II B. Tech II Semester Supplementary Examinations ?· II B. Tech II Semester Supplementary Examinations…

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<ul><li><p>Code No: R22034 R10 SET - 1 </p><p>II B. Tech II Semester Supplementary Examinations January 2014 PRODUCTION TECHNOLOGY (Mechanical Engineering) </p><p>Time: 3 hours Max. Marks: 75 </p><p> Answer any FIVE Questions All Questions carry Equal Marks ~~~~~~~~~~~~~~~~~~~~~~~~ </p><p> 1. a) Explain different types of patterns with neat sketches. </p><p>b) What are the advantages casting? 2. a) What is the function of a riser? Write note on the shape and size of risers. </p><p>b) Explain the steel making processes. 3. a) How do you classify the welding processes? </p><p>b) Explain Thermit Welding process with a neat sketch. 4. a) Explain the term HAZ in welding and its role in the success of a weldment. </p><p>b) Bring out the difference between TIG and MIG welding processes. 5. a) Distinguish between Hot rolling and Cold rolling. </p><p>b) What is strain hardening? Explain in detail. 6. a) How do you classify presses? Explain them briefly. </p><p>b) Briefly explain the metal spinning operation. 7. a) Explain briefly the Open-die forging and Impression die forging. </p><p>b) State the advantages and disadvantages of forging. 8. a) How do the thermoplastics differ from thermo-setting plastics? </p><p>b) With the help of neat sketch explain the processing of plastics by compression moulding method. </p><p>1 of 1 |'''|||'|''||''|''|| </p></li><li><p>Code No: R22034 R10 SET - 2 </p><p>II B. Tech II Semester Supplementary Examinations January 2014 PRODUCTION TECHNOLOGY (Mechanical Engineering) Time: 3 hours Max. Marks: 75 </p><p> Answer any FIVE Questions All Questions carry Equal Marks ~~~~~~~~~~~~~~~~~~~~~~~~ </p><p> 1. a) Explain using a simple sketch the layout of a typical foundry. </p><p>b) Explain the sequence of steps involved in casting. 2. a) What is the difference between the solidification of pure metals and metal alloys? Explain </p><p>b) Describe the Centrifugal casting process and its applications. 3. a) Describe the gas welding process with neat diagram. </p><p>b) Sketch and explain various welding positions? Give their applications. 4. a) Explain briefly the welding defects. </p><p>b) How is Brazing different from Welding and Soldering? 5. a) Explain the terms Recovery, Recrystallisation and Grain growth. </p><p>b) Compare the properties of cold worked and hot worked parts with examples. 6. Describe the following: </p><p>i) Blanking ii) Deep drawing and iii) Spinning processes. 7. a) What is Extrusion? List the advantages, limitations and applications of Extrusion process. </p><p>b) Discuss hydrostatic extrusion process with a neat sketch 8. a) Write brief note on properties of plastics and types of plastics. </p><p>b) Describe with a neat sketch the processing of plastics using injection moulding method. </p><p>1 of 1 |'''|||'|''||''|''|| </p></li><li><p>Code No: R22034 R10 SET - 3 </p><p>II B. Tech II Semester Supplementary Examinations January 2014 </p><p> PRODUCTION TECHNOLOGY </p><p> (Mechanical Engineering) </p><p>Time: 3 hours Max. Marks: 75 </p><p> Answer any FIVE Questions </p><p> All Questions carry Equal Marks </p><p> ~~~~~~~~~~~~~~~~~~~~~~~~ </p><p> 1. a) Show the components of a gating system with a diagram and explain them in detail. </p><p>b) Briefly explain the various types of allowances provided in patterns. 2. a) What steps are involved in the preparation of a Casting? Explain briefly the die </p><p>casting process. b) Explain the two types of crucible furnaces with diagrams. </p><p> 3. a) What are the basic requirements of welding? Explain. </p><p>b) Sketch and explain the submerged arc welding. 4. a) Differentiate between destructive and non-destructive testing of Welds. </p><p>b) Explain the following: i) Friction welding and ii) Laser welding. </p><p> 5. a) Explain hot rolling operations through: </p><p>i) Two high ii) Three high and iii) Four high rolling mill b) How do you estimate rolling load? </p><p> 6. Explain briefly the following processes: </p><p>a) Tube drawing b) Embossing. </p><p> 7. a) Briefly describe the Drop forging and Machine forging processes. </p><p>b) Explain the various defects in forging. 8. a) What are the advantages and limitations of plastics? </p><p>b) Differentiate between injection moulding and extrusion moulding. </p><p>1 of 1 |'''|||'|''||''|''|| </p></li><li><p>Code No: R22034 R10 SET - 4 </p><p>II B. Tech II Semester Supplementary Examinations January 2014 PRODUCTION TECHNOLOGY (Mechanical Engineering) Time: 3 hours Max. Marks: 75 </p><p> Answer any FIVE Questions All Questions carry Equal Marks ~~~~~~~~~~~~~~~~~~~~~~~~ </p><p> 1. a) Why casting is preferred over other methods of manufacturing? Discuss. </p><p>b) Define gating ratio and write a brief note on the design of gating system. 2. a) Explain briefly the Investment casting and Die casting. </p><p>b) With the help of a neat sketch explain the construction and working of Cupola Furnace. 3. a) Explain the principle involved in resistance welding with a neat sketch. </p><p>b) Explain briefly the Oxyacetylene cutting process. 4. a) What are the essential steps in Brazing? Explain why it is suitable for joining </p><p>dissimilar metals? b) Discuss electron beam welding with its advantages. </p><p> 5. a) Enumerate the typical applications of Cold working. </p><p>b) Write a note on thread rolling process. c) What are the forces and power requirements in rolling process? </p><p> 6. a) Explain with a neat sketch wire drawing process. </p><p>b) Briefly describe Deep drawing and Stretch forming processes. 7. a) With the help of neat sketches explain briefly the various Cold Extrusion processes. </p><p>b) Briefly describes the Extrusion defects. 8. a) Distinguish between thermosetting plastics and thermoplastics. Give their applications. </p><p>b) Describe with a neat sketch the processing of plastics using Blow moulding method. </p><p>1 of 1 </p></li></ul>