Download JNTUK B-Tech 2020 R19 ME 1204 Engineering Chemistry Model Question Paper

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[Code : B19BS1204]
RAJU ENGINEERING
I B.Tech II Semester (R19) Regular Examinations.
ENGINEERING CHEMISTRY
(Common to CE & ME)

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MODEL QUESTION PAPER
Answer ONE Question from EACH UNIT.
All questions carry equal marks.
Max. Marks : 75M

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UNIT -1
1. a). What is hardness? How it is determined by EDTA method? Explain.
b). Describe with equations how water can be softened using Lime & Soda Process

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OR
2. a). Discuss various sterilizing methods used in municipal water treatment.
b). Illustrate the reverse osmosis Process with a neat diagram.
UNIT - II
3. a). Explain the Proximate analysis of coal and give its significance.

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b). Explain the fractional distillation of crude oil.
OR
4. a). Write notes on (i)Knocking (ii)CNG
b). How Synthetic Petrol can be prepared by Bergius Process.
UNIT - III

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5. a). Explain the mechanism of electrochemical-theory of corrosion with neat diagram.
b). Describe briefly about cathodic Protection.
OR
6. a). Explain Hydrogen — Oxygen fuel cell with neat cell diagram
b). Discuss on various constituents of Paint.

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UNIT - IV
7. a). Explain the mechanism of free radical Polymerization reaction with a suitable example.
b). Distinguish between thermoplastics and thermosetting resins.
OR
8. a). What are conducting Polymers? Discuss the applications of conducting Polymers.

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b). Write notes on Bu Na — S and Bu Na — N.
UNIT -V
9. a). Discuss chemistry involved in setting and hardening of cement?
b). What are refractories? Discuss the classification of refractories.
OR

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10. a). Write detailed account of various types of ceramics, their Properties and uses.
b). What are insulators? How are they are classified? Give examples.


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