HomeEngineeringThoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of 3279. Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture ofBy Admin / September 7, 2025 segar cones. muffles for muffle furnaces. insulating bricks. crucibles used for melting of high purity metals. ✅ 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