HomeEngineeringOrthotolidine test is used for determination of________________? 1502. Orthotolidine test is used for determination of________________?By Admin / September 7, 2025 A. dissolved oxygen B. residual chlorine C. biochemical oxygen demand D. dose of coagulant ✅ 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