HomeEngineeringThe dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of________________? 1501. The dissolved oxygen level in natural unpolluted waters at normal temperature is found to be of the order of________________?By Admin / September 7, 2025 A. 1 mg/litre B. 10 mg/litre C. 100 mg/litre D. 1000 mg/litre ✅ 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