Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 4th Sem New 2142107 Iron Making Previous Question Paper
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?IV (NEW) EXAMINATION ? WINTER 2018
Subject Code:2142107 Date:12/12/2018
Subject Name:Iron Making
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) What is the role of coke and limestone in iron making? Explain. 03
(b) What is PCI in terms of Iron making? How it is benefiting in terms
of increasing productivity & quality of Iron production?
04
(c) Draw a clear detailed view of Blast Furnace showing different
temperature zones & label the reactions occurring in different zone
07
Q.2 (a) What is the reducing agent in the blast furnace? 03
(b) What is humidification of blast furnace? 04
(c) Classify various testing methods of Raw materials & Explain
Evaluation of Iron Ore.
07
OR
(c) Why agglomeration (Nodulising) of iron ore is necessary. Define
sinter and pallet
07
Q.3 (a) Explain different variety of iron ore (In Fe %), their occurrences in
India.
03
(b) What is sintering? Discuss the mechanism of sintering process. 04
(c) Draw Neat diagram of Bell less charging system& explain
importance of it.
07
OR
Q.3 (a) What is basicity? Discuss importance of maintaining basicity in Iron
making.
03
(b) What is Slag? How it is formed? Explain its importance in Iron
making Process.
04
(c) What are different refractory material used in different zones of blast
furnace& Cowper stove ?Justify them.
07
Q.4 (a) Explain effects and advantages of high top pressure in blast furnace
Iron making.
03
(b) What is palletisation? Explain theory of bonding and mechanism of
ball formation in palletisation.
04
(c) What is ?external desulphurization? and explain any one method of
external desulphurization.
07
OR
Q.4 (a) Classify various testing methods of Raw materials
In Iron making.
03
(b) Discuss use of high temperature blast and its effect on coke rate
and metal-impurity distribution in slag and metal
04
(c) What is humidification of blast in iron making? Discuss its
advantages.
07
Q.5 (a) Write short note on Pig Casting Machine. 03
(b) Draw & List only operational steps of blast furnace. 04
(c) What are different alternative iron making processes? Explain Midrex
process
07
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?IV (NEW) EXAMINATION ? WINTER 2018
Subject Code:2142107 Date:12/12/2018
Subject Name:Iron Making
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) What is the role of coke and limestone in iron making? Explain. 03
(b) What is PCI in terms of Iron making? How it is benefiting in terms
of increasing productivity & quality of Iron production?
04
(c) Draw a clear detailed view of Blast Furnace showing different
temperature zones & label the reactions occurring in different zone
07
Q.2 (a) What is the reducing agent in the blast furnace? 03
(b) What is humidification of blast furnace? 04
(c) Classify various testing methods of Raw materials & Explain
Evaluation of Iron Ore.
07
OR
(c) Why agglomeration (Nodulising) of iron ore is necessary. Define
sinter and pallet
07
Q.3 (a) Explain different variety of iron ore (In Fe %), their occurrences in
India.
03
(b) What is sintering? Discuss the mechanism of sintering process. 04
(c) Draw Neat diagram of Bell less charging system& explain
importance of it.
07
OR
Q.3 (a) What is basicity? Discuss importance of maintaining basicity in Iron
making.
03
(b) What is Slag? How it is formed? Explain its importance in Iron
making Process.
04
(c) What are different refractory material used in different zones of blast
furnace& Cowper stove ?Justify them.
07
Q.4 (a) Explain effects and advantages of high top pressure in blast furnace
Iron making.
03
(b) What is palletisation? Explain theory of bonding and mechanism of
ball formation in palletisation.
04
(c) What is ?external desulphurization? and explain any one method of
external desulphurization.
07
OR
Q.4 (a) Classify various testing methods of Raw materials
In Iron making.
03
(b) Discuss use of high temperature blast and its effect on coke rate
and metal-impurity distribution in slag and metal
04
(c) What is humidification of blast in iron making? Discuss its
advantages.
07
Q.5 (a) Write short note on Pig Casting Machine. 03
(b) Draw & List only operational steps of blast furnace. 04
(c) What are different alternative iron making processes? Explain Midrex
process
07
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2
OR
Q.5 (a) Which company is the world's largest producer of iron ore?
03
(b) Difference between direct reduction & Indirect reduction in iron
making process.
04
(c) What are irregularities in blast furnace operations? Explain Pillaring
and Scaffolding.
07
*************
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This post was last modified on 20 February 2020