09A1BS03 Engineering Chemistry B.Tech Question Paper : scce.ac.in

Name of the College : SREE CHAITANYA COLLEGE OF ENGINEERING
University : JNTUH
Subject Name : ENGINEERING CHEMISTRY
Year : I
Website : scce.ac.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/scce.ac.in/4894-09A1BS03-ENGINEERINGCHEMISTRY.pdf

Engineering Chemistry Question Paper :

I B.Tech Examinations,December -January, 2011-2012
Common to CE, ME, CHEM, BME, IT, MECT, MEP, AE, BT, AME, ICE, E.COMP.E, MMT, ETM, EIE, CSE, ECE, EEE, MIM, MIE

Related : Sree Chaitanya College Of Engineering 09A1BS06 Fundamentals Of Biology & Data Structures B.Tech Question Paper : www.pdfquestion.in/4887.html

Time: 3 hours
Max Marks: 75
Answer any five Questions :
All Questions carry equal marks :
1. (a) Give an account on Arrhenius theory of ionisation.
(b) What are potentiometric titrations? Explain their applications. [7+8]

2. (a) What is polyethylenephthalate? How it is manufactured? Explain its uses in fibre-manufacture.
(b) Write an account of preparation, properties and uses of thiokol rubber. [8+7]

3. (a) Write a short note on the following:-
i. Electodialysis
ii. Break-point Chlorination.
(b) Discuss the corrosion in boilers. [5+5+5]
4. Give an account of the analytical applications of colloids. [15]

5. Explain the following with suitable examples
(a) Condensed phase rule
(b) Pattinson’s desilverisation of lead. [8+7]

6. (a) Explain the corrosion of metals and the different types of corrosions.
(b) Give an account of electro chemical theory of corrosion. [6+9]
7. With help of a neat diagram explain the construction and working of Junker’s
calorimeter for the analysis of gaseous fuels. [15]

8. (a) What is superconductivity and its applications?
(b) Explain the phenomenon of the superconductivity. [7+8]

Code No: 09A1BS03 R09
Set No. 4
I B.Tech Examinations,December -January, 2011-2012
1. (a) How are metals protected by impressed current method?
(b) Explain the galvanisation and tinning processes of metals. [6+9]

2. (a) What is Vulcanization? Why is this carried out?
(b) Write a note on polyurethanes.
(c) Discuss the processing and engineering uses of natural rubber. [5+5+5]

3. Explain the following mechanisms with suitable illustrations.
(a) Fluid film lubrication.
(b) Extreme pressure lubrication.
(c) Boundary lubrication. [6+4+5]

4. (a) Write a note on single electrode potential and ion selective electrodes.
(b) Differentiate between reversible and irreversible cells.
(c) Define the term Transport number and explain how is it determined experimentally? [4+4+7]

5. Explain the Tyndal effect by Zsigmondy’s ultra microscope and electron microscope. [15]
6. Give proper explanations for the following statements
(a) The fusion curve of ice has a negative slope whereas the sublimation curve has positive slope in the phase diagram
(b) In lead-silver system, isobaric phase diagrams are studied. [7+8]

7. (a) What are the specifications of potable water?
(b) Write a short notes of break-point chlorination.
(c) Discuss the process of priming and foaming. [4+6+5]

8. Distinguish between the following:
(a) Gross calorific value from net calorific value.
(b) Thermal cracking from catalytic cracking.
(c) Gaseous fuels from liquid fuels. [6+5+4]

I B.Tech Examinations,December -January, 2011-2012 :
Engineering Chemistry :
1. (a) Differentiate the dry process from wet process of manufacture of cement.
(b) Give an account of setting and hardening of cement. [8+7]

2. (a) Explain the electro chemical theory of corrosion of metals with special reference to rusting of iron.
(b) Write a note on galvanizing and metal cladding. [8+7]
3. Differentiate the following with suitable illustration
(a) Phase rule from condensed phase rule
(b) Eutectic point from triple point. [7+8]

4. With the help of neat sketches explain the following processes.
(a) Bergeous process for synthesis of petrol.
(b) Fluidbed catalytic cracking. [8+7]
5. (a) Describe the zeolite process for softening of hard water.
(b) Discuss the methods for disinfectaion of water. [8+7]

6. Explain the synthetic methods, properties and applications of the following elastomers:-
(a) Buna-S rubber
(b) Butyl rubber
(c) Thiokol rubber. [5+5+5]
7. Write a detailed account on the following
(a) Quantum dots
(b) Applications of nanotechnology to medicine. [8+7]

8. (a) Describe the experimental method for the determination of the pH of a solution, using quinhydrone electrode.
(b) What are conductometric titrations? Explain their applications. [7+8]