HomeEngineeringIn trickling filter, B.O.D. is reduced to___________________? 522. In trickling filter, B.O.D. is reduced to___________________?By Admin / September 7, 2025 A. 30 to 40% B. 40 to 60% C. 60 to 80% D. 80 to 90% ✅ The correct answer is option C.
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