Jawaharlal Nehru Technological University Hyderabad 2003 B.Tech Metallurgy and Material Technology I Supplementary s, ember- METALLURGICAL ANALYSIS - exam paper

Code No:NR-11801

I B.Tech. Supplementary Examinations, November-2003

METALLURGICAL ANALYSIS
(Metallurgy and Material Technology)
Time: three hours Max. Marks: 80
ans any 5 ques.
All ques. carry equal marks
- - -

1.a) What is Sampling? explain the scope and methods of Sampling ores.
b) Differentiate ranging from Molarity and Molality.

2. Discuss the importance and basic principles of chemical analysis of
(a) ores and (b) slags.

3.a) Explain the general principles involved in fire assaying.
b) What is the role of reagents and fluxes used in fire assaying?

4.a) Discuss the steps involved in the estimation of iron in iron ore.
b) Explain the methods of estimation of carbon and silicon in steel.

5.a) What are the advantages of physico-chemical methods of analysis?
b) Discuss different Calorimetric techniques.

6.a) Explain how Cr and Ni in alloy steels estimated.
b) Describe briefly estimation of lime in limestone.

7.a) Discuss the principle involved in absorptiometry.
b) Compare amperometric titration method with potentiometric titration method.
c) Explain the difference ranging from single beam and double beam spectrometer.

8. Write short notes on any 4 of the following:
(a) Polarography
(b) Proximate analysis of coal
(c) Analysis of Fire clay.
(d) Photometry.
(e) Role of PH in analytical methods

Earning:   Approval pending.