Waste Water Engineering In case of Imhoff tanks, Detention period is 2 hours The velocity of flow is restricted to 0.30 m/minute All of these The shape is rectangular Detention period is 2 hours The velocity of flow is restricted to 0.30 m/minute All of these The shape is rectangular ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Hydrogen sulphide Carbon dioxide Methane Oxygen Hydrogen sulphide Carbon dioxide Methane Oxygen 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 None of these Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) Chemical Oxygen Demand (C.O.D.) None of these Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) Chemical Oxygen Demand (C.O.D.) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is 1 in 100 upward 1 in 500 upward 1 in 100 downward 1 in 503 upward 1 in 100 upward 1 in 500 upward 1 in 100 downward 1 in 503 upward ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In very first stage of decomposition of the organic matter in sewage Ammonia is formed Nitrates are formed Nitrites are formed Carbondioxide is formed Ammonia is formed Nitrates are formed Nitrites are formed Carbondioxide is formed ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed 3 ppm 4 ppm 10 ppm 5 ppm 3 ppm 4 ppm 10 ppm 5 ppm ANSWER DOWNLOAD EXAMIANS APP
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