Environmental Engineering In water treatment, rapid gravity filters are adopted to remove Dissolved solids and dissolved gases Dissolved organic substances Floating solids and dissolved inorganic solids Bacteria and colloidal solids Dissolved solids and dissolved gases Dissolved organic substances Floating solids and dissolved inorganic solids Bacteria and colloidal solids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Facultative bacteria are able to work in Absence of oxygen only Presence of water Presence as well as in absence of oxygen Presence of oxygen only Absence of oxygen only Presence of water Presence as well as in absence of oxygen Presence of oxygen only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of filtered water, which is used for backwashing in rapid sand filters, is about 0.4 to 1.0 2 to 4 0.2 to 0.4 5 to 7 0.4 to 1.0 2 to 4 0.2 to 0.4 5 to 7 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Composting and lagooning are the methods of Sedimentation Sludge disposal Filtration Sludge digestion Sedimentation Sludge disposal Filtration Sludge digestion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Disinfection of water results in Removal of turbidity Killing of disease bacteria Removal of hardness Complete sterilisation Removal of turbidity Killing of disease bacteria Removal of hardness Complete sterilisation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Orthotolidine test is used for determination of Dissolved oxygen Residual chlorine Biochemical oxygen demand Dose of coagulant Dissolved oxygen Residual chlorine Biochemical oxygen demand Dose of coagulant ANSWER DOWNLOAD EXAMIANS APP
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