HomeEngineeringTo maintain aerobic biological activity, the moisture content of the compost mass should be about_________________? 581. To maintain aerobic biological activity, the moisture content of the compost mass should be about_________________?By Admin / September 7, 2025 A. 45 % B. 50 % C. 55 % D. 60 % ✅ 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