The task of choosing between forging, casting, and powder metallurgy for a product in a House of Quality falls under the purview of _____

The task of choosing between steel, aluminum, and titanium for a product in a House of Quality falls under the purview of ______

A

Technical descriptors

B

Customer requirements

C

Relationship matrix

D

Benchmarking

Engineering stress-strain curve for a metal under two conditions. A and B, are shown is the following figures. Identify the correct statement.
Miscellaneous in Metallurgy mcq question image

Miscellaneous in Metallurgy mcq question image

A

The resilience of the material is the same in conditions A and B

B

The resilience of the material is higher in condition B than in condition A

C

The toughness of the material is higher in condition A than in condition B

D

The toughness of the material is higher in condition B than in conditon A

The figure below shows water flowing through a pipe. The pressure difference between points P and Q measured using a water-over-mercury manometer is
Miscellaneous in Metallurgy mcq question image

A

ρ₂gH

B

ρ₁gH

C

(ρ₂ - ρ_₁) gH

D

(ρ₂ - ρ₁) gH

A furnace wall is made of three materials (I, II and III) of equal thickness and having thermal conductivity k₁ k₂ and k₃ respectively. The steady state temperature profile inside each material is shown in the figure. Thermal conductivities of the materials will vary as
Miscellaneous in Metallurgy mcq question image

A

k₁ > k₂ > k₃

B

k₂ > k₁ > k₃

C

k₃ > k₁ > k₂

D

k₃ > k₂ > k₁

An alloy of overall composition, X_B = 0.7 was equilibrated at temperature T₁. Microstructural analysis showed two phases, (α and β, and that the phase fraction of β was 0.75. Given that the equilibrium composition of β at Ti is 0.9 as shown in the phase diagram below, the maximum solubility of B in α (in mole fraction) at this temperature is . . . . . . . .
Physical Metallurgy mcq question image

A

0.05

B

0.10

C

0.50

D

0.85

A furnace wall consists of four layers of different materials, M₁, M₂, M₃ and M₄. If the layers are of equal thickness and the steady state temperature profiles is as shown below, then the material with the lowest thermal conductivity is
Miscellaneous in Metallurgy mcq question image

A

M₁

B

M₂

C

M₃

D

M₄

Consider the below statements. (i) Quality is defined as fitness for the purpose at the lowest cost (ii) Quality is a grade of the product in appearance, performance, life, reliability, taste, odour, maintainability etc (iii) Quality is the degree to which a specified product is preferred over competing products of equivalent grade, based on the comparative test by customers, normally called as customer’s preference (iv) Quality is a measure of the degree of the general excellence of the product (v) Quality may be defined as the degree of conformance to design and specifications Which of the above statements are correct?

A

i, ii

B

i, v, iv

C

i, ii, iii, iv, v

D

ii, iv, iii

The figure below shows a schematic of a water droplet placed on the surfaces of two mineral P and Q.
Mineral Dressing in Metallurgy mcq question image

Mineral Dressing in Metallurgy mcq question image

Given this information, pick the correct statement from the following:

A

Mineral P ascends with air bubbles preferentially over mineral Q

B

Mineral Q ascends with air bubbles preferentially over mineral P

C

Both minerals P and Q ascend with the air bubbles without preference

D

Both minerals P and Q sink to the bottom

A simplified energy band-diagram of an intrinsic semiconductor at thermal equilibrium (300 K) is shown. In the accompanying table, which one of the four cloumns correctly represents the listed parameters? Assume same effective mass for electrons and holes.
Physics of Metals in Metallurgy mcq question image

Physics of Metals in Metallurgy mcq question image

A

Parameter	Energy-difference
Parameter	Column 1	Column 2	Column 3	Column 4
Band-gap	ΔE₂	ΔE₁	ΔE₂	ΔE₁
Electron affinity	$$\frac{{\Delta {E_1}}}{2}$$	ΔE₂ - ΔE₁	$$\frac{{\Delta {E_2}}}{2}$$	ΔE₂ - $$\left( {\frac{{\Delta {E_1}}}{2}} \right)$$
Work function	ΔE₁ + ΔE₂	ΔE₂ - $$\left( {\frac{{\Delta {E_1}}}{2}} \right)$$	ΔE₁ - $$\frac{{\Delta {E_2}}}{2}$$	ΔE₂ + $$\left( {\frac{{\Delta {E_1}}}{2}} \right)$$

Column 1

B

Column 2

C

Column 3

D

Column 4

Thin layer of material B (of total amount m) is plated on the end faces of two long rods of material A. These are then joined together on the plated side (see the figure below) and heated to a high temperature. Assuming the diffusion coefficient of B in A is D, the composition profile CB along the rod axis x after a time t is described by
Introduction to Metallurgy mcq question image

Introduction to Metallurgy mcq question image

A

$${C_B} = \frac{m}{{2\sqrt {\pi Dt} }}\exp \left$$

B

$${C_B} = \frac{m}{{2\sqrt {\pi Dt} }}erf\left$$

C

$${C_B} = \frac{m}{{2\sqrt {\pi Dt} }}\left$$

D

$${C_B} = \frac{m}{{2\sqrt {\pi Dt} }}t$$

The task of choosing between forging, casting, and powder metallurgy for a product in a House of Quality falls under the purview of _____

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