Waste Water Engineering If the diameter of a sewer is 150 mm, the gradient required for generating self cleansing velocity, is None of these 1 in 120 1 in 100 1 in 60 None of these 1 in 120 1 in 100 1 in 60 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following gases is most significant as air pollutant? Nitrogen Sulphur-dioxide Oxygen Carbondioxide Nitrogen Sulphur-dioxide Oxygen Carbondioxide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers the velocity of flow should not be More than 20 m/sec Less than the self-cleansing velocity More than the self-cleansing velocity Less than 10 m/sec More than 20 m/sec Less than the self-cleansing velocity More than the self-cleansing velocity Less than 10 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design purposes, the normal rate of infiltration of ground water into the sewer, is 500 litres/km/cm 2000 litres/km/cm 1000 litres/km/cm 1500 litres/km/cm 500 litres/km/cm 2000 litres/km/cm 1000 litres/km/cm 1500 litres/km/cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is 500 cm/sec 313.5 cm/sec 213.5 cm/sec 413.5 cm/sec 500 cm/sec 313.5 cm/sec 213.5 cm/sec 413.5 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention period for plain sedimentation water tanks, is usually 24 to 36 hours 16 to 24 hours 4 to 8 hours 8 to 16 hours 24 to 36 hours 16 to 24 hours 4 to 8 hours 8 to 16 hours ANSWER DOWNLOAD EXAMIANS APP
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