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 50 mg/l 100 mg/l 150 mg/l 250 mg/l 50 mg/l 100 mg/l 150 mg/l 250 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas evolved in sewers is All of these Methane Carbondioxide Hydrogen sulphide All of these Methane Carbondioxide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The width of a rectangular sewer is twice its depth while discharging 1.5 m/sec. The width of the sewer is 1.76 m 0.68 m 0.88 m 1.36 m 1.76 m 0.68 m 0.88 m 1.36 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewage, the solids in mg per litre is 100 to 500 500 to 1000 1000 to 1500 1500 to 2000 100 to 500 500 to 1000 1000 to 1500 1500 to 2000 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is 1 in 500 upward 1 in 503 upward 1 in 100 downward 1 in 100 upward 1 in 500 upward 1 in 503 upward 1 in 100 downward 1 in 100 upward ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Design period of 40 to 50 years is adopted for Main sewers Trunk sewers All listed here Branch sewers Main sewers Trunk sewers All listed here Branch sewers ANSWER DOWNLOAD EXAMIANS APP
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