Waste Water Engineering Aerobic bacterias Oxidise organic matter in sewage All of these Consume organic matter as their food Flourish in the presence of free oxygen Oxidise organic matter in sewage All of these Consume organic matter as their food Flourish in the presence of free oxygen ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the length of overland flow from the critical point to the mouth of drain is 13.58 km and difference in level between the critical point and drain mouth is 10 m, the inlet time is 6 hours 2 hours 8 hours 4 hours 6 hours 2 hours 8 hours 4 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to Carbonaceous demand All of these First stage demand Initial demand Carbonaceous demand All of these First stage demand Initial demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Traps Are water seals which prevent the entry of foul gases Dissolve the foul gases Are used to trap the rats entering sewers Create symphonic action to increase the quick disposal of sewerage Are water seals which prevent the entry of foul gases Dissolve the foul gases Are used to trap the rats entering sewers Create symphonic action to increase the quick disposal of sewerage ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The self-cleansing velocity of water flowing through pipe lines, is 1 metre/sec 0.25 metre/sec 2 metres/sec 0.5 metre/sec 1 metre/sec 0.25 metre/sec 2 metres/sec 0.5 metre/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of man holes along a straight portion of a sewer is 300 m, the diameter of the sewer may be 1.5 m > 1.5 m 1.2 m 0.9 cm 1.5 m > 1.5 m 1.2 m 0.9 cm ANSWER DOWNLOAD EXAMIANS APP
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