Explain the following material properties: Ductility, Creep, Fatigue, Resilience, Hardness.
[5 marks]Discuss selection criteria for materials used in engineering applications.
[5 marks]Explain the different methods for Grain size measurement.
[5 marks]Write a Hume-Rothery rules for Substitutional Solid solution formation.
[5 marks]Calculate the APF for BCC structures.
[5 marks]Draw iron- carbon diagram and mention all major elements.
[5 marks]Outline major mechanical property requirements of bicycle wheel axle
[5 marks]Write short note on Ni- Cr alloy Steels.
[5 marks]Write short note on Nodular Cast Iron.
[5 marks]Explain the NDT method widely used for inspection of castings.
[5 marks]Explain in detail Radiography testing method along with its advantages, disadvantages.
[5 marks]Describe Magnetic Particle Test principle and advantages.
[5 marks]Describe Ultrasonic Testing Method and also mention its advantages and Limitations.
[5 marks]Define Heat Treatment and classify heat treatment processes.
[5 marks]Explain with a neat sketch Time-Temperature-Transformation (TTT) diagram for a eutectoid composition steel.
[5 marks]With proper justification choose appropriate heat treatment process for gear used in gearbox of car and explain the selected heat treatment process in detail.
[5 marks]Discuss mechanisms of quenching of steel. State the advantages and drawbacks of water & oil as quenching media.
[5 marks]