HomeEngineeringPercentage of argon (by volume) in dry atmospheric air is about 489. Percentage of argon (by volume) in dry atmospheric air is aboutBy Admin / September 6, 2025 A. 0.09 B. 0.3 C. 0.57 D. 0.94 ✅ 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