Waste Water Engineering The sewerage system originates from Lateral sewers Branch sewers House sewers Main sewers Lateral sewers Branch sewers House sewers Main sewers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is 1 in 100 downward 1 in 500 upward 1 in 100 upward 1 in 503 upward 1 in 100 downward 1 in 500 upward 1 in 100 upward 1 in 503 upward ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Oxygen Carbon dioxide Hydrogen sulphide Methane Oxygen Carbon dioxide Hydrogen sulphide Methane 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
Waste Water Engineering Bottom openings 15 cm × 15 cm in the standing baffle wall are provided 30 cm c/c 22.5 cm c/c 15 cm c/c 50 cm c/c 30 cm c/c 22.5 cm c/c 15 cm c/c 50 cm c/c 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 0.20 cumec 0.10 cumec 0.12 cumec 0.15 cumec 0.20 cumec 0.10 cumec ANSWER DOWNLOAD EXAMIANS APP
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