HomeEngineeringThe main ingredients of Portland cement are________________? 13. The main ingredients of Portland cement are________________?By Admin / September 7, 2025 A. lime and silica B. lime and alumina C. silica and alumina D. lime and iron ✅ 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