Waste Water Engineering In the activated sludge process Water is removed by centrifugal action Sludge is activated by constant stirring Aeration is done with an admixture of previously aerated sludge Aeration is continued till stability Water is removed by centrifugal action Sludge is activated by constant stirring Aeration is done with an admixture of previously aerated sludge Aeration is continued till stability ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following resists hydrogen sulphide corrosion? R.C.C. Glazed stone wares Asbestos cement Glazed ware R.C.C. Glazed stone wares Asbestos cement Glazed ware ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is [(100 – P1)/(100 + P2)] V1 [(100 + P2)/(100 – P1)] V1 [(100 – P1)/(100 – P2)] V1 [(100 + P1)/(100 – P2)] V1 [(100 – P1)/(100 + P2)] V1 [(100 + P2)/(100 – P1)] V1 [(100 – P1)/(100 – P2)] V1 [(100 + P1)/(100 – P2)] V1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To maintain aerobic biological activity, the moisture content of the compost mass should be about 0.55 0.45 0.5 0.6 0.55 0.45 0.5 0.6 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Traps Dissolve the foul gases Create symphonic action to increase the quick disposal of sewerage Are used to trap the rats entering sewers Are water seals which prevent the entry of foul gases Dissolve the foul gases Create symphonic action to increase the quick disposal of sewerage Are used to trap the rats entering sewers Are water seals which prevent the entry of foul gases ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For large sewers, maximum distance between manholes may be 100 m 300 m 200 m 50 m 100 m 300 m 200 m 50 m ANSWER DOWNLOAD EXAMIANS APP
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