Waste Water Engineering For trunk and out-fall, the type of sewers generally used, is Standard egg shaped Parabolic shaped Horse shoe shaped Circular shaped Standard egg shaped Parabolic shaped Horse shoe shaped Circular shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewage discharge in a detritus tank of a treatment plant is 576 litres/sec with flow velocity of 0.2 m/sec. If the ratio of width to depth is 2, the depth is 120 cm 100 cm 150 cm 110 cm 120 cm 100 cm 150 cm 110 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The digested sludge from septic tanks, is removed after a maximum period of 3.5 years 5 years 3 years 4 years 3.5 years 5 years 3 years 4 years ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The flow velocity in detritus tanks is 0.05 m/sec 1.25 m/sec 0.09 m/sec None of these 0.05 m/sec 1.25 m/sec 0.09 m/sec None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the flame of a miner’s safety lamp in a manhole extinguishes within 5 minutes, the sewer certainly contains Methane Hydrogen sulphide Oxygen Carbon dioxide Methane Hydrogen sulphide Oxygen Carbon dioxide 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 300 mg/l 100 mg/l 400 mg/l 200 mg/l 300 mg/l 100 mg/l 400 mg/l 200 mg/l ANSWER DOWNLOAD EXAMIANS APP
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