Waste Water Engineering The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is 2 hours 1 hour 1 hour and 30 minutes 30 minutes 2 hours 1 hour 1 hour and 30 minutes 30 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The drainage area of a town is 12 hectares. Its 40% area is hard pavement ( K = 0.85), the 40% area is unpaved streets (K = 0.20) and the remaining is wooded areas (K = 0.15). Assuming the time of concentration for the areas as 30 minutes and using the formula Ps = 900/(t + 60) the maximum run off is 0.12 cumec 0.20 cumec 0.10 cumec 0.15 cumec 0.12 cumec 0.20 cumec 0.10 cumec 0.15 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most dangerous pollutant in vehicular emissions is O₂ SO₂ CO₂ CO₂ O₂ SO₂ CO₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering No treatment of the sewage is given if dilution factor is Less than 150 Between 150 to 200 More than 500 Between 200 to 300 Less than 150 Between 150 to 200 More than 500 Between 200 to 300 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The disintegrating pump in which solid matter is broken up before passing out, is None of these Pneumatic ejector Centrifugal pump Reciprocating pump None of these Pneumatic ejector Centrifugal pump Reciprocating pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient, Is only provided Is not enough Is trebled Is doubled Is only provided Is not enough Is trebled Is doubled ANSWER DOWNLOAD EXAMIANS APP
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