Waste Water Engineering The settling velocity of the particles larger than 0.06 mm in a settling tank of depth 2.4 is 0.33 m per sec. The detention period recommended for the tank, is 1 hour 2 hours 30 minutes 1 hour and 30 minutes 1 hour 2 hours 30 minutes 1 hour and 30 minutes ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The screens are fixed At an angle 30° to 60° to the direction of flow Parallel to the direction of flow None of these Perpendicular to the direction of flow At an angle 30° to 60° to the direction of flow Parallel to the direction of flow None of these Perpendicular to the direction of flow 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 1000 litres/km/cm 2000 litres/km/cm 1500 litres/km/cm 500 litres/km/cm 1000 litres/km/cm 2000 litres/km/cm 1500 litres/km/cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a 2% solution of sewage sample is incubated for 5 days at 20°C and the dissolved oxygen depletion was found to be 8 mg/l. The BOD of the sewage is 200 mg/l 400 mg/l 300 mg/l 100 mg/l 200 mg/l 400 mg/l 300 mg/l 100 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Dry weather flow is: Average monthly rate of flow Average daily rate of flow Average annual rate of flow Water supply allowance per capita Average monthly rate of flow Average daily rate of flow Average annual rate of flow Water supply allowance per capita ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of fresh sewage is usually Equal to zero Less than 7 Equal to 7 More than 7 Equal to zero Less than 7 Equal to 7 More than 7 ANSWER DOWNLOAD EXAMIANS APP
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