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Posted Date: 12 Aug 2009 Posted By: satish Member Level: Diamond

2009 Jawaharlal Nehru Technological University Jntu Hyderabad Code No: 35116 Set No.3 III B.Tech I Semester Supplimentary Examinations, May/Jun 2009 PRODUCTION TECHNOLOGY ( Common to Mechanical Engineering, Mechatronics and Automobile Engineering) Question paper

Course: B.Tech Automobile Engineering

University: Jawaharlal Nehru Technological University

Code No: 35116 Set No. 3
III B.Tech I Semester Supplimentary Examinations, May/Jun 2009
PRODUCTION TECHNOLOGY
( Common to Mechanical Engineering, Mechatronics and Automobile
Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
? ? ? ? ?
1. (a) What are the advantages of casting process over other production processes?
(b) Give advantages of different pattern materials? [8+8]
2. (a) Is there any difference in the tendency for shrinkage void formation for metals
with short and long freezing ranges, respectively? Explain.
(b) Make a list of safety considerations and precautions that should be taken
concerning all aspects of melting and casting of metals, including equipment
involved? [8+8]
3. (a) Why is it possible for fusion zone to have a chemistry that is different from
that of the filler metal? Explain.
(b) Sketch and explain various welding positions? Give their applications [8+8]
4. (a) Explain with neat sketch the forge welding process?
(b) Describe the types of fluxes used in soldering and their applications? [8+8]
5. (a) Explain the advantages of cold working. Name typical applications of cold
working.
(b) Explain hot rolling operations through
i. Two high reversing mill
ii. Three high mill
iii. Four high mill. [8+8]
6. (a) Describe production of seamless pipes and tubes.
(b) Explain rod and wire drawing processes. [8+8]
7. (a) Explain the effect of speed of deformation and friction on extrusion pressure.
(b) Describe extrusion process with neat sketch. [8+8]
8. (a) What are the good practices in the design of moulded plastic parts?
(b) Name the factors that influence the accuracy to which plastic parts can be
moulded.

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