Waste Water Engineering The most widely used pump for lifting sewage is Reciprocating pump Pneumatic ejector Centrifugal pump Air pressure pump Reciprocating pump Pneumatic ejector Centrifugal pump Air pressure pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is 100 mg/l 50 mg/l 150 mg/l 250 mg/l 100 mg/l 50 mg/l 150 mg/l 250 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Rate of flow of sewage is generally assumed More than the rate of water supply Less than the rate of water supply At 150 litres per capita Equal to the rate of water supply More than the rate of water supply Less than the rate of water supply At 150 litres per capita Equal to the rate of water supply ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The arrangement made for passing the sewer line below an obstruction below the hydraulic gradient lines called Depressed sewer Inverted syphon all of these Sag pipe Depressed sewer Inverted syphon all of these Sag pipe ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage may become stale in Three to four hours One hour Two to three hours Six hours Three to four hours One hour Two to three hours Six hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 2.5 to 3.0 m/sec 3.5 to 4.5 m/sec 3.0 to 4.0 m/sec 4.5 to 5.5 m/sec 2.5 to 3.0 m/sec 3.5 to 4.5 m/sec 3.0 to 4.0 m/sec 4.5 to 5.5 m/sec ANSWER DOWNLOAD EXAMIANS APP
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