Waste Water Engineering For efficient working of a sewer, it must be ensured that Both (A) and (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow Neither (A) nor (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow Both (A) and (B) A maximum velocity of 0.90 m/sec, is maintained at its maximum flow Neither (A) nor (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The use of coarse screens for the disposal of sewage, may be dispensed with by Comminutor Both A and B Shredder Neither A nor B Comminutor Both A and B Shredder Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The flow velocity in detritus tanks is 1.25 m/sec None of these 0.05 m/sec 0.09 m/sec 1.25 m/sec None of these 0.05 m/sec 0.09 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The factor responsible for purification of sewage in river is All listed here Hydrology Temperature Dissolved oxygen in water All listed here Hydrology Temperature Dissolved oxygen in water ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering ‘Cowl’ is provided at Upper end of the manhole Lower end of ventilating column Upper end of ventilating column First step in manhole Upper end of the manhole Lower end of ventilating column Upper end of ventilating column First step in manhole 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 0.15 cumec 0.12 cumec 0.20 cumec 0.10 cumec 0.15 cumec 0.12 cumec 0.20 cumec ANSWER DOWNLOAD EXAMIANS APP
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