09A51805 Iron Production B.Tech Question Paper : sphoorthyengg.com
Name of the College : Sphoorthy Engineering College
University : JNTUH
Department : Metallurgy And Material Technology
Subject Code/Name : 09A51805/IRON PRODUCTION
Year : December 2011
Degree : B.Tech
Year/Sem : III/I
Website : sphoorthyengg.com
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/sphoorthyengg.com/4812-09A51805-IRONPRODUCTION.pdf
Iron Production Question Paper :
III B.Tech I Semester Examinations,December 2011
Time: 3 hours
Max Marks: 75
Related : Sphoorthy Engineering College 09A51806 Welding Technology B.Tech Question Paper : www.pdfquestion.in/4811.html
Answer any FIVE Questions :
All Questions carry equal marks :
1. (a) Describe the procedure for charging a newly lined blast furnace.
(b) Explain Fanning and Back draughting. [7+8]
2. (a) Define sponge iron? Compare sponge iron and pig iron?
(b) Explain the chemistry of direct reduction process.
(c) Critically discuss on applications of sponge iron. [5+5+5]
3. (a) Discuss about the iron ore occurrences in India and in the world.
(b) How are the values of iron ores evaluated? [7+8]
4. (a) Draw the relevant H2=H2O verses temperature curves for various iron oxides and discuss them.
(b) What are the advantages of H2 as a reducing agent?
(c) Compare and contrast direct and indirect reduction of iron ore. [5+5+5]
5. (a) What are the advantages of beneficiation of iron ores?
(b) Describe induration of pellets in a shaft kiln. [7+8]
6. (a) What are the dierences between HYL process and SLRN process of sponge iron production?
(b) Describe KRUPP-RENN process. [7+8]
7. How are the following calculated with respect to blast furnace?
(a) Useful volume and total volume
(b) Bosh and stack angle
(c) Useful height and total height
(d) Number of tuyers. [15]
Write short notes on:
8. (a) Iron making in India
(b) Sponge iron making in India. [7+8]
Code No: 09A51805
R09 Set No. 4
1. (a) What is sponge iron? What are its other names?
(b) Classify the dierent sponge iron making processes.
(c) What are the uses and advantages of sponge iron? [5+5+5]
2. What are the factors that are to be considered for the design of a blast furnace?
Explain them in detail. [15]
3. (a) Describe plasma smelting process.
(b) What are the merits and demerits of the above process?
(c) Compare plasma smelting process & COREX process. [5+5+5]
4. What are the salient features of physical chemistry of the distribution of elements in the molten metal and slag? [15]
5. (a) List out the principal achievements made in modern blast furnace practice.
(b) Explain the improvements made in the coke.
(c) Explain the advantages and disadvantages of using large capacity blast furnace. [5+5+5]
6. Describe sponge iron production by MIDREX process. [15]
7. (a) Compare and contrast the production mechanism of sinters and pellets.
(b) Explain the advantages and disadvantages of sinter and pellets used in iron making by a blast furnace. [7+8]
8. (a) What is smelt reduction?
(b) Classify the smelt reduction processes.
(c) What are the advantages of smelt reduction process? [5+5+5]
III B.Tech I Semester Examinations,December 2011 :
Iron Production :
1. (a) How many types of sponge iron production methods are there? Name them.
(b) Explain production of sponge iron using solid reluctant. [7+8]
2. Write short notes on :
(a) Sponge production in India
(b) Draw backs of Direct Reduction process
(c) Advantages of sponge iron. [5+5+5]
3. (a) Dene pelletisation? Describe the different water-particle systems.
(b) Compare and contrast disc pelletiser and drum pelletiser. [7+8]
4. Write short notes on :
(a) Future of smelting reduction process.
(b) Advantages and disadvantages of smelt reduction process. [15]
5. Write short notes on :
(a) Paul wurth bell-less system of charging.
(b) Scaolding. [15]
6. (a) Explain RIST diagram.
(b) Explain the reactions in the bosh region of the blast furnace. [7+8]
7. (a) Draw a neat sketch of blast furnace. Label all its parts.
(b) Discuss about the changes in the prole of the blast furnace.
(c) What are the functions of
i. Bleeder valve
ii. Bustle pipe. [5+5+5]
8. (a) What are the various raw materials used for iron production? Explain their
i. Size and Size distribution
ii. Composition merits.
(b) What are the various methods adopted in the improvement of quality of ore supplied to blast furnace? [8+7]