27438886-r05010301-Engineering-Chemistry - Code.No: 31012...

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SET-1 Code.No: 31012 JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD I .B.TECH –SUPPLEMENTARY EXAMINATIONS JANUARY- 2010 ENGINEERING CHEMISTRY (COMMON TO ME, MCT, MEP, AME) Time: 3hours Max.Marks:80 Answer any FIVE questions All questions carry equal marks - - - 1.a) What is hardness of water. How is the hardness of water determined Complexo metrically? b) Write a brief note on the sterilization of drinking water. [10+6] 2.a) What is boiler corrosion? How the scale and sludge formation prevented in boilers? b) Describe zeolite process of water softening. c) What is dissolved oxygen? How is it determined? [6+5+5] 3.a) Classify different types of corrosion. b) Explain electrochemical theory of corrosion. c) Write a brief note on corrosion control methods. [4+6+6] 4.a) Mention the differences between thermosetting and thermoplastic polymers. b) What is vulcanization? How is it carried out? What are the advantages of vulcanization rubber? c) How the surface of the material prepared for applying a protective coating? [ 5 + 5 + 6 ] 5.a) What are the functions of a lubricant. b) How do you determine viscosity and viscosity index of a lubricant? [6+10] 6.a) Write any three properties and applications of i) PVC ii) Polymethyl methacrylate iii) Silicone resins. b) Write notes on Lacquers and enamels.
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This note was uploaded on 02/28/2012 for the course BIO 101 taught by Professor Franklogiudice during the Spring '11 term at University of Central Florida.

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27438886-r05010301-Engineering-Chemistry - Code.No: 31012...

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