You need to explain the "why" behind material selection. Be prepared to discuss: Carbon content in steel. Annealing, hardening, and tempering processes.
Keep a cheat sheet of formulas for cutting speeds, feed rates, and gear ratios. mechanical technology 91 question paper exclusive
Safety is always the first section. Expect questions on PPE, workshop layout, and the Occupational Health and Safety (OHS) Act. Regular maintenance schedules for lathes and milling machines are also frequent topics. 2. Materials and Heat Treatment You need to explain the "why" behind material selection
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A significant portion of the paper involves applied mathematics. Focus your revision on: mechanical technology 91 question paper exclusive