Question Paper Code : 60027
B.E./B.Tech. DEGREE EXAMINATIONS, APRIL/MAY 2022.
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.
Give a brief note on BOD and COD.
- 2.
Write the reasons for the caustic embrittlement in boilers.
- 3.
Write about the important categories of nano-materials.
- 4.
Give a brief description about the sol-gel principle.
- 5.
State about the requisites of composite materials.
- 6.
Write the concept of hybrid composites.
- 7.
Give a brief note on power alcohol and bio diesel.
- 8.
Write about the spontaneous ignition temperature.
- 9.
List out the important applications of solar cells
- 10.
Give a brief note on the microbial fuel cell.
PART B — (5 × 16 = 80 marks)
- 11.(a)
Explain the process of desalination of brackish water by the reverse osmosis method.
- Or
- (b)
Write the detailed description about the municipal water treatment process.
- 12.(a)
Write in detail about the preparation of nano-materials by electro spinning technique.
- Or
- (b)
Explain on the application of nano-materials in electronics and catalysis.
- 13.(a)
Explain the properties and applications of metal matrix composites.
- Or
- (b)
Explain the properties and applications of polymer matrix composites.
- 14.(a)
Explain the manufacturing method of synthetic petrol by Bergius process.
- Or
- (b)
Explain the flue gas analysis by the Orsat method.
- 15.(a)
Give the detailed description about the recent development in the solar cell materials.
- Or
- (b)
Explain the principle and the working process of lithium-ion battery.