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LUBRICANTS, 1. Define Lubricant. What are the characteristics of good lubricants?, 2. What are the functions of good lubricants? Discuss the classification of Lubricants., , 3. Mention the conditions under which we use Solid Lubricants. Write short note on the, structure of Graphite., , 4. Write short note on the structure of Molybdenum disulphide., 5. What are greases? Discuss its properties, types and characteristics., 6. Give preparation of greases. Mention the conditions under which we can use greases., , 7. What are Lubricating oils? Differentiate between conducting and non-conducting, Lubricating oils., , 8. What do you mean by Synthetic Lubricating oils? Give examples. Discuss, characteristics features Synthetic Lubricating oils., , 9. Define Viscosity Index. How we can determine the viscosity index of lubricants? How, can we increase the viscosity index of oil?, , 10. Write short note on Cloud point. Write short note on Pour point.