biology - Set No. 1 Code No: RR10104 I B.Tech Supplimentary...

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Code No: RR10104 Set No. 1 I B.Tech Supplimentary Examinations, Aug/Sep 2008 APPLIED CHEMISTRY (Civil Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆ ⋆ ⋆ ⋆ ⋆ 1. (a) What is corrosion? How is it diferent From erosion? Explain the term passivity with suitable examples. [8] (b) Give an account oF the oxidation corrosion with relevant chemical equations involved. [8] 2. Diferentiate the Following with suitable examples (a) Cathodic coatings with anodic coatings. [8] (b) Metal cladding and metal spraying. [8] 3. Present an account oF the composition and advantages oF the Following organic coatings (a) Enamels [5] (b) Distempers [6] (c) Lacquers. [5] 4. Describe the structure, preparation and uses oF (a) Bakelite [8] (b) Nylon (6,6) [8] 5. (a) Explain the phenomena oF scale and sludge Formation in boilers. [8] (b) Discuss the lime-soda process For soFtening oF hard water. [8] 6. (a) Explain the term “municipal water”. [4] (b) Summarize the treatment processes used to obtain municipal water. [4] (c) Calculate the lime and soda in Kgs required to soFten 30,000 litres oF water containing CaSO 4 = 136 ppm, MgCl 2 = 95 ppm, Ca(HCO 3 ) 2 = 162 ppm & Mg(HCO 3 ) 2 = 73 ppm. [8] 7. (a) Outline the important characteristics oF reFractories. [8] (b) Diferentiate between the diferent types oF insulating materials. [4] (c) Explain the use oF silicone ±uids as insulating materials. [4] 8. Explain the dry process For the manuFacture oF cement and chemical composition oF cement. [16] ⋆ ⋆ ⋆ ⋆ ⋆ 1 oF 1
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Code No: RR10104 Set No. 2 I B.Tech Supplimentary Examinations, Aug/Sep 2008
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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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biology - Set No. 1 Code No: RR10104 I B.Tech Supplimentary...

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