Waste Water Engineering Pick up the incorrect statement from the following for allowing workers to enter sewers The particular manhole and one manhole on upstream and one manhole on downstream should remain open for 30 minutes Proper tests for the presence of poisonous gases must be carried out Warning signals should be erected The men entering the manhole should be advised to smoke in the sewer The particular manhole and one manhole on upstream and one manhole on downstream should remain open for 30 minutes Proper tests for the presence of poisonous gases must be carried out Warning signals should be erected The men entering the manhole should be advised to smoke in the sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The drop man holes are generally provided in sewers for Hilly town ships Industrial areas Large town ships Cities in plains Hilly town ships Industrial areas Large town ships Cities in plains ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In normal conditions, the period for sludge digestion, is 60 days 10 days 20 days 30 days 60 days 10 days 20 days 30 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 0.10 cumec 0.12 cumec 0.20 cumec 0.15 cumec 0.10 cumec 0.12 cumec 0.20 cumec 0.15 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The underground sewers are more subjected to Tensile force Shearing force Compressive force Bending force Tensile force Shearing force Compressive force Bending force ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for Unexpected large scale infiltration of stream water All of these Under estimates of maximum and average flows Unexpected increase in the population Unexpected large scale infiltration of stream water All of these Under estimates of maximum and average flows Unexpected increase in the population ANSWER DOWNLOAD EXAMIANS APP
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