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04-BS-11: December 2013

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Schmid's Law and a Nickel Wire Under Load
  2. Question 2 Silver — FCC Density, Atomic Radius, and Planar Packing
  3. Question 3 Be–Si Eutectic System — Solidification and Eutectic Fraction
  4. Question 4 Diffusion Activation Energy from Two Temperatures
  5. Question 5 Melt Index and PTFE Chain Statistics
  6. Question 6 Center-Cracked Panel — Fracture and Fatigue Life
  7. Question 7 Ceramic Strength, Glass Network Modifiers, and Composite Design
  8. Question 8 Heat Treatment of a 0.35%C Steel; Austempering; 2024 Aluminum Tempers

Start with Question 1 →

National Exam 04-BS-11, Properties of Materials — December 2013. 3 hours, closed-book examination (approved Casio or Sharp calculator only). Any five questions constitute a complete paper; only the first five questions as they appear in the answer book are marked. All eight questions are solved below for completeness.

Reference texts: Callister & Rethwisch, Materials Science and Engineering: An Introduction, 9th ed. (crystal structure, diffusion, mechanical behaviour, polymers, fracture/fatigue, phase diagrams, heat treatment).