Waste Water Engineering hydraulically equivalent, the relationship which holds good, is D3/8 = 4 b3/8 D3/2 = 4 b3/2 D8/3 = 4 b8/3 D2/3 = 4 b2/3 D3/8 = 4 b3/8 D3/2 = 4 b3/2 D8/3 = 4 b8/3 D2/3 = 4 b2/3 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit chambers of sewage treatment plants, are generally cleaned after 2 days 12 days 7 days 14 days 2 days 12 days 7 days 14 days 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 0.15 cumec 0.10 cumec 0.20 cumec 0.12 cumec 0.15 cumec 0.10 cumec 0.20 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For a grit chamber, if the recommended velocity of flow is 0.2 m/sec and detention period is 2 minutes, the length of the tank, is 30 m 16 m 24 m 20 m 30 m 16 m 24 m 20 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Before discharging the foul sewage into rivers, it is generally treated by Sedimentation All listed here Screening Oxidation Sedimentation All listed here Screening Oxidation ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The dimensions of a rectangular settling tank are: length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is 204 cu.m 216 cu.m 208 cu.m 212 cu.m 204 cu.m 216 cu.m 208 cu.m 212 cu.m ANSWER DOWNLOAD EXAMIANS APP