Environmental Engineering The velocity of flow of water in a sedimentation tank is about 5 to 10 cm/sec 15 to 30 cm/minute 15 to 30 cm/sec 15 to 30 cm/hour 5 to 10 cm/sec 15 to 30 cm/minute 15 to 30 cm/sec 15 to 30 cm/hour ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow does not depend on Hydraulic mean depth of sewer Grade of sewer Length of sewer Roughness of sewer Hydraulic mean depth of sewer Grade of sewer Length of sewer Roughness of sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 100 to 150 1400 to 1500 50 to 60 500 to 600 100 to 150 1400 to 1500 50 to 60 500 to 600 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Corrosion in concrete sewers is caused by Dissolved oxygen Septic conditions Nitrogen Chlorine Dissolved oxygen Septic conditions Nitrogen Chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The means of access for inspection and cleaning of sewer line is known as Catch basin Inlet Manhole Drop manhole Catch basin Inlet Manhole Drop manhole ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Activated carbon is used for Removing odours Removing hardness Removing corrosiveness Disinfection Removing odours Removing hardness Removing corrosiveness Disinfection ANSWER DOWNLOAD EXAMIANS APP
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