Steel Making in Metallurgy MCQ Questions and Answers

Steel Making in Metallurgy MCQ Questions and Answers | Metallurgical Engineering

Enhance your knowledge of Steel Making in Metallurgy with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Steel Making in Metallurgy are specifically designed for students of Metallurgical Engineering who are preparing for the GATE Exam. Strengthen your preparation and excel in your studies with this valuable resource. Page-3 section-1

Acidic iron is also known as

A) Swedish iron B) Thomas iron C) Molten iron D) Cast iron

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Answer & Solution

Answer: Option A

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What are the applications of 321 Austenitic stainless steel?

A) Heat Exchanger B) Boiler pipe C) Boiler cover D) All are correct

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Answer & Solution

Answer: Option D

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Slag basicity of LD slag is-

A) 0.01 to 0.05 B) 0.5 to 1 C) 2 to 3.5 D) 4 to 6.5

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Answer & Solution

Answer: Option C

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The nozzle used in the lance of LD steel making process is

A) convergent B) convergent-divergent C) divergent D) divergent-convergent

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Answer & Solution

Answer: Option B

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Modern electric arc furnace uses

A) low current high voltage B) high current high voltage C) high current low voltage D) low current low voltage

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Answer & Solution

Answer: Option A

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Which one of the following factors is not desirable for effective phosphorus removal in BOF steel making process?

A) Higher FeO level in slag B) Higher basicity C) Higher temperature D) Lower temperature

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Answer & Solution

Answer: Option C

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Which one of the following processes is performed for inclusion modification in ladle metallurgy of steel making?

A) Aluminium wire injection B) Calcium wire injection C) Oxygen top blowing D) Oxygen bottom blowing

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Answer & Solution

Answer: Option B

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In maraging steels, carbon is present as an impurity and is generally kept below . . . . . . . . percent.

A) 0.03 B) 0.1 C) 1.0 D) 0.5

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Answer & Solution

Answer: Option A

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Which of the following elements is used as austenite stabilizer in 18 - 8 stainless stee

A) Cr B) Ni C) Mo D) V

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Answer & Solution

Answer: Option B

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Liquid steel (300 metric tons) initially containing 0.03 mass% sulfur, is desulphurised with calcium (1000kg) according to the reaction, Ca + [S] = Ca S. The slag (1 metric ton) lying on top of metal contains (in mass%) 50% CaO, 25% SiO₂ and the rest is Al₂O₃. Only 10 mass% of the CaO injected reacts with the sulfur and the rest escapes as gas into the atmosphere.
What will be the final sulfur content, in mass% in liquid steel?

A) 0.003 B) 0.0010 C) 0.0033 D) 0.0066

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Answer & Solution

Answer: Option D

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