HomeEngineeringProtective gas used in the annealing furnace for steel coil comprises of 2388. Protective gas used in the annealing furnace for steel coil comprises ofBy Admin / September 7, 2025 95% N₂ + 5% H₂ 5% H₂ + 9% N₂ 100% CO 100 %H₂ ✅ 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