Environmental Engineering In water treatment, rapid gravity filters are adopted to remove Floating solids and dissolved inorganic solids Dissolved organic substances Dissolved solids and dissolved gases Bacteria and colloidal solids Floating solids and dissolved inorganic solids Dissolved organic substances Dissolved solids and dissolved gases Bacteria and colloidal solids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In lime-soda process Only noncarbonated hardness is removed Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Only carbonate hardness is removed Only noncarbonated hardness is removed Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Only carbonate hardness is removed ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alum as a coagulant is found to be most effective when pH range of water is 2 to 4 4 to 6 8 to 10 6 to 8 2 to 4 4 to 6 8 to 10 6 to 8 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 4 ppm 40 ppm 1 ppm 10 ppm 4 ppm 40 ppm 1 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The gas from sludge digestion tank is mainly composed of Hydrogen sulphide Carbon dioxide Methane Nitrogen Hydrogen sulphide Carbon dioxide Methane Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable layout of a distribution system for irregularly growing town is Ring system Dead end system Radial system Grid iron system Ring system Dead end system Radial system Grid iron system ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS