STUPIDSID
Answer any one question from Q1 and Q2
1 (a)
What is work hardening? Explain the property variation with proper graph before and after work hardening.
6 M
1 (b)
Explain the advantages of composite materials over conventional materials with suitable example.
4 M
1 (c)
Differentiate between thermoplastic and thermosetting polymers.
2 M
2 (a)
Differentiate between slip and twinning.
4 M
2 (b)
Show the self explanatory diagram for point defects.
2 M
2 (c)
Explain any one method of polymer processing, with suitable diagram.
4 M
2 (d)
What are Cermets ?
2 M
Answer any one question from Q3 and Q4
3 (a)
With a neat diagram explain fatigue fracture in detail.
4 M
3 (b)
Define toughness, Notch sensitivity.
2 M
3 (c)
What is mint by transducer, explain the respective NDT method makes the use of sound waves.
4 M
3 (d)
What are the advantages of Dye Penetrant test over the other NDT methods.
2 M
Write true or false and justify your answer.
4 (a)
Creep fracture is a transgranular fracture.
3 M
4 (b)
Erichson cupping test is used for sheet metals only.
3 M
4 (c)
For checking the hardness of phases in metals, Rockwell C scale is used.
3 M
4 (d)
In a brass component subsurface defect can be easily determined by magnetic particle test.
3 M
Answer any one question from Q5 and Q6
5 (a)
Explain atomization process with neat diagram used in powder production.
4 M
5 (b)
Describe with a suitable flow chart manufacturing of cemented carbide tool.
4 M
5 (c)
Explain the mechanism of sintering, and what is liquid phase sintering.
4 M
5 (d)
What is spring back.
1 M
6 (a)
Describe with a suitable flow chart manufacturing of oil impregnated bearings.
4 M
6 (b)
What is sintering? Explain the stages of sintering.
4 M
6 (c)
What are the disadvantages of powder Metallurgy over other conventional process.
4 M
6 (d)
What is mint by green strength of a compact.
1 M
Write short note on:
7 (a) (i)
Biosensors.
3 M
Answer any one question from Q7 and Q8
7 (a) (ii)
Shape memory alloy.
3 M
7 (a) (iii)
Nano material and their applications.
3 M
7 (a) (iv)
Soft & Hard magnetic materials.
3 M
7 (b)
Suggest suitable material for the replacement of heart valves.
1 M
8 (a)
Piezoelectric materials are smart materials explain in detail.
4 M
8 (b)
What are the property requirements in the materials / metals used for cryogenic application and suggest the suitable materials for the same.
5 M
8 (c)
Define following (any two):
i) Biomaterials.
ii) Superconductivity.
iii) Super alloy.
i) Biomaterials.
ii) Superconductivity.
iii) Super alloy.
4 M
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