HEAT TREATMENT OF STEEL - EXAMINATION QUESTIONS

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1. What is meant by the lower and upper critical points, in terms of the heat treatment of steel? 4 marks

2. What is ‘normalising’ of steel? Explain / describe the ‘normalising’ process, with reference to steel. Include notes and a sketch(s) 8 marks

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3. What is ‘annealing’ of steel? Explain / describe the ‘annealing’ process, with reference to steel. Include notes and a sketch(s) 8 marks