Question Paper Code : 20917
B.E./B.Tech. DEGREE EXAMINATIONS, NOVEMBER/DECEMBER 2023.
First Semester
Civil Engineering
CY 3151 — ENGINEERING CHEMISTRY
(Common to : All Branches (Except Marine Engineering))
(Regulations 2021)
Answer ALL questions.
PART A — (10 × 2 = 20 marks)
- 1.
What are the causes for sludges and scales in the boilers?
- 2.
Differentiate the zeolite process with demineralization technique.
- 3.
Give the distinction between nano materials and bulk materials.
- 4.
Give a brief description about the electrochemical deposition.
- 5.
With an example, write about the one component system.
- 6.
State the salient features of hybrid composites.
- 7.
Write the importance of octane number in the relevant fuel.
- 8.
Give a brief note on the spontaneous ignition temperature.
- 9.
Highlight the important applications of solar cells.
- 10.
Highlight the salient features of microbial fuel cell.
PART B — (5 × 16 = 80 marks)
- 11.(a)
Explain the municipal water treatment in accordance with the break point chlorination.
- Or
- (b)
Explain the treatments involved in boiler feed water by the important internal conditioning aspects.
- 12.(a)
Discuss in a detailed manner about the properties and uses of nanoclusters and nanowires.
- Or
- (b)
Discuss in a detailed manner about the chemical vapour deposition and electro spinning.
- 13.(a)
Elaborate in systematic manner about the construction of a simple eutectic phase diagram.
- Or
- (b)
Elaborate in a stepwise manner about the construction of metal matrix and polymer matrix.
- 14.(a)
Summarize the manufacture of metallurgical coke by the Otto Hoffmann method.
- Or
- (b)
Summarize in a specific manner on the Orsat method for the flue gas analysis.
- 15.(a)
Elaborate in a suitable way about the recent developments in soar cell materials.
- Or
- (b)
Explain in a specific manner on the light water nuclear power plant.