Waste Water Engineering When drainage to sewage ratio is 20, the peak dry weather flow is None of these 20% of the design discharge Slightly less than 5% of the design discharge Slightly more than 5% of the design discharge None of these 20% of the design discharge Slightly less than 5% of the design discharge Slightly more than 5% of the design discharge ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 3.0 ml of raw sewage is diluted to 300 ml. The D.O. concentration of the diluted sample at the beginning of the test was 8 mg/l. After 5 day-incubation at 20°C, the D.O. concentration was 5 mg/l. The BOD of raw sewerage is 400 mg/l 100 mg/l 200 mg/l 300 mg/l 400 mg/l 100 mg/l 200 mg/l 300 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering 1000 kg of sewage contains Both A and C of above 0.225 kg in solution 0.112 kg in solution 0.112 kg in suspension Both A and C of above 0.225 kg in solution 0.112 kg in solution 0.112 kg in suspension ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A safety lamp when inserted in the upper portion of a manhole causes flames. It indicates the presence of Hydrogen sulphide gas Methane gas Petrol vapours Carbondioxide gas Hydrogen sulphide gas Methane gas Petrol vapours Carbondioxide gas ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the discharge of a sewer running half is 628 1.p.s., i = 0.001, and n = 0.010, the diameter of the sewer, is 1.49 m 1.69 m 1.59 m 1.39 m 1.49 m 1.69 m 1.59 m 1.39 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The quantity of liquid waste which flows in sewers during the period of rainfall, is known Storm sewage Industrial waste None of these Sanitary sewage Storm sewage Industrial waste None of these Sanitary sewage ANSWER DOWNLOAD EXAMIANS APP
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