Engineering Materials exam (IPE 101) from the 2024 Level-1 Term-II finals at BUTEX affiliated colleges. Questions include cast iron types, atomic packing factor, fatigue and creep curves, corrosion prevention, Brinell hardness testing, and heat treatment.
Level-1 Term-II, Final Exám-2024
Subject: Engineering Materials (Code: IPE 101)
Time: 3.0 Hrs. Full Marks: 72
(Use separate answer script for Part: A and Part: B)
(All parts of a question must be answered consecutively)
Part: A
(Answer any three questions)
1. (a) What is cast iron? State the properties of nodular and malleable cast iron.
(b) What is atomic packing factor? Find out the atomic packing factor for body-center cubic crystal structure.
(c) How much force is required to punch a 20 mm diameter hole in a plate that is 25 mm thick? The shear strength is 350 MN/m^2.
[4+5+3=12]
2. (a) Define ductility, fatigue and resilience.
(b) Draw different types of S-N curves that can be obtained in fatigue test.
(c) Define creep. Draw a typical creep curve and explain the stage of creep.
[3+4+5=12]
3. (a) What are the difference between oxidation and corrosion?