List of top Metallurgical Engineering Questions on Metallurgy

Identify the INCORRECT statement(s)
Compared to top gating, the effect(s) of bottom gating in sand mold casting is/are
Match the processes in Column I with the corresponding applications in Column II.
Column I
(P) Fused salt electrolysis
(Q) Carbothermal reduction
(R) Oxidation-refining
(S) Matte converting
Column II
(1) Ironmaking
(2) Aluminium extraction
(3) Copper extraction
(4) Steelmaking
Match the welding techniques in Column I with the most appropriate applications in Column II.
Column I
(P) Submerged arc welding
(Q) Electroslag welding
(R) Shielded metal arc welding
(S) Resistance spot welding
Column II
(1) Thick sections
(2) Surfacing and repair
(3) Thin sheets
(4) Flat position
Which of the following is/are the role(s) of coke in a blast furnace?
Match the transport processes in Column I with the relationships in Column II.
Column I
(P) Molecular momentum transport
(Q) Molecular mass transport
(R) Molecular energy transport
(S) Radiation energy transport
Column II
(1) Stefan-Boltzmann law
(2) Newton's law of viscosity
(3) Fick's law
(4) Fourier law
For supersonic O\(_2\) jet in basic oxygen furnace steelmaking, choose the correct combination from the following:
(1) Converging-diverging nozzle
(2) Diverging-converging nozzle
(3) O\(_2\) velocity greater than sound velocity at nozzle throat (Mach number > 1)
(4) O\(_2\) velocity equal to sound velocity at nozzle throat (Mach number = 1)
(5) Exit O\(_2\) jet pressure \(\ge\) atmospheric pressure
(6) Exit O\(_2\) jet pressure \(<\) atmospheric pressure
The non-destructive testing technique(s) for detecting internal defects in a steel component is/are
The condition(s) for high degree of mutual substitutional solid solubility for two metals is/are
A liquid of density 900 kg m\(^{-3}\) is flowing over a flat plate with a free stream velocity of 0.1 m s\(^{-1}\). The laminar boundary layer thickness at a distance of 0.2 m from the leading edge of the plate is 0.007 m. The viscosity of the liquid in centipoise is ................... (round off to 2 decimal places).
Given: 1 centipoise = 10\(^{-3}\) kg m\(^{-1}\)s\(^{-1}\)
The rate constant of a reaction at 400 K is three times the value at 300 K. The activation energy of the reaction in kJ mol\(^{-1}\) is ................... (round off to 1 decimal place).
Given: Universal gas constant, R = 8.314 J mol\(^{-1}\)K\(^{-1}\)
Which of the following is/are responsible for reducing the high cycle fatigue life of a component?
Among the following options, a process for liquid-liquid separation is
The most effective concentration step for sulfide ores is
The gas distribution in a blast furnace is controlled by the shape of
Magnitude of Burgers vector of the dislocation resulting from reaction of dislocations with Burgers vectors \( \frac{a}{2}[101] \) and \( \frac{a}{2}[0\bar{1}\bar{1}] \) is
For laminar fluid flow through a smooth circular tube, the relation between friction factor (\(f\)) and Reynolds number (\(Re\)) is