STUPIDSID
Solve any one question from Q.1(a,b,c) &Q.2(a,b, c)
1(a)
Show the following planes on a cubic cell (222), (110).
4 M
1(b)
Define the following:
i) Co-ordination number
ii) Hot working.
i) Co-ordination number
ii) Hot working.
4 M
1(c)
Materials like A1 shows more plastic deformation by the slip mechanism than twining. Explain in detail.
4 M
2(a)
No. of atoms per unit cell in FCC metal is 4 explain with mathematical proof.
3 M
2(b)
What is Polymer and how its molecular structure is different than metals? Explain.
3 M
2(c)
What do you understand by crystal impperfection? Explain the Edge dislocation with a neat diagram.
6 M
Solve any one question from Q.3(a,b) &Q.4(a,b,c,d)
3(a)
Compare and contrast between:
i) Dye penetrant test and Ultrasonic test
ii) Brinell harness tester and Rockwall hardeness tester.
i) Dye penetrant test and Ultrasonic test
ii) Brinell harness tester and Rockwall hardeness tester.
6 M
3(b)
One Assembly is made with nuts and bolts used for joining them. Where the probability of corrosion is more? Which type of corrosion is probable in this type? Explain can it be avoided.
7 M
4(a)
Draw the self-explanatory diagram for the following:
i) Stress-strain diagram for Cast Iron
ii) S-N diagram for Cu.
i) Stress-strain diagram for Cast Iron
ii) S-N diagram for Cu.
4 M
4(b)
For checking internal defects in brass component which NDT methods are used, justify your answer.
3 M
4(c)
Pitting corrosion is most dangerous amongst all types of corrosion do you agree with this statement? Justify your answer.
4 M
4(d)
In Anodic and Cathodic Inhibitors which is more protective, explain.
2 M
Solve any one question from Q.5(a,b) &Q.6(a,b,c,d)
5(a)
Explain with neat diagram physical vapor deposition. State its advantages, disadvantages and applications over other processes.
6 M
5(b)
What are different characteristics of surface improvements? Explain in brief.
6 M
Solve any three question from Q.6(a,b,c,d)
6(a)
Anodising
4 M
6(b)
Electroplating
4 M
6(c)
Ion implantation
4 M
6(d)
CVD.
4 M
Solve any one question from Q.7(a,b) &Q.8(a,b,c)
7(a)
What is the best suitable process for manufacturing of oil impregnated bearings? Explain its advantages over other manufacturing processes.
7 M
7(b)
Explain importance of sintering with its different stages to get required strength to green compact.
6 M
8(a)
Define the following:
i) Green Spring
ii) Tap density.
i) Green Spring
ii) Tap density.
4 M
8(b)
Write flo-chart of production of Tungsten cemented carbide tool.
3 M
8(c)
What are the different techniques used for compaction? Explain Isostatic compaction in detail.
6 M
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