HomeEngineeringVolumetric ratio of N₂ to O₂ in dry atmospheric air is 3141. Volumetric ratio of N₂ to O₂ in dry atmospheric air isBy Admin / September 7, 2025 0.21 3.76 4.76 0.79 ✅ The correct answer is option B.
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