ExamVeda
Login
Home

Physical Metallurgy MCQ Questions and Answers | Metallurgical Engineering

Enhance your knowledge of Physical Metallurgy with this comprehensive collection of MCQ questions and answers. These MCQ questions and answers in Physical 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-8 section-1

Each section contains 100 MCQs on Physical Metallurgy .
71
It is possible to form martensite
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
72
The following reactions are written such that the forward reaction occurs during cooling. Match the reactions to their names.
Group-I Group-II
P. Y = α + β 1. peritectoid
Q. L+ α = β 2. Eutectoid
R. L1 = L2 + α 3. Peritectic
S. α + β = Y 4. Monotectic
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
73
Match the associated primary change in Group 2 with the corresponding phenomenon in Group 1.
Group 1 Group 2
P. Recovery 1. change in dislocation density
Q. Recrystallisation 2. change in the shape of a phase
R. Malleabilising 3. change in vacancy concentration
S. Texture 4. change in grain orientation
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
74
An alloy of overall composition, XB = 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
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
75
According to Griffith theory, which of the following are true for the fracture stress in a brittle material?
P. Increases with increasing surface energy
Q. Decreases with increasing elastic modulus
R. Decreases with increasing length of pre-existing crack
S. Decreases with increasing number of pre-existing cracks of same size
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
76
Match the following strengthening methods (Group I) in metallic alloys with typical mechanisms responsible (Group II) for them.
Group I Group II
P. Grain size strengthening 1. Orowan looping
Q. Work hardening 2. Suzuki interaction
R. Dispersion strengthening 3. Lomer-Cottrell-barrier
S. Solid solution hardening 4. Dislocation pile up at grain boundaries
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
77
Which one of the following can avoid weld decay of austenitic stainless steels?
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
78
Lath martensitic microstructure we can see in
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
79
Regarding recrystalisation, which one of the following statements is not correct?
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
80
In age hardenable alloys maximum ductility is obtained
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board