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04-BS-11: May 2018

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

  1. Question 1 Silver Crystal Structure, Density, and Planar Packing
  2. Question 2 Polymer Molecular Weight, Crystallinity, and Thermoplastic vs. Thermoset Processing
  3. Question 3 Cold Work and Annealing — Hardness Response of Brass
  4. Question 4 Galvanic Concentration Cell and Carbon Diffusion in Steel
  5. Question 5 Fiber-Reinforced Composite Load Sharing and Minimum Radius Ratio for CN 4
  6. Question 6 ASTM Grain Size Number and Hall–Petch Yield Strength
  7. Question 7 Borosilicate Glass Design and Cermets

Start with Question 1 →

National Exam 04-BS-11, Properties of Materials — May 2018. 3 hours, closed-book examination (approved Casio or Sharp calculator only). Notes on the paper state that any five questions constitute a complete paper and only the first five questions appearing in the answer book are marked, with all questions of equal value. All seven questions are solved below for completeness.

Reference texts: Callister & Rethwisch, Materials Science and Engineering: An Introduction, 9th ed. (crystal structure and packing, polymer molecular weight, cold work and annealing, corrosion and diffusion, composites, ceramic glasses).