STUPIDSID
1 (a)
Explain process to be followed for preparation of metallic specimen to see the microstructure under optical microscope. Name only commonly used etchant.
7 M
1 (b) (i)
Define following properties of engineering materials.
[i] Hardenability
[ii] Toughness
[iii] Stiffness and
[iv] Ductility
[i] Hardenability
[ii] Toughness
[iii] Stiffness and
[iv] Ductility
4 M
1 (b) (ii)
Draw any three most commonly observed space lattice structure in metallic elements.
3 M
2 (a) (i)
Define Powder metallurgy. Enlist methods of metal power manufacturing.
3 M
2 (a) (ii)
Discuss any one metal powder manufacturing methods in detail.
4 M
Answer any one question from Q2 (b) or Q2 (c)
2 (b)
Discuss importance of knowledge on "Material Science & Metallurgy" to Mechanical Engineers.
7 M
2 (c)
What is Galvanic series? Explain cathodic protection method for prevention of corrosion.
7 M
Answer any two question from Q3 (a), (b) or Q3 (c), (d)
3 (a)
Draw iron - iron carbide equilibrium diagram. Show important phases in it. Discuss the phase transformation takes place for the 0.6 % carbon steel from liquid to room temperature. Explain Structure properties relationship of 0.6 % steel at room temperature.
10 M
3 (b)
Draw microstructure of [i] Nodular cast iron [ii] eutectoid steel at room temperature along with magnification, etchant used and description of microstructure.
4 M
3 (c)
What is solid solution? What are the types? Explain them with neat sketch. Under which condition interstitial solid solution is feasible?
7 M
3 (d)
It is require finding out hardenability of an alloy steel. Explain procedure to be followed to find out and the equipment required for the same.
7 M
Answer any two question from Q4 (a), (b) or Q4 (c), (d)
4 (a)
It is required to find out surface defects for the cast product. Which NDT process you will use? Explain basic principle and limitations of the test you have selected.
7 M
4 (b)
Discuss advantages and limitations of Powder Metallurgy.
7 M
4 (c)
Classify different types of cast iron. Why silicon is added to cast iron? Explain the effects of any four alloying elements on the properties of cast iron.
7 M
4 (d)
What is the purpose of Heat Treatment? Differential between Annealing and normalizing.
7 M
Answer any two question from Q5 (a), (b) or Q5 (a), (b)
5 (a)
Enlist case hardening processes. Discuss induction hardening process along with advantages, limitations and any two applications
7 M
5 (b)
Define critical cooling rate of steel. Discuss the TTT diagram with complete labeling.
7 M
5 (c)
Enlist copper and its alloys. Explain any two of them along with its properties and use.
7 M
5 (d) (i)
Differentiate between Austempering and Mertempering.
3 M
5 (d) (ii)
Differentiate between edge dislocation and screw dislocation.
4 M
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