Waste Water Engineering A five day B.O.D. at 15°C of the sewage of a town is 100 kg/day. If the 5 day B.O.D. per head at 15°C for standard sewage is 0.1 kg/day, the population equivalent is 5000 10000 1000 100 5000 10000 1000 100 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known Chemical Oxygen Demand (C.O.D.) None of these Dissolved Oxygen (D.O.) Bio-Chemical Oxygen Demand (B.O.D.) Chemical Oxygen Demand (C.O.D.) None of these Dissolved Oxygen (D.O.) Bio-Chemical Oxygen Demand (B.O.D.) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Lead acetate test in sewer manhole is done to test the presence of Methane gas Hydrogen sulphide Diesel vapours Carbondioxide gas Methane gas Hydrogen sulphide Diesel vapours Carbondioxide gas ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas evolved in sewers is Carbondioxide Hydrogen sulphide Methane All of these Carbondioxide Hydrogen sulphide Methane All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In case of Imhoff tanks, The velocity of flow is restricted to 0.30 m/minute Detention period is 2 hours The shape is rectangular All of these The velocity of flow is restricted to 0.30 m/minute Detention period is 2 hours The shape is rectangular All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is 0.30 m/sec 0.40 m/sec 0.45 m/sec 0.35 m/sec 0.30 m/sec 0.40 m/sec 0.45 m/sec 0.35 m/sec ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS