MCQs: The cooling curve formed when a material is solidified due to latent heat of fusion is called as ______.
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MCQs: Austenite phase in Iron-Carbon equilibrium diagram _______
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MCQs: What is the crystal structure of δ-ferrite?
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MCQs: Which of the following phases has a complex orthorhomic crystal structure?
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MCQs: In Iron-Carbon equilibrium diagram, at which temperature cementite changes from ferromagnetic to paramagnetic character?
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MCQs: Which of the following statements is/are true about Iron in Iron-Carbon equilibrium diagram ? 1. It is soft and ductile 2. It is allotropic in nature 3. It is magnetic above curie temperature 4. Below the temperature of 1539 °C, iron is in liquid state
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MCQs: Which transformation starts after the nucleation of ferrite phase?
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MCQs: The process of decomposing martensitic structure, by heating martensitic steel below its critical temperature is called as _______
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MCQs: Which of the following processes permit the transformation of austenite to martensite, throughout the cross-section of a component without cracking or distortion?
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MCQs: Which of the following methods measure hardenability of a metal?
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MCQs: In which of the following methods, surface of a steel component becomes hard due to phase transformation austenite to martensite?
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MCQs: Chemical action during corrosion converts metal into metallic component as ________
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MCQs: What is meant by corrosion?
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MCQs: Which type of chemical reaction is observed at cathode, in electrochemical corrosion?
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MCQs: Which of the following corrosions are caused due to velocity of fluid flow in pipes?
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MCQs: Corrosion fatigue is a combined effect of _____
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MCQs: The gray cast iron has ____
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MCQs: In mottled cast iron, slow cooling rate is used to obtain ______
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MCQs: What is the effect of silicon on the structure of cast iron? 1. Blowholes are present in the castings 2. Increases fluidity 3. Influences the solidification of liquid alloys 4. Reacts with iron to form iron sulphide
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MCQs: Nodules of graphite are observed in the microstructure of _______
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