August T24/TML064/EE/20150818 2015 Engineering Materials -2 Instructions: MARKS-80 Time: 3 Hrs 1. All questions are compulsory. 2. “Long Answer type Question (LAQ)” is a supply type question of 15 marks which required a typical answer of about 60-80 lines in bout 32-40 minutes. 3. “Sort Answer type Question (SAQ)” is a supply type question of 5 marks which required a typical answer of about 15-20 lines in bout 08-10 minutes. 4. Figures to the right indicate marks allotted to the questions. 5. Assume suitable data if necessary 6. Use a nonprogrammable type of scientific calculator is allowed Marks SECTION-A Q.1 Explain primary water, secondary water & physical water characteristics. OR 15 Q.1 Explain the concept of corrosion testing with suitable example in detail. 15 Q.2 Give short note on i) Pitting Corrosion ii) Uniform Corrosion iii) Corrosion characteristics 15 OR Q.2 Classify and explain metal casting operations. 15 Q.3 How can you prevent an object from corroding? 5 Q.4 Define stainless steel metallurgy. 5 SECTION-B Q.5 Explain the following terms i) High-Energy Process ii) Diffusion Process iii) Organic Coatings 15 OR Q.5 Explain the following terms i) Ore Dressing ii) Pre-refinement iii) Extraction 15 Q.6 Write note in brief Preventing Wear Failures. 15 OR Q.6 Write note in brief Preventing Mechanical Failures. 15 Q.7 Define Brasses and bronzes with application. 5 Q.8 What are the different types of mechanical failure? 5 Computer Generated Random Question Paper dated: 17-07-2015 16:52:24 ***BEST OF LUCK***