HomeEngineeringFor existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. 5820. For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm.By Admin / September 7, 2025 10000 5 500 1000 ✅ 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