HomeEngineeringA mineral is termed as ‘ore’, if 5497. A mineral is termed as ‘ore’, ifBy Admin / September 7, 2025 A metal can be economically extracted from it It contains ≥ 40% metal The metal present in it is costly All of the above ✅ The correct answer is option A.
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