Download JNTUK (Jawaharlal Nehru Technological University Kakinada (JNTU kakinada)) B-Tech 2020 R19 CE 1204 Engineering Chemistry Model Previous Question Paper
[Code : B19BS1204]
I B.Tech II Semester (R19) Regular Examinations.
ENGINEERING CHEMISTRY
(Common to CE & ME)
MODEL QUESTION PAPER
Time : 3Hrs. Max. Marks :75M
Answer ONE Question from EACH UNIT.
All questions carry equal marks.
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CO KL M
UNIT - I
1. a). What is hardness? How it is determined by EDTA method? Explain. 1 1 8
b). Describe with equations how water can be softened using Lime & Soda Process 1 2 7
OR
2. a). Discuss varis sterilizing methods used in municipal water treatment. 1 2 8
b). Illustrate the reverse osmosis Process with a neat diagram. 1 2 7
UNIT - II
3. a). Explain the Proximate analysis of coal and give its significance. 2 2 8
b). Explain the fractional distillation of crude oil. 2 2 7
OR
4. a). Write notes on (i)Knocking (ii)CNG 2 1 8
b). How Synthetic Petrol can be prepared by Bergius Process. 2 1 7
UNIT - III
5. a). Explain the mechanism of electrochemical theory of corrosion with neat
diagram.
3 2 8
b). Describe briefly abt cathodic Protection. 3 2 7
OR
6. a). Explain Hydrogen ? Oxygen fuel cell with neat cell diagram 3 2 8
b). Discuss on various constituents of Paint. 3 6 7
UNIT - IV
7. a). Explain the mechanism of free radical Polymerization reaction with a suitable
example.
4 2 8
b). Distinguish between thermoplastics and thermosetting resins. 4 4 7
OR
8. a). What are conducting Polymers? Discuss the applications of conducting
Polymers.
4 1 8
b). Write notes on Bu Na ? S and Bu Na ? N. 4 1 7
UNIT - V
9. a). Discuss chemistry involved in setting and hardening of cement? 5 6 8
b). What are refractories? Discuss the classification of refractories. 5 1 7
OR
10. a). Write detailed accnt of varis types of ceramics, their Properties and uses. 5 1 8
b). What are insulators? How are they are classified? Give examples. 5 1 7
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This post was last modified on 28 April 2020