Environmental Engineering Orthotolidine test is used for determination of Residual chlorine Dose of coagulant Biochemical oxygen demand Dissolved oxygen Residual chlorine Dose of coagulant Biochemical oxygen demand Dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to Total hardness total alkalinity Total alkalinity Total hardness Non carbonate hardness Total hardness total alkalinity Total alkalinity Total hardness Non carbonate hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The hydraulic mean depth (HMD) for an egg-shaped sewer flowing two-third full is Greater than HMD when flowing full Less than HMD when flowing full Equal to HMD when flowing full None of these Greater than HMD when flowing full Less than HMD when flowing full Equal to HMD when flowing full None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable method for disinfection of swimming pool water is By using potassium permanganate Lime treatment Chlorination Ultra violet rays treatment By using potassium permanganate Lime treatment Chlorination Ultra violet rays treatment ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be 400 ppm 100 ppm 200 ppm 300 ppm 400 ppm 100 ppm 200 ppm 300 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In facultative stabilization pond, the sewage is treated by Dual action of aerobic bacteria and anaerobic bacteria Sedimentation Algae only Aerobic bacteria only Dual action of aerobic bacteria and anaerobic bacteria Sedimentation Algae only Aerobic bacteria only ANSWER DOWNLOAD EXAMIANS APP
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