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 30 minutes 1 hour and 30 minutes 2 hours 1 hour 30 minutes 1 hour and 30 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For evaporation and measurement of settable solids, the apparatus used, is An Imhoff cone A jar A breaker A test tube An Imhoff cone A jar A breaker A test tube ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes need be checked for None of these Minimum flow Maximum flow Both A and B None of these Minimum flow Maximum flow Both A and B 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 0.10 cumec 0.20 cumec 0.15 cumec 0.12 cumec 0.10 cumec 0.20 cumec 0.15 cumec 0.12 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For treating the sewage of a large city, you will recommend None of these A plant consisting of Imhoff tanks with low rate trickling filters Sedimentation tanks with high rate trickling filters A sedimentation tank and an activated sludge treatment plant None of these A plant consisting of Imhoff tanks with low rate trickling filters Sedimentation tanks with high rate trickling filters A sedimentation tank and an activated sludge treatment plant ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The presence of free ammonia in sewage, is detected by Adding sulphuric acid Boiling Phenol-di-sulphuric acid Adding potassium permanganate Adding sulphuric acid Boiling Phenol-di-sulphuric acid Adding potassium permanganate ANSWER DOWNLOAD EXAMIANS APP
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