www.annauniv.edu Anna University Model Question Papers

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Anna University ( annauniv.edu )
B.E. DEGREE EXAMINATION.
Second Semester
Mechanical Engineering
CM 132 — CHEMISTRY — II
Model Question Papers
(Common to Metallurgical Engineering and Mechatronics Engineering)

Time : Three hours Maximum : 100 marks
Answer ALL questions.

PART A — (10 ? 2 = 20 marks)
1. What is the significance of heat treatment of steel? How is achieved?
2. Which of the following are extensive property? Viscosity, Surface tension, Energy, Mass, Refractive index.
3. Which of the following is a bivariant?
An ordinary gas, saturated solution of sodium chloride, water water vapour.
4. Explain a Moulding Powder.
5. What are the methods used for manufacture of metal powder?
6. How properties of the resins can be varied?
7. Will the following reaction in aqueous phase feasible? Why?
Cu + Zn SO4 Cu SO4 + Zn
8. What are the common compositions of Brass and Nickel Bronze?
9. How wood's metal is manufactured using powder metallurgy?
10. What are the raw materials used for the manufacture of glass?

PART B — (5 ? 16 = 80 marks)
11. (i) Define law of Mass Action. (4)
(ii) Explain Electroworking. (6)
(iii) Explain briefly the glass and fibre composites of polymer. (6)
12. (a) Enumerate the conclusions drawn from Ellingham diagram for oxides of any metal alloy with limitations. (16)
Or
(b) (i) Derive the relationship between enthalpy, entropy and free–energy.
(6)
(ii) Write a note on refractory materials. (10)
13. (a) (i) Explain Sheet–Moulding Compound Technique. (10)
(ii) Write a note on Polymer blends. (6)
Or
(b) Explain the role of Moulding Compounds used in the preparation of plastics. (16)
14. (a) How corrosion is prevented by
(i) Cathodic protection and (8)
(ii) Metallic coatings. (8)
Or
(b) (i) What are the factors affecting chemical corrosion? Explain briefly.
(8)
(ii) Explain compacting and sintering methods of metal powder and their effects. (8)
15. (a) Explain Phase–Diagram of Iron–Carbon system. (16)
Or
(b) Explain the various methods used to extract metal from their ores.

Civil Engineering
AG 151 — ENGINEERING GEOLOGY

PART A — (10 ? 2 = 20 marks)
1. Describe the internal structure of the earth.
2. Give the earthquake belts of India.
3. Define isometric system of crystals.
4. Give the physical properties of Mica.
5. What are metamorphic rocks?
6. Define ‘Gneissose structure’.
7. What are outcrops?
8. Describe electrical resistivity survey.
9. What are rotational slides?
10. Explain the advantages of remote sensing techniques in geological investigations.

PART B — (5 ? 16 = 80 marks)
11. Elaborate on the geological conditions required for locating tunnels with neat diagrams.
12. (a) Describe the various types of weathering of rocks.
Or
(b) Discuss in detail about the geological work of rivers.
13. (a) Elaborate on the various physical properties which are helpful in the identification of minerals.
Or
(b) Explain the physical properties of Feldspar group of minerals.
14. (a) What are sedimentary rocks? Explain the properties of any
FOUR sedimentary rocks.
Or
(b) Describe the engineering properties of rocks? Give the engineering properties of important igneous and metamorphic rocks.
15. (a) Explain the parts of faults with a neat diagram. Describe the important types of faults with neat diagrams.
Or
(b) What are folds? Explain the types of folds with diagrams and their bearing on the engineering constructions.


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www.annauniv.edu/academic/m021.doc