Waste Water Engineering In a grit chamber of a sewage treatment plant, Depth of 0.9 m to 1.20 m is kept All of these Flow velocity 0.15 m to 0.3 m/sec is kept One minute of detention period is kept Depth of 0.9 m to 1.20 m is kept All of these Flow velocity 0.15 m to 0.3 m/sec is kept One minute of detention period is kept ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Design period of 40 to 50 years is adopted for All listed here Branch sewers Main sewers Trunk sewers All listed here Branch sewers Main sewers Trunk sewers 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 0.15 cumec 0.12 cumec 0.20 cumec 0.10 cumec 0.15 cumec 0.12 cumec 0.20 cumec 0.10 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer manholes are generally provided at All of these The change of direction The change of gradient The junctions of sewers All of these The change of direction The change of gradient The junctions of sewers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In trickling filter, B.O.D. is reduced to 80 to 90% 60 to 80% 30 to 40% 40 to 60% 80 to 90% 60 to 80% 30 to 40% 40 to 60% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage is generally Acidic Alkaline A source of objectionable odour Highly decomposed Acidic Alkaline A source of objectionable odour Highly decomposed ANSWER DOWNLOAD EXAMIANS APP
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