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04-BS-11: May 2015

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

  1. Question 1 Miller Indices of Planes A & B; FCC Rhodium Density
  2. Question 2 True Strain Derivations & the Brinell Hardness Test
  3. Question 3 Brick Mass Loss on Dehydration; How Bricks Are Made
  4. Question 4 Ethylene–Propylene Copolymer Molecular Weight; Fastener Stress Relaxation Life
  5. Question 5 Reading the Diffusivity Chart; Phosphorus Diffusion Flux in Silicon
  6. Question 6 The Jominy Test; Isothermal Heat Treatments of Eutectoid Steel
  7. Question 7 NDT for Subsurface Weld Cracks; Headlight Filament Forensics; Toughening Ceramics

Start with Question 1 →

National Exam 04-BS-11, Properties of Materials — May 2015. 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 seven questions are solved below for completeness.

Reference texts: Callister & Rethwisch, Materials Science and Engineering: An Introduction, 9th ed. (crystal structure, mechanical behaviour, diffusion, polymers, phase transformations, nondestructive testing).