Which of the following methods of heat treatment is best suitable for – McqOptions

MCQOPTIONS

1.	Which of the following methods of heat treatment is best suitable for treating the output of cold rolling?
A.	Quenching
B.	Case hardening
C.	Annealing
D.	Cyanide hardening
Answer» D. Cyanide hardening

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Which of the following methods of heat treatment is best suitable for treating the output of cold rolling?
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The dislocation density of the material is defined as the ratio of total dislocation length per unit volume of the material.
The dislocations in the material only act as strong obstacles to the movement of other dislocations.
The dislocation density of the material increases during the process of cold rolling or work hardening.