NivaarExam PrepOfficial exam papers ↗

22-Mec-B8 Engineering Materials: May 2013

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

  1. Question 1 Material selection for a new narrow-body airliner body
  2. Question 2 Heat-treatment schemes for 1080 steel using the TTT diagram
  3. Question 3 ABS versus phenolic for an engine-mounted box
  4. Question 4 Two galvanic corrosion problems
  5. Question 5 Composition of a barium-borate glass-ceramic
  6. Question 6 Necking of a ductile wire — Considère’s criterion
  7. Question 7 E-glass/PVC composite — modulus, load sharing and strain
  8. Question 8 Weight saving from an aluminium–lithium floor beam

Start with Question 1 →

Paper format. National Exams, May 2013 — 07-Mec-B8 Engineering Materials. Three hours, open book; any non-communicating calculator permitted. Eight questions, all of equal value; any FIVE constitute a complete paper, so each question is worth 20 marks. Candidates are urged to state any assumptions made. All eight questions are solved below, because the set as a whole is the study resource.

Reference texts (22-Mec-B8 Engineering Materials).

  • Askeland & Wright, The Science and Engineering of Materials, 7th ed. — the primary syllabus text.
  • Callister & Rethwisch, Materials Science and Engineering: An Introduction, 10th ed.
  • Shackelford, Introduction to Materials Science for Engineers, 8th ed. — ceramics, glasses and glass-ceramics.
  • Dieter, Mechanical Metallurgy, 3rd ed. — true stress–strain and the necking instability.
  • Fontana, Corrosion Engineering, 3rd ed. — galvanic series and the area effect.
  • Ashby, Materials Selection in Mechanical Design, 5th ed. — selection criteria and material indices.