Waste Water Engineering Pick up the incorrect statement from the following for allowing workers to enter sewers 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 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 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The density of population over 40 hectares is 250/hectare. If water supply demand per day is 200 litres and sewage discharge is 80% of water supply, the sewage flow in sewers of separate system, is 0.05552 cumec 0.05556 cumec 0.05554 cumec 0.0556 cumec 0.05552 cumec 0.05556 cumec 0.05554 cumec 0.0556 cumec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is 200 ppm 250 ppm None of these 225 ppm 200 ppm 250 ppm None of these 225 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The bottom of the sewage inlet chamber of septic tanks, is provided an outward slope 1 in 10 1 in 15 1 in 5 1 in 20 1 in 10 1 in 15 1 in 5 1 in 20 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering It is customary to design a sewer for D.W.F. on the basis of Twice the average demand Average demand Thrice the average demand Four times the average demand Twice the average demand Average demand Thrice the average demand Four times the average demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design purposes, the normal rate of infiltration of ground water into the sewer, is 2000 litres/km/cm 1500 litres/km/cm 1000 litres/km/cm 500 litres/km/cm 2000 litres/km/cm 1500 litres/km/cm 1000 litres/km/cm 500 litres/km/cm ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS