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 Methane Oxygen Carbon dioxide Hydrogen sulphide Methane Oxygen Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In very first stage of decomposition of the organic matter in sewage Ammonia is formed Carbondioxide is formed Nitrites are formed Nitrates are formed Ammonia is formed Carbondioxide is formed Nitrites are formed Nitrates are formed ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For large sewers, maximum distance between manholes may be 100 m 50 m 300 m 200 m 100 m 50 m 300 m 200 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by Crimp and Bruges William-Hazen Kutter Bazin Crimp and Bruges William-Hazen Kutter Bazin ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the length of overland flow from the critical point to the mouth of drain is 13.58 km and difference in level between the critical point and drain mouth is 10 m, the inlet time is 2 hours 8 hours 4 hours 6 hours 2 hours 8 hours 4 hours 6 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The layers of vegetable wastes and night soil alternatively piled above the ground to form a mound, is called A heap Windrow None of these Plateau A heap Windrow None of these Plateau ANSWER DOWNLOAD EXAMIANS APP
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