Environmental Engineering The design discharge for the separate sewer system shall be taken as 3 × DWF Equal to dry weather flow (DWF) 2 × DWF 6 × DWF 3 × DWF Equal to dry weather flow (DWF) 2 × DWF 6 × DWF ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank depends on Surface area of tank Both depth and surface area of tank None of these Depth of tank Surface area of tank Both depth and surface area of tank None of these Depth of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are normally designed for 5 - 10 years 28 - 30 years 15 - 20 years 15 - 28 years 5 - 10 years 28 - 30 years 15 - 20 years 15 - 28 years ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The effect of increasing diameter of sewer on the self cleansing velocity is Nil To increase it Fluctuating To decrease it Nil To increase it Fluctuating To decrease it ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The overflow rate for plain sedimentation tanks is about 1500 to 2000 liters/hour/m² 500 to 750 liters/hour/ m² 1000 to 1250 liters/hour/ m² 1250 to 1500 liters/hour/m² 1500 to 2000 liters/hour/m² 500 to 750 liters/hour/ m² 1000 to 1250 liters/hour/ m² 1250 to 1500 liters/hour/m² ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Corrosion in concrete sewers is caused by Nitrogen Septic conditions Chlorine Dissolved oxygen Nitrogen Septic conditions Chlorine Dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
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