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23-Ind-B2 Manufacturing Processes: December 2015

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

  1. Question 1 Steel vs. Cast Iron, Property-Governing Factors, and the Effect of Alloying and Heat Treatment
  2. Question 2 Trends in Casting Industries, Plaster-Mold Casting, and Expandable-Mold Design Considerations
  3. Question 3 Turning Cutting Speed and Material Removal Rate, Metal Chip Types, and Built-Up Edge
  4. Question 4 Extrusion and Injection Molding of Plastics, Typical Products, and Reinforced-Plastic Design Characteristics
  5. Question 5 Welding-Process Selection, Oxyacetylene/Arc/Resistance Welding, and Cutting Processes
  6. Question 6 Residual Stress in Welding, Joint/Process Selection Factors, and Future Trends in Welding
  7. Question 7 Statistical Process Control, Acceptance Sampling/AQL, and the Deming and Taguchi Methods

Start with Question 1 →

National Exams — December 2015 — 98-Ind-B2 Manufacturing Processes. Closed book; candidates may use one of two calculators, the Casio or Sharp approved models. Any five of the seven questions constitute a complete paper; all questions are of equal value (20 marks each). Answers are written in point form but fully, with all calculations shown, as instructed. Complete answers to all seven questions follow.

Reference texts: Groover, Fundamentals of Modern Manufacturing: Materials, Processes, and Systems, 6th ed. — material selection, casting, metal-cutting theory, welding processes, and automation/numerical control; Montgomery, Introduction to Statistical Quality Control, 8th ed. — where quality-control concepts are referenced.