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Posted By: Nitin Bajaj - Editor Member Level: Diamond Posted Date: 11 Apr 2008
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2007 Jawaharlal Nehru Technological University B.Tech MANUFACTURING TECHNOLOGY (Mechatronics) - Set 4 Question paper
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III B.Tech I Semester Regular Examinations, November 2007 MANUFACTURING TECHNOLOGY (Mechatronics) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ?????
1. (a) What is meant by seasoning of wood and describe various seasoning methods for wood. (b) Describe various pattern allowances
2. (a) Describe Horizontal Centrifugal Casting Machine with a neat sketch. (b) State the advantages and disadvantages of Centrifugal Casting.
3. (a) Describe various rolling products used in industries. (b) How the forces in rolling are estimated? Explain the theory of rolling. [6+10]
4. (a) Explain the extrusion process used to produce seamless tubes. (b) Name any two extrusion products and sketch the process used for each. [8+8]
5. (a) Sketch and explain various hand hammers and power hammers used in practice. Mention their applications. (b) Bring out the di?erences between punching and drifting operations. Mention their applications. [10+6]
6. (a) What are the various inert gases used in welding processes and explain their relative advantages? (b) How the similar and dissimilar metals are welded by friction welding? [8+8]
7. (a) Describe various methods to ?nd out the ?atness and accuracy of surface plate. (b) Describe three methods of testing straight edge one metre long, stating the advantages and sources of error in each. [8+8]
8. (a) What are limit gauges? Sketch and explain the di?erent types of limit gauges. (b) Distinguish between a measuring instrument and gauge
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