In which of the following methods, surface of a steel component become – McqOptions

MCQOPTIONS

1.	In which of the following methods, surface of a steel component becomes hard due to phase transformation austenite to martensite?
A.	Carbonitriding
B.	Flame hardening
C.	Both a. and b.
D.	None of the above
Answer» C. Both a. and b.

Discussion

No Comment Found

Related MCQs

Which of the following statements is/are false for heat treatment processes?
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
Which of the following statements is/are true for erosion corrosion?
Which transformation starts after the nucleation of ferrite phase?
Which type of chemical reaction is observed at cathode, in electrochemical corrosion?
Why is gray cast iron annealed?
Which of the following processes permit the transformation of austenite to martensite, throughout the cross-section of a component without cracking or distortion?
Which of the following photographic papers is used in sulphur printing technique?
Which of the following phases has a complex orthorhomic crystal structure?
Which of the following parameters is/are false for steel?