Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known None of these Dissolved Oxygen (D.O.) Bio-Chemical Oxygen Demand (B.O.D.) Chemical Oxygen Demand (C.O.D.) None of these Dissolved Oxygen (D.O.) Bio-Chemical Oxygen Demand (B.O.D.) Chemical Oxygen Demand (C.O.D.) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which of the following pumps in used to pump sewage solids with liquid sewage without clogging the pump is? Pneumatic ejector None of these Centrifugal pump Reciprocating pump Pneumatic ejector None of these Centrifugal pump Reciprocating pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Rate of flow of sewage is generally assumed Less than the rate of water supply Equal to the rate of water supply At 150 litres per capita More than the rate of water supply Less than the rate of water supply Equal to the rate of water supply At 150 litres per capita More than the rate of water supply ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For efficient working of a sewer, it must be ensured that Both (A) and (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow A maximum velocity of 0.90 m/sec, is maintained at its maximum flow Neither (A) nor (B) Both (A) and (B) Minimum velocity of 0.45 m/sec, is maintained at its minimum flow A maximum velocity of 0.90 m/sec, is maintained at its maximum flow Neither (A) nor (B) ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pressure exerted by The sewage when running full from inside, is called internal pressure All listed here The internal pressure if any, causes tensile stress in the pipe material Pressure sewers are designed to be safe in tension The sewage when running full from inside, is called internal pressure All listed here The internal pressure if any, causes tensile stress in the pipe material Pressure sewers are designed to be safe in tension ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The width of a settling tank with 2 hour detention period for treating sewage 378 cu m per hour, is 6.5 m 5.5 m 7 m 5 m 6.5 m 5.5 m 7 m 5 m ANSWER DOWNLOAD EXAMIANS APP
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