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04-BS-11: May 2017

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

  1. Question 1 Schmid’s Law; Loading of a Nickel Wire
  2. Question 2 Cesium Chloride — Structure, Density, and X-ray Verification
  3. Question 3 Diffusion — Units of $D$ and a Ceramic Barrier Lifetime
  4. Question 4 Molecular Weights of a Polypropylene Sample
  5. Question 5 ASTM Grain Size; Strain Hardening and Annealing of Aluminum
  6. Question 6 Heat Treatment of a 0.45% Carbon Steel; Jominy Test; Casting Porosity
  7. Question 7 Ceramics, Glasses, and Composites

Start with Question 1 →

National Exam 04-BS-11, Properties of Materials — May 2017. 3 hours, closed-book examination (approved Casio or Sharp calculator only). Any five of the seven questions constitute a complete paper (only the first five in the answer book are marked); all questions are of equal value. All seven questions are solved below for completeness.

Reference texts: Callister & Rethwisch, Materials Science and Engineering: An Introduction, 9th ed. (dislocations and slip / Schmid’s law, mechanical behaviour, ionic crystal geometry and the radius-ratio rule, X-ray diffraction, diffusion and Fick’s laws, polymer molecular weight, ASTM grain size, strengthening and annealing, steel heat treatment and hardenability, casting defects, ceramics, glasses and composites).