Environmental Engineering In water treatment, rapid gravity filters are adopted to remove Bacteria and colloidal solids Dissolved solids and dissolved gases Floating solids and dissolved inorganic solids Dissolved organic substances Bacteria and colloidal solids Dissolved solids and dissolved gases Floating solids and dissolved inorganic solids Dissolved organic substances ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank depends on Depth of tank None of these Surface area of tank Both depth and surface area of tank Depth of tank None of these Surface area of tank Both depth and surface area of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 10 ppm 40 ppm 4 ppm 1 ppm 10 ppm 40 ppm 4 ppm 1 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum efficiency of BOD removal is achieved in Aerated lagoons Trickling filters Oxidation pond Oxidation ditch Aerated lagoons Trickling filters Oxidation pond Oxidation ditch ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Ground water is usually free from Both suspended and dissolved impurities Suspended impurities None of these Dissolved impurities Both suspended and dissolved impurities Suspended impurities None of these Dissolved impurities ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Orthotolidine test is used for determination of Dose of coagulant Biochemical oxygen demand Dissolved oxygen Residual chlorine Dose of coagulant Biochemical oxygen demand Dissolved oxygen Residual chlorine ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS