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Metallurgical Engineering Physical Metallurgy Difficulty: Medium

Match the following. Gruop-I Gruop-II P. Line defect 1. Vacancy Q. Point defect 2. Grain boundary R. Area defect 3. Voids S. Volume defect 4. Dislocations

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Which of the following materials do not respond well to induction hardening? The ability of a material to remain magnetic after the magnetizing force is removed is called The low angle grain boundary occurs when the orientation difference between the adjacent grains is of the order of 'D'i'f'f'i'c'u'l't' 't'o' 'm'o'n'i't'o'r' 'a'n'd' 'v'e'r'y' 'd'a'n'g'e'r'o'u's' 'f'o'r'm' 'o'f' 'c'o'r'r'o's'i'o'n' Brazing is done at