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Posted Date: 07 Feb 2009 Posted By: Satya Reddy Member Level: Gold
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2008 Andhra Pradesh State Jawaharlal Nehru Technological University Code No: RR222002 II B.Tech Supplimentary Examinations, Aug/Sep 2008 MACHINE TOOL ENGINEERING[Set No. 3] Question paper
Code No: RR222002 Set No. 3
II B.Tech Supplimentary Examinations, Aug/Sep 2008
MACHINE TOOL ENGINEERING
(Production Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Describe basic elements of machining. [8]
(b) Explain briefly mechanics of chip formation. [8]
2. Write short notes on the following [4x4=16]
(a) Lathe carriage
(b) Cross slide
(c) Tool post
(d) Compound rest
3. (a) What is turret saddle? Describe its function in brief? [8]
(b) How are sizes of capstan and turret lathes specified? [8]
4. (a) Differentiate slotter and vertical shaper? [6]
(b) Describe constructional features of speed gearbox of planer? [10]
5. (a) Differentiate between taper, plug and bottoming taps. [6]
(b) What is the function of a tap drill? [5]
(c) Why are drilled holes superior to punched holes in vessel work? [5]
6. (a) Explain clearly what is meant by milling. [6]
(b) Give a brief classification of various milling machines used in the industry
giving a brief note on the application. [10]
7. (a) What is the classification method that could be used for grinding machines?
Give the application of each variety of grinding machines. [10]
(b) Explain the correct transverse setting for an external cylindrical grinding op-
eration showing the relationship of the wheel and the work. [6]
8. (a) What is lapping? What are its advantages? [6]
(b) Write a brief note on the following [10]
i. Equalising lapping
ii. Form lapping.
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