STUPIDSID
Answer any four from the following:
1 (a)
Discuss the allotropic modifications of pure Iron.
5 M
1 (b)
Define fracture and discuss various types of fracture.
5 M
1 (c)
What are dislocations? Classify them and discuss any one of them.
5 M
1 (d)
What is nitriding? How is it practised?
5 M
1 (e)
What are composites? Give a classification of composites.
5 M
2 (a)
What is deforming? Explain the slip mode of deformation.
7 M
2 (b)
Define Fatigue. Draw the S-N curve and explain its interpretation.
7 M
2 (c)
Derive an expression for CRSS.
6 M
3 (a)
Draw a neat and labelled Fe-Fe3C diagram.
7 M
3 (b)
Discuss the cooling of 0.4%C steel.
6 M
3 (c)
Explain the method of carburizing; also give example of parts that are carburized.
7 M
4 (a)
State Griffith's criteria of brittle fracture and derive the equation.
7 M
4 (b)
Draw neat and labelled micro-structures of grey cast iron, 0.8%C steel and low carbon steel.
7 M
4 (c)
Define Hardenability and discuss factors affecting it.
6 M
5 (a)
What are the various methods used for processing of polymers? Explain any one in detail.
7 M
5 (b)
What are High speed steels? How are they heat treated?
7 M
5 (c)
How are stainless steels classified? Discuss their properties and applications.
6 M
Write short notes on any four:
6 (a)
Recrystallisation annealing
5 M
6 (b)
Stages of Creep
5 M
6 (c)
Methods used for nano materials synthesis.
5 M
6 (d)
TTT diagram and its importance
5 M
6 (e)
Types of Cast irons.
5 M
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