Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/hour 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/sec 15 to 30 cm/hour 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of Alteration of pressure filters is In between the filtration rate of slow sand filters and rapid sand filters Equal to that of slow sand filters Greater than that of rapid sand filters Less than that of slow sand filters In between the filtration rate of slow sand filters and rapid sand filters Equal to that of slow sand filters Greater than that of rapid sand filters Less than that of slow sand filters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the Dissolved oxygen in water Turbidity in water Residual chlorine in water Hardness in water Dissolved oxygen in water Turbidity in water Residual chlorine in water Hardness in water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Cleaning is done by (i) Scraping and removal in filters slow sand (ii) Back washing in slow sand filters (iii) Scraping and removal in filters rapid sand (iv) Back washing in rapid sand filters The correct answer is (i) and (ii) (i) and (iv) (ii) and (iv) (ii) and (iii) (i) and (ii) (i) and (iv) (ii) and (iv) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Average rate of water consumption per head per day as per Indian Standard is 165 liters 200 liters 100 liters 135 liters 165 liters 200 liters 100 liters 135 liters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The treatment of water with bleaching powder is known as Super chlorination Hypo-chlorination De-chlorination Pre-chlorination Super chlorination Hypo-chlorination De-chlorination Pre-chlorination ANSWER DOWNLOAD EXAMIANS APP
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