engineering recuitment NCL Assistant Foreman (Trainee) Mock Test 2024 Engineering Materials Science Heat Treatment Process
Heat treatment of steel ______.
1
can be used to change the carbon percentage.
2
involves heating steel to a temperature above the recrystallization point and then cooling.
3
is effective when the carbon percentage is lower than 0.8%
4
cannot be used to relieve local stresses and strains.