HomeEngineeringWhich metal is protected by the layer of its own oxide? 2022. Which metal is protected by the layer of its own oxide?By Admin / September 7, 2025 Iron Silver Calcium Aluminium ✅ The correct answer is option D.
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