Engineering Materials paper (IPE 101) from BUTEX affiliated colleges' 2022 Level-1 Term-II finals. Covers mild steel stress-strain curves, iron-iron carbide diagrams, FCC atomic packing for copper, fatigue S-N curves, creep stages, corrosion control, and ceramics.
Level-1 Term-II, Final Exám-2022
Subject: Engineering Materials (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) Draw stress-strain curve of mild steel and label it properly. (b) Briefly discuss the effect of impurities on cast iron. (c) Draw the iron-iron carbide equilibrium diagram labeled with the common names for the structure. | [3+3+6 = 12] |
2. (a) State crystal structure & crystal defects. (b) Differentiate between crystalline solid and amorphous solid. (c) Define atomic packing factor. Find the atomic packing factor of Cu atoms. Note that Cu atoms have FCC crystal structure. |