Naturally occurring Gold has an FCC structure and has a density of 19.3g/cm3. The atomic mass of gold is 197g/mol. Calculate the atomic radius of gold.
[3 marks]Name at least one application of following engineering properties of material. (i) Hardness (ii) Toughness (iii) Creep Strength (iv) Plasticity (v) Stiffness
[4 marks]Write the procedure for Jominy end quench practical and discuss its conclusion.
[7 marks]Draw cooling curve of (i) pure metal and (ii) An alloy of two metals which are completely soluble in liquid and solid phase
[4 marks]Write full names of following acronyms: BHN ; AISI ; TTT
[3 marks]Explain and differentiate Edge dislocation and Screw dislocation with neat sketch.
[7 marks]Describe principle, advantages, limitations and applications of ultrasonic inspection.
[7 marks]With the aid of an iron- iron carbide equilibrium diagram. Show and explain eutectic, peritectic and eutectoid transformation. Also mention the significance of these transformations
[7 marks]List the characteristics required in dye material for dye penetration testing.
[4 marks]What is phase diagram? Explain Lever rule.
[7 marks]State composition and specific applications of : Muntz metal ; German silver ; Naval brass
[3 marks]What is Gibb’s phase rule? Calculate the degree of freedom, for eutectic composition in binary phase diagram.
[4 marks]Discuss the effect of adding nickel and chromium to steels.
[3 marks]Which are various surface hardening processes? Explain induction hardening process with sketch
[7 marks]Differentiate between Annealing process and Normalizing process.
[4 marks]Define critical cooling Rate of steel and show the same on a TTT diagram with labels
[7 marks]Explain in Brief “Types of Diffusion”
[3 marks]Explain imperfections in crystal with neat sketches.
[4 marks]What do you mean by allotropy of metal? Discuss allotropy of Iron
[3 marks]Describe principle, procedure and use of X-Ray Radiography
[7 marks]Define Unit cell and draw (111) and [101]
[3 marks]Enlist methods of manufacturing metal powder. Discuss any one in detail
[4 marks]Explain the mechanism of twining with suitable sketches
[3 marks]State Hume -Rothery rules for solid solution
[4 marks]Which are the merits and demerits and application of powder metallurgy
[7 marks]