HomeEngineeringPorosity is induced in insulating refractories by adding 3130. Porosity is induced in insulating refractories by addingBy Admin / September 7, 2025 powdered naphthalene. ammonium chloride/sulphate. calcium phosphate. all (a), (b) and (c). ✅ 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