Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 100 to 150 500 to 600 1400 to 1500 50 to 60 100 to 150 500 to 600 1400 to 1500 50 to 60 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 100 ppm 200 ppm 300 ppm 400 ppm 100 ppm 200 ppm 300 ppm 400 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 50 to 150 0 to 50 350 to 500 150 to 350 50 to 150 0 to 50 350 to 500 150 to 350 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Activated carbon is used for Disinfection Removing corrosiveness Removing hardness Removing odours Disinfection Removing corrosiveness Removing hardness Removing odours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to shallow wells, deep wells have Less depth More discharge Less discharge More depth Less depth More discharge Less discharge More depth ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effect of increasing diameter of sewer on the self cleansing velocity is Fluctuating To decrease it To increase it Nil Fluctuating To decrease it To increase it Nil ANSWER DOWNLOAD EXAMIANS APP
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