Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 3 to 5 mm 2 to 3 mm 8 to 10 mm 5 to 8 mm 3 to 5 mm 2 to 3 mm 8 to 10 mm 5 to 8 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The factor responsible for purification of sewage in river is Dissolved oxygen in water Hydrology All listed here Temperature Dissolved oxygen in water Hydrology All listed here Temperature ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The design period in years for pumping plants, is 1 5 to 10 3 to 5 2 to 3 1 5 to 10 3 to 5 2 to 3 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Traps Are used to trap the rats entering sewers Create symphonic action to increase the quick disposal of sewerage Dissolve the foul gases Are water seals which prevent the entry of foul gases Are used to trap the rats entering sewers Create symphonic action to increase the quick disposal of sewerage Dissolve the foul gases Are water seals which prevent the entry of foul gases ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 5 days-biochemical oxygen demand (BOD5) is taken at a temperature of 15°C 20°C 0°C 25°C 15°C 20°C 0°C 25°C 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
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