Waste Water Engineering Traps Create symphonic action to increase the quick disposal of sewerage Dissolve the foul gases Are used to trap the rats entering sewers Are water seals which prevent the entry of foul gases Create symphonic action to increase the quick disposal of sewerage Dissolve the foul gases 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 To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of Sulphuric acid Hydrochloric acid Citric acid Nitric acid Sulphuric acid Hydrochloric acid Citric acid Nitric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.25 0.05 0.1 0.5 0.25 0.05 0.1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering An inverted siphon is designed generally for Three pipes Two pipes Four pipes One pipe Three pipes Two pipes Four pipes One pipe ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Discrete or granular particles change their Weight Size Shape None of these Weight Size Shape None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For providing an Indian type W.C., the R.C.C. slabs in the toilet portion Should be kept 20 cm above the adjacent portion Should be sunk by 50 cm Should be sunk by 20 cm Need not be sunk Should be kept 20 cm above the adjacent portion Should be sunk by 50 cm Should be sunk by 20 cm Need not be sunk ANSWER DOWNLOAD EXAMIANS APP
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