Environmental Engineering In facultative stabilization pond, the sewage is treated by Algae only Sedimentation Aerobic bacteria only Dual action of aerobic bacteria and anaerobic bacteria Algae only Sedimentation Aerobic bacteria only Dual action of aerobic bacteria and anaerobic bacteria ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of oxidation pond is that BOD removal is very low None of these Maintenance and operation cost are high Large area is required for construction BOD removal is very low None of these Maintenance and operation cost are high Large area is required for construction ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 0 to 50 50 to 150 150 to 350 350 to 500 0 to 50 50 to 150 150 to 350 350 to 500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In lime-soda process Only noncarbonated hardness is removed Only carbonate 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 noncarbonated hardness is removed Only carbonate 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 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable layout of a distribution system for irregularly growing town is Radial system Dead end system Grid iron system Ring system Radial system Dead end system Grid iron system Ring system 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 200 ppm 300 ppm 400 ppm 100 ppm 200 ppm 300 ppm 400 ppm 100 ppm ANSWER DOWNLOAD EXAMIANS APP
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