07a1ec08 Metallurgical Analysis

Set No. 1

Code No: 07A1EC08

I B.Tech Regular Examinations, May/Jun 2008 METALLURGICAL ANALYSIS (Metallurgy & Material Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Explain the terms: (a) Molarity (b) Normality (c) Molality

[16]

2. (a) Explain the analysis of cryolite flux. (b) In detail discuss the salient points in analysing iron blast furnace slag. [8+8] 3. Discuss the procedure in determining silicon in plain carbon steels.

[16]

4. (a) What are the main reactions which are involved while determining tungsten in steel. (b) Explain the process of determining nickel and iron by electrolysis.

[4+12]

5. (a) Explain the different methods of assaying ores having reducing power. (b) Give the method of assay of ores containing nickel and cobalt.

[8+8]

6. (a) Draw and explain the working principle of fisher electrophotometer. (b) Explain with neat sketch an instrument which incorporates photo electric cells. [8+8] 7. (a) Draw and explain the working principle of Cambridge potentiometer. (b) Explain the nature of mass spectra and fragmentation pattern.

[8+8]

8. Explain the working principle of Pulfrich photometer with neat sketches.

[16]

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Set No. 2

Code No: 07A1EC08

I B.Tech Regular Examinations, May/Jun 2008 METALLURGICAL ANALYSIS (Metallurgy & Material Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Explain the terms: (a) Molarity (b) Normality (c) Molality

[16]

2. Elaborately explain the analysis of lime stone, dolomite and magnesite.

[16]

3. (a) Explain in detail the determination of manganese by gravy metric method. (b) Discuss the method of determining manganese by volumetric method. [8+8] 4. (a) Give the procedure to determine nickel in permanent magnet alloys. (b) Write the procedure to determine chromium in steel by ammonium sulphate method. [8+8] 5. (a) Explain the different methods of assaying ores having reducing power. (b) Give the method of assay of ores containing nickel and cobalt. 6. Mention the theories of absorptiometry and explain any two.

[8+8] [16]

7. (a) Explain Potentiometric titration of a HCl-H3 PO4 mixture. (b) Discuss the DC Arc Emission Spectroscopy for metallic impurities. 8. Explain the working principle of Pulfrich photometer with neat sketches. ⋆⋆⋆⋆⋆

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[8+8] [16]

Set No. 3

Code No: 07A1EC08

I B.Tech Regular Examinations, May/Jun 2008 METALLURGICAL ANALYSIS (Metallurgy & Material Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. Explain the terms: (a) Molarity (b) Normality (c) Molality

[16]

2. Explain the analysis of neutral flux fluorspar.

[16]

3. Discuss the procedure in determining silicon in plain carbon steels.

[16]

4. (a) List out various methods to determine molybdenum in iron and steel. Briefly explain any one. (b) List out various methods to determine tungsten in iron and steel. Briefly explain any one. [8+8] 5. (a) Explain the different methods of assaying ores having reducing power. (b) Give the method of assay of ores containing nickel and cobalt.

[8+8]

6. (a) Draw and explain the orsat apparatus for gas analysis. (b) Draw the boys gas calorie meter in determining the calorific value of gas and also explain the same. [8+8] 7. (a) Draw and explain the working principle of Cambridge potentiometer. (b) Explain the nature of mass spectra and fragmentation pattern.

[8+8]

8. What are the three methods of quantitative analysis in flame photometric analysis? Explain any two in detail. [16] ⋆⋆⋆⋆⋆

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Set No. 4

Code No: 07A1EC08

I B.Tech Regular Examinations, May/Jun 2008 METALLURGICAL ANALYSIS (Metallurgy & Material Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ⋆⋆⋆⋆⋆ 1. (a) Bring out the importance of chemical analysis in various industries citing one example of an industry. (b) List out and explain the factors on which the choice of methods are made for chemical analysis. [8+8] 2. Elaborately explain the analysis of lime stone, dolomite and magnesite.

[16]

3. (a) In general explain with neat sketch volumetric method and electrolytic method. (b) Explain in detail determination of manganese by calorie metric method. [8+8] 4. (a) How to estimate vanadium in high chromium nickel steels. (b) Elaborately present the procedure to determine tungsten in stainless steels containing titanium. [8+8] 5. (a) Explain the different methods of assaying ores having reducing power. (b) Give the method of assay of ores containing nickel and cobalt. 6. Mention the theories of absorptiometry and explain any two.

[8+8] [16]

7. (a) Draw and explain the working principle of Cambridge potentiometer. (b) Explain the nature of mass spectra and fragmentation pattern.

[8+8]

8. (a) Describe inorganic polarography. (b) Describe organic polarography. ⋆⋆⋆⋆⋆

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[8+8]