Subject Code: R13209/R13 </p><p>3. (b) The top view of a 75mm long line measures 55mm. The line is in the VP; its one end </p><p>being 25mm above the HP. Draw its projections. </p><p>[8+8] </p><p>4. (a) The front view of a line AB measures 70mm and makes an angle of 450 with xy. A is in </p><p>the HP and the VT of the line is 15mm below the HP. The line is inclined at 300 to the </p><p>VP. Draw the projections of AB, and find its true length, inclination with the HP and its </p><p>HT. </p><p>(b) The projections on the XY line of the horizontal and vertical traces of a straight line AB </p><p>in the first quadrant are 120mm apart. The VT is 100mm above XY and HT 50mm in </p><p>front of XY. The points A and B are 30mm and 80mm above the HP respectively. Draw </p><p>the projections. </p><p>[10+6] </p><p>5. (a) Draw the projections of a pentagonal sheet of 26mm side, having its surface inclined at </p><p>300 to VP. Its one side is parallel to VP and inclined at 45</p><p>0 to HP. </p><p>(b) An equilateral triangle of 5cm side has its VT parallel to and 2.5cm above xy. It has no </p><p>HT. draw its projections when one of its sides is inclined at 450 to the VP. </p><p>[10+6] </p><p>6. Draw the projections of a cone, base 75mm diameter and axis 100mm long, lying on the </p><p>ground on one of its generators with the axis parallel to the VP. </p><p>[16] </p><p>7. Draw the isometric view of Fig.2 </p><p> Fig.2 </p><p>[16] </p><p>Page 2 of 2 </p><p>Set No - 1 </p></li><li><p> |''|'||'|''|''||'|'|</p><p>Subject Code: R13210/R13 </p><p>I B.Tech II Semester Supplementary</p><p>ENGINEERING MECHANICS(Common to ECE, EEE, EIE, Bio</p><p> Time: 3 hours Max. Marks: 70</p><p>Question Paper Consists of </p><p>Answering the question in </p><p>Three Questions should be answered from </p><p>1. (a) Find the unit vector of the force F= 4 i </p><p> (b) What is the principle of transmissibility</p><p> (c) Use Pappus theorem to find the volume of a sphere of radius r.</p><p> (d) State the Parallel axis theorem.</p><p> (e) State the condition for the dynamic equilibrium of a</p><p> (f) What is instantaneous cen</p><p>2. (a) A block weighing 1000 N is kept on a rough plane inclined at 40</p><p>coefficient of friction between the block and the plane is 0.4. Determine the smallest </p><p>(least) force inclined at 15</p><p> (b) A frame is loaded as shown in Fig. </p><p>Subject Code: R13210/R13 I B.Tech II Semester Supplementary Examinations Dec./Jan. </p><p>ENGINEERING MECHANICS (Common to ECE, EEE, EIE, Bio-Tech, E Com E, Agri E) </p><p>Time: 3 hours Max. Marks: 70</p><p>Question Paper Consists of Part-A and Part-B </p><p>Answering the question in Part-A is Compulsory, </p><p>Three Questions should be answered from Part-B </p><p>**** </p><p>PART-A </p><p>Find the unit vector of the force F= 4 i -5 j + 8 k. </p><p>e principle of transmissibility? </p><p>Use Pappus theorem to find the volume of a sphere of radius r. </p><p>State the Parallel axis theorem. </p><p>he condition for the dynamic equilibrium of a body under translation.</p><p>What is instantaneous centre of rotation in plane motion? </p><p>PART-B </p><p>A block weighing 1000 N is kept on a rough plane inclined at 400 to the hori</p><p>coefficient of friction between the block and the plane is 0.4. Determine the smallest </p><p>(least) force inclined at 150 to the plane required just to move the block up the plane.</p><p>A frame is loaded as shown in Fig. 1. Find the support reactions. </p><p>Fig.1 </p><p>1 of 3 </p><p> 2015/2016 </p><p>Time: 3 hours Max. Marks: 70 </p><p>body under translation. </p><p> [4+3+4+4+3+4] </p><p>to the horizontal. The </p><p>coefficient of friction between the blo...</p></li></ul>

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