Here are some tips for your 2nd Test..
1. There will be 3 questions. Answer all questions.
2. One question on chapter 4: reasons for surface treatment and coating, mechanical surface treatment, electroless plating, etc
3. One question on chapter 5: IC def and adv, general facbrication sequence, oxidation process.
4. Another question from chapter 6: def of HSM, req and important factors, non contact bearing.
Have a nice day good luck.