Material Science and Metallurgy 2022 Question Paper — Government Coll…
The 2022 Material Science and Metallurgy previous year question paper (Government College of Engineering and Technology, Jammu), with every question and its marks.
- University: Government College of Engineering and Technology, Jammu
- Subject: Material Science and Metallurgy
- Course: Material Science & Metallurgy
- Branch: Mechanical Engineering
- Year: 2022
- Paper: end-term
- Duration: 180 minutes
- Total marks: 75
Instructions
- Attempt any five questions selecting atleast two questions from each section.
- Assume missing data, if any.
- Each question carries equal marks.
Questions
Section - A
- Q1. Define crystal structure and name the crystal systems commonly found in crystalline solids.
- Q2. What is closed-packed structure in crystals? Briefly describe the difference between face-centered cubic(FCC) and hexagonal close-packed(HCP) structures.
- Q3. Explain Gibbs' phase rule and its application in determining the number of degrees of freedom in a two-component system.
- Q4. Copper has an FCC structure and an atom radius of 1.278 A. Calculate its density. Given atomic weight of cooper as 63.5 g/mol and Avogadro's number as $0.602 \times 10^{24}$ atoms/mol.
Section - B
- Q5. What is a T-T-T(Time-Temperature-Transformation) diagram? Explain how it is used to determine the heat treatment processes for carbon steels.
- Q6. Describe the difference between annealing, normalizing and hardening heat treatment processes for carbon steels. How does each process impact the microstructure and mechanical properties of steel?
- Q7. Differentiate between elastic, inelastic and viscoelastic behavior in metals.Provide examples of where each type of behavior might be observed.
- Q8. Describe the mechanism of plastic deformation in metals.Explain the role of slip planes and slip directions in this process.