This set of Engineering Materials Science "Multiple Choice Questions & Answers" are based on "PHASE DIAGRAM"
PHASE DIAGRAM
Multiple Choice Questions (MCQ)
Hello reader, here you can find some MCQ with answers. But before reading this I will suggest you take a practice test on these questions given below. so you can understand your strength on this topic.
Click here to go Practice Test section on this topic namely Phase Diagram.
But if you want to read this topic first and then practice it then read it carefully. The Multiple Choice Questions (MCQ) based on the Phase Diagram are given below:
PART - IV
1) The reaction that yields two solid phases on cooling a single solid phase is called
Correct Answer is "B"
Eutectoid reaction yields two solid phases on cooling a single solid phase.
2) The reaction that, on heating one solid phase, yields another solid phase and one liquid phase is called
Correct Answer is "B"
The reaction that, on heating one solid phase, yields another solid phase, and one liquid phase is called a peritectic reaction.
3) Gibbs phase rule for general system:
Correct Answer is "D"
Gibbs phase rule for the general system is P+F = C+2
4) The degree of freedom at a triple point in the unary diagram for water is
Correct Answer is "A"
The degree of freedom at the triple point in the unary diagram for water is 0.
5) Pick the odd one in the following:
Correct Answer is "D"
The compound has a fixed ratio of both components but the solid solution and isomorphous alloys have a variable ratio of components.
6) The boundary line between (liquid+solid) and (solid) regions is called
Correct Answer is "B"
The boundary line between (liquid+solid) and (solid) regions is called Solidus
7) Which of the following is not a name for phases present in a system of material in various conditions?
Correct Answer is "A"
Phases present in a system of material in various conditions is called phase diagram or equilibrium diagram or constitutional diagram.
8) Relative amounts of phases in a region can be calculated using
Correct Answer is "B"
Relative amounts of phases in a region can be calculated using the Lever rule.
9) An invariant reaction that produces a mixture of a liquid and a solid on cooling a second liquid is known as
Correct Answer is "A"
An invariant reaction that produces a mixture of a liquid and a solid on cooling a second liquid is known as Monotectic.
10) A liquid phase produces two solid phases during _________ reaction up on cooling.
Correct Answer is "A"
A liquid phase produces two solid phases during eutectic reaction upon cooling
Do you read all the questions and answers given above carefully? let's make a practice on all the questions given above.
Go to: Practice Test on Phase Diagram (MCQ) PART - IV
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