GATE MT exam:gate PYQs & Answers — Page 48

Questions 471–480 of 650. Imported answers require independent review unless marked reviewed.

Topic practice 650 questionsPage 48 of 65

The variation of standard free energies for two oxides AO and BO with temperature are shown below.

Diagram for Metallurgical Engineering question 6

The correct statement with reference to the above figure is

Your answerChoose one option.

AO is a gas

BO is a gas

A will reduce BO above temperature T₁

B will reduce AO below temperature T₁

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Terminal rise velocity of a spherical shaped solid in a liquid obeys the following functional relationship:

Where,

is the terminal rise velocity,

is the diameter of the solid,

is the apparent weight of the solid,

is the viscosity of liquid and

is the density of liquid. According to Buckingham Π theorem, the number of independent dimensionless variables needed to describe the phenomenon is

Your answerChoose one option.

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Consider electrodeposition of copper on a copper electrode from an aqueous solution containing

CuSO₄. Given: Faraday constant,

per gram equivalent. Assume transport of reactant is rate limiting, and mass transfer coefficient is

. The limiting current density (in

) is

Your answerChoose one option.

4.83

9.65

19.30

38.60

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The correct sequence of steelmaking operations is [BOF: Basic Oxygen Furnace; LF: Ladle Furnace; VD: Vacuum Degassing; CC: Continuous Casting].

Your answerChoose one option.

BOF → LF → VD → CC

CC → BOF → LF → VD

VD → CC → BOF → LF

LF → BOF → VD → CC

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The common ore of titanium is

Your answerChoose one option.

Bauxite

Chalcopyrite

Cassiterite

Ilmenite

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Coarse suspended particles are to be separated from a flowing gas in a dust catcher. All factors remaining same, maximum gas-solid separation is expected from the dust catcher shown below.

Your answerChoose one option.

Diagram for Metallurgical Engineering question 11

Diagram for Metallurgical Engineering question 11 (figure 2)

Diagram for Metallurgical Engineering question 11 (figure 3)

Diagram for Metallurgical Engineering question 11 (figure 4)

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The Boudouard (or, carbon gasification) reaction is ____________.

Your answerChoose one option.

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The fastest diffusing element in iron at 1100 °C is ____________.

Your answerChoose one option.

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Hydrogen bonds are stronger than ____________.

Your answerChoose one option.

Ionic bonds

Metallic bonds

van der Waals bonds

Covalent bonds

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The carbide that is primarily responsible for intergranular corrosion in austenitic stainless steel is ____________.

Your answerChoose one option.

Cr₃C₆

Fe₃C

SiC

Mn₃C

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GATE MT exam:gate PYQs

Question 6

Question 7

Question 8

Question 9

Question 10

Question 11

Question 12

Question 13

Question 14

Question 15