Question
a.
30-40°C above
b.
30-40°C below
c.
50-60°C above
d.
50-60°C below
Posted under Engineering Materials
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. For normalising, the steel is heated ___________ its upper critical temperature.
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. Which of the following is not applicable for normalising process?
View solution
Q. The structure obtained by normalising depends on __________
View solution
Q. Microstructure containing ferrite is termed as _________
View solution
Q. Which among the following media of quenching the slowest?
View solution
Q. Which of the following is not a preferred vegetable oil for quenching medium?
View solution
Q. Mineral oils are used in the hardening process of ____________
View solution
Q. Which quenching medium is used for quenching of carbon and low alloy steels?
View solution
Q. Which stage of quenching is the slowest?
View solution
Q. Vapour-jacket cooling stage of quenching process occurs _________
View solution
Q. Non-equilibrium phases are shown for their time and transformation using _________
View solution
Q. The CCT or the TTT diagrams are used for _________
View solution
Q. What does CCT diagram stand for?
View solution
Q. __________ is used to predict quenching reactions in steels.
View solution
Q. Which of the following is not an alternative name for the TTT diagram?
View solution
Q. The first step in constructing a TTT diagram involves _________ the sample.
View solution
Q. Austenising of samples for TTT diagram is done __________ temperature.
View solution
Q. Examination of transformation time after quenching is done ___________
View solution
Q. Isothermal transformations of eutectoid steel between 723°C and 550°C produces __________ microstructure.
View solution
Q. Rapid quenching of eutectoid steel ___________ transforms the austenite into martensite.
View solution
Q. Hot-quenching of eutectoid steels in austenitic condition results in formation of ___________
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Engineering Materials? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!