Waste Water Engineering The detention time of a circular tank of diameter d and water depth H, for receiving the sewage Q per hour, is d (0.285d + 0.011H)/Q d (0.022d + 0.085H)/Q d (0.785d + 0.011H)/Q d² (0.011d + 0.785H)/Q d (0.285d + 0.011H)/Q d (0.022d + 0.085H)/Q d (0.785d + 0.011H)/Q d² (0.011d + 0.785H)/Q ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The gas which may cause explosion in sewers, is Carbondioxide Carbon monoxide Methane Ammonia Carbondioxide Carbon monoxide Methane Ammonia ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The self-cleansing velocity of water flowing through pipe lines, is 2 metres/sec 0.5 metre/sec 1 metre/sec 0.25 metre/sec 2 metres/sec 0.5 metre/sec 1 metre/sec 0.25 metre/sec ANSWER DOWNLOAD EXAMIANS APP
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 150 mg/l 100 mg/l 250 mg/l 50 mg/l 150 mg/l 100 mg/l 250 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Maximum permissible velocity 1.5 m/sec, is adopted in drains Lined with stones Both A. and B. Neither A. nor B. With beds of rocks and gravels Lined with stones Both A. and B. Neither A. nor B. With beds of rocks and gravels ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The flow velocity in detritus tanks is None of these 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 ANSWER DOWNLOAD EXAMIANS APP
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