HomeEngineeringThe minimum dissolved oxygen which should always be present in water in order to save the aquatic life is______________? 1471. The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is______________?By Admin / September 7, 2025 A. 1 ppm B. 4 ppm C. 10 ppm D. 40 ppm ✅ 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