HomeEngineeringThe essential constituent of a hardened steel is 16991. The essential constituent of a hardened steel isBy Admin / September 13, 2025 pearlite austenite martensite troostite ✅ The correct answer is option C.
1. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm². Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin
2. Transformer cores are normally made from Leave a Comment / Basic Chemical Engineering MCQs, Chemical Engineering, Engineering / By Admin