Explain criteria for selection of engineering materials.
[7 marks]What is the significance of study of Metallurgy?
[3 marks]Give difference between Metal and Non-metals.
[4 marks]Explain various point defects found in ionic crystals. What is the effect of these defects on the properties of ionic materials?
[7 marks]Write difference between Crystalline solid and non-crystalline solid. What is meant by ‘Amorphous Material’?
[3 marks]Determine APF for FCC crystal structure.
[4 marks]Explain Edge dislocations with the help of neat sketches.
[7 marks]State advantages and disadvantages of powder metallurgy.
[4 marks]Define metallography. Differentiate between micro and macro structure of materials.
[3 marks]What are the advantages of Austempering and mar tempering?
[4 marks]What is powder metallurgy? Describe methods of manufacturing metal powder briefly.
[7 marks]List various non-destructive tests. Explain general advantages and disadvantages of Non-destructive tests.
[3 marks]Suggest and explain a simple and economical NDT method to determine minute surface defects in large size component.
[7 marks]Explain in brief Ductile failure of metal.
[4 marks]Differentiate between annealing and tempering.
[3 marks]Explain optical metallurgical microscope with neat sketch.
[4 marks]What is a critical nucleus? What is significance of critical radius of a solidifying particle?
[7 marks]What are the purposes of alloying?
[3 marks]Draw iron carbon equilibrium diagram.
[7 marks]What is heat treatment of steel? What is its objective?
[4 marks]State critical reactions of iron carbon phase diagram.
[3 marks]Define allotropy. Explain allotropy of iron.
[4 marks]Draw TTT diagram for steel.1
[7 marks]Differentiate between hardness and harden ability of steel.
[3 marks]Explain solid or pack carburizing process with its limitations.
[7 marks]