HomeEngineeringPortland cement consists mainly of 5270. Portland cement consists mainly ofBy Admin / September 7, 2025 CaO & SiO₂ SiO₂ & Al2O₃ CaO & Al2O₃ CaO & FE₂O₃ ✅ 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