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Test: Equilibrium Diagrams & Phase Changes - 2 - Mechanical Engineering MCQ


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10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Equilibrium Diagrams & Phase Changes - 2

Test: Equilibrium Diagrams & Phase Changes - 2 for Mechanical Engineering 2024 is part of Topicwise Question Bank for Mechanical Engineering preparation. The Test: Equilibrium Diagrams & Phase Changes - 2 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Equilibrium Diagrams & Phase Changes - 2 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Equilibrium Diagrams & Phase Changes - 2 below.
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Test: Equilibrium Diagrams & Phase Changes - 2 - Question 1

Ms for Fe-C system is around

Detailed Solution for Test: Equilibrium Diagrams & Phase Changes - 2 - Question 1

Ms temperature: The temperature at which a martensitic transformation starts during cooling after austenitization. This temperature is around 2100C.

Test: Equilibrium Diagrams & Phase Changes - 2 - Question 2

Following is WRONG about a phase diagram:

Detailed Solution for Test: Equilibrium Diagrams & Phase Changes - 2 - Question 2

Time dependence phase changes is studied by kinetics of the phase transformations.

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Test: Equilibrium Diagrams & Phase Changes - 2 - Question 3

Which of the following is not a Hume-Ruthery condition?

Test: Equilibrium Diagrams & Phase Changes - 2 - Question 4

Horizontal arrest in a cooling curve represents:

Test: Equilibrium Diagrams & Phase Changes - 2 - Question 5

Which of the following is not a typical site for nucleation during solid stage transformation?

Test: Equilibrium Diagrams & Phase Changes - 2 - Question 6

Overall transformation rate changes with temperature as follows:

Test: Equilibrium Diagrams & Phase Changes - 2 - Question 7

Weight % of carbon in mild steels is

Test: Equilibrium Diagrams & Phase Changes - 2 - Question 8

Nose of a C-curve represents

Test: Equilibrium Diagrams & Phase Changes - 2 - Question 9

Diamagnetic materials

Detailed Solution for Test: Equilibrium Diagrams & Phase Changes - 2 - Question 9

Gibbs phase rule is given as
P + F = C + 2
Where P = Number of phase
F = Number of degree of freedom
C = Number of components

Test: Equilibrium Diagrams & Phase Changes - 2 - Question 10

Hyper eutectoid steels have carbon content

Detailed Solution for Test: Equilibrium Diagrams & Phase Changes - 2 - Question 10

One group is named hypoeutectoid steel (carbon content less than 0.8%) and the other is hypereutectoid steel (carbon content more than 0.8%). In hypoeutectoid steel, the equilibrium microstructure at room temperature consists of ferrite and pearlite; this ferrite is called proeutectoid ferrite

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