Extractive Metallurgy MCQ Questions and Answers

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Enhance your knowledge of Extractive Metallurgy with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Extractive 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-7 section-1

The Al₂O₃ content of cryolite in Hall-Heroult's cell is maintained between

A) 2 - 5% B) 18 - 20% C) 12 - 15% D) 6 - 12%

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Hydrometallurgy is a process of extraction in which extraction of metal is done

A) High grade copper ore B) Lean oxide and mixed copper ore C) The place, where electricity is cheap D) None of these

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Percentage of nickel present in concentrated Ni ore is

A) 0.5 - 2% B) 1.20% C) 10% D) None of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Which metal is extracted by leaching?

A) Iron B) Aluminium C) Lead D) Gold

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Mattee smelting is used in the extraction of

A) lead B) zinc C) aluminium D) copper

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

If supposed speed of rotation of ball mill is too much high, then what force generally take place inside the container.

A) Centrifuging B) Cataracting C) Cascading D) None of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Process of extraction of Zn is

A) Electrolytic B) Imperial smelting C) Both A and B D) None of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In a roasting process, the set of conditions that favour sulphate formation from metal sulphide concentrates are.
P. high temperature
Q. high partial pressure of oxygen
R. use of excess air
S. high partial pressure of SO₃

A) P, R and S B) P, Q and R C) Q and S D) R and S

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What are the uses of Manganese

A) Manganese (IV) oxide is used as a catalyst B) As an oxidizing agent C) used to make fertilisers and ceramics D) All are correct

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Match the extraction methods in Group 1 with the metals in Group 2.

Group 1	Group 2
P. Roasting followed by carbothermic reduction	1. Ti
Q. Electrolysis of fused salt	2. Pb
R. Roasting followed by controlled oxidation	3. Al
S. Halide process	4. Cu
	5. Au

A) P-2, Q-3, R-4, S-1 B) P-5, Q-4, R-3, S-1 C) P-2, Q-5, R-1, S-4 D) P-3, Q-2, R-5, S-1

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

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Extractive Metallurgy MCQ Questions and Answers | Metallurgical Engineering