Waste Water Engineering The settlement velocity of a solid (diameter 0.5 mm, specific gravity 1.75) in water having temperature 10°C, is 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 500 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The amount of oxygen consumed by the aerobic bacterias which cause the aerobic biological decomposition of sewage, is known Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) Chemical Oxygen Demand (C.O.D.) None of these Bio-Chemical Oxygen Demand (B.O.D.) Dissolved Oxygen (D.O.) Chemical Oxygen Demand (C.O.D.) None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering ¾th or ¼th extra space is left in sewer pipes at maximum discharge for Large scale infiltration of storm water Low estimates of the average and maximum flows Unexpected increase in population All listed here Large scale infiltration of storm water Low estimates of the average and maximum flows Unexpected increase in population All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas evolved in sewers is Hydrogen sulphide All of these Carbondioxide Methane Hydrogen sulphide All of these Carbondioxide Methane ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In Chezy’s formula V = C rs for calculating the velocity of flow in circular sewer of diameter running full, the value of hydraulic mean radius is D/4 D/3 D/1 D/2 D/4 D/3 D/1 D/2 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For a peak discharge of 0.0157 cumec, with a velocity of 0.9 m/sec, the diameter of the sewer main, is 18 cm 12 cm 10 cm 15 cm 18 cm 12 cm 10 cm 15 cm ANSWER DOWNLOAD EXAMIANS APP
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