engineering recuitment BHEL Engineer Trainee Mock Test 2025 Engineering Materials Science Heat Treatment Process
During heat treatment of steel, the hardness of various structures in increasing order is
1
martensite, fine pearlite, coarse pearlite, spherodite
2
fine pearlite, coarse pearlite, spherodite, martensite
3
martensite, coarse pearlite, fine pearlite, spherodite
4
spherodite, coarse pearlite, fine pearlite, martensite