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Material Science & Engineering — Major (End Semester) 2023 question paper

MMMUT Mechanical Engineering previous year question paper for Material Science & Engineering (BME-103), semester 1, Major (End Semester) 2023. All 24 questions are listed below, each with a written answer on Nexsus.

Paper details

  • Subject: Material Science & Engineering (BME-103)
  • Branch: Mechanical Engineering
  • Semester: 1
  • Exam: Major (End Semester) 2023
  • Questions: 24

Questions asked in Material Science & Engineering Major (End Semester) 2023

  1. Q1. Attempt any Five parts of the following
  2. Q1(a). Explain simple cubic (SC), body centered cube (BCC) and face centered cube (FCC) with the help of neat sketch [2 marks]
  3. Q1(b). What do you mean by ductile and brittle material? Draw stress strain diagram for mild steel [2 marks]
  4. Q1(c). What do you mean by atomic packing factor? Calculate the atomic packing factor for the BCC crystal structure [2 marks]
  5. Q1(d). What is corrosion? Briefly describe the different forms of corrosion [2 marks]
  6. Q1(e). What do you understand by heat treatment process? Explain the effect of cooling rate in heat treatment process [2 marks]
  7. Q1(f). Explain Tempering process [2 marks]
  8. Q1(g). What do you mean by Non-ferrous metal? [2 marks]
  9. Q2. Attempt any Two parts of the following
  10. Q2(a). What is difference between crystal structure and crystal system? Explain the different crystal system with the help of neat sketch [5 marks]
  11. Q2(b). What do you mean by Miller indices? Sketch (012) and (111) planes within a cubic unit cell [5 marks]
  12. Q2(c). Differentiate between Frenkel defect and Schottky defect with the help of neat sketch [5 marks]
  13. Q3. Attempt any Two parts of the following
  14. Q3(a). Why is sample preparation required for microstructural examination? Explain the steps for sample preparation for microstructural examination [5 marks]
  15. Q3(b). Draw a neat sketch of iron- iron carbide diagram and explain the various phases present in it [5 marks]
  16. Q3(c). What do you mean by toughness? Explain various toughness testing with the help of neat sketch [5 marks]
  17. Q4. Attempt any Two parts of the following
  18. Q4(a). Draw the TTT diagram for eutectoid steel and explain important transformation taking place in it on cooling [5 marks]
  19. Q4(b). What do you mean by Aluminum alloy? Explain the various types of Aluminum alloy and their applications [5 marks]
  20. Q4(c). What are the different types of cast iron? Explain their general properties and applications [5 marks]
  21. Q5. Attempt any Two parts of the following
  22. Q5(a). What is the basic mechanism of super conduction? Explain Type-I and Type-II super conductors with suitable curves and examples [5 marks]
  23. Q5(b). How is conductivity influenced by mobility of electrons and holes? Differentiate between and n-type and p-type semiconductors [5 marks]
  24. Q5(c). What are smart materials? Explain the properties and applications of Piezo electric material [5 marks]