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Anna University CAMPUS Placement cognizant 2013 passing Out students

Anna University Dec 2012 Maths 3 m3 Reexam issue full Details

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TN +2 october 2012 results

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ANNA UNIVERSITY OF TECHNOLOGY TRICHY (2007,2008 REGULATION) MAY/JUNE 2012 REVISED TIME TABLE CLICK HERE (AFFILIATED COLLEGES AND UNIVERSITY DEPARTMENTS) FOR BE AND BTECH

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ANNA UNIVERSITY 1ST,3RD,5TH,7TH SEMESTER SYLLABUS 2008 REGULATION

ANNA UNIVERISTY CHEMISTRY 1 QUESTION BANK DOWNLOAD

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B.E./B.Tech. DEGREE EXAMINATION, MAY/JUNE 2009.
ANNA UNIVERSITY CHEMISTRY 1 PREVIOUS YEAR QUESTION PAPER DOWNLOAD
First Semester
CY 2111 — ENGINEERING CHEMISTRY — I
(Common to all branches except Marine Engineering)
(Regulation 2008)
Time : Three hours Maximum : 100 marks
Answer ALL questions.
PART A — (10 × 2 = 20 marks)
1. How is the hardness of water expressed?
2. What are the disadvantages of scale formation?
3. How is polymerization classified? Give one example for each class.
4. Write any two uses of PVC.
5. Define the terms adsorbent and adsorbate giving suitable examples.
6. What is an adsorption isotherm?
7. What is nuclear energy? Explain using a suitable example.
8. List any two advantages of lithium batteries.
9. Mention any four natural abrasives.
10. How are lubricants classified? Give one example for each class.


PART B — (5 × 16 = 80 marks)


11. (a) (i) Describe briefly the various methods of internal conditioning of boiler feed water. (10)
(ii) 100 ml of a water sample required 20 ml of 0.01 M EDTA for the titration with Eriochrome Black-T indicator. 100ml of the same water sample after boiling and filtering required 10 ml of 0.01 M EDTA. Calculate the total, carbonate and non carbonate hardness of the sample. (6)
Or
(b) (i) Explain the necessity for sterilization of domestic water and discuss the various methods of sterilization. Discuss in detail about the break point chlorination. ( 10)
(ii) Describe the reverse osmosis method for desalination of sea water with a neat sketch. (6)


12. (a) (i) Write the preparation properties and uses of PET and polyurethane. (8)
(ii) Write a note on FRP. (8)
Or
(b) (i) Distinguish between addition and condensation polymerization. (8)
(ii) Write the mechanism of free radical polymerization. (8)
13. (a) (i) What are the factors that influence the adsorption of gases on
solids? Discuss in detail. (8)
(ii) Explain the role of adsorption in catalysis using an appropriate
example. (8)
Or
(b) (i) Derive the Langmuir’s adsorption isotherm and discuss the effect of
pressure on the isotherm. (12)
(ii) Illustrate how the ion exchange adsorption is useful in the
demineralization of water (only the process without diagram). (4)
14. (a) (i) What are the components of a nuclear reactor? Write briefly about
each component. (10)
(ii) Discuss the characteristics of the reaction when uranium undergoes
nuclear fission. (6)
Or
(b) (i) Describe the principle and functioning (charging and discharging)
of lead acid battery. (10)
(ii) Write a note on wind energy. (6)
15. (a) (i) Give a brief account of neutral refractories. (6)
(ii) What are grinding wheels? How are they manufactured? (10)
Or
(b) (i) Discuss the following properties of lubricants.
(1) Flash point. (5)
(2) Pour point. (5)
(ii) Explain the properties and applications of carbon nanotubes. (6)
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