Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Copper sulphate Sodium permanganate Sulphuric acid Lime Copper sulphate Sodium permanganate Sulphuric acid Lime ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow does not depend on Length of sewer Hydraulic mean depth of sewer Grade of sewer Roughness of sewer Length of sewer Hydraulic mean depth of sewer Grade of sewer Roughness of sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The hydraulic mean depth (HMD) for an egg-shaped sewer flowing two-third full is None of these Less than HMD when flowing full Greater than HMD when flowing full Equal to HMD when flowing full None of these Less than HMD when flowing full Greater than HMD when flowing full Equal to HMD when flowing full ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable method of forecasting population for a young and rapidly increasing city is Arithmetical increase method Graphical method Incremental increase method Geometrical increase method Arithmetical increase method Graphical method Incremental increase method Geometrical increase method ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In lime-soda process Only carbonate hardness is removed Only noncarbonated hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Only carbonate hardness is removed Only noncarbonated hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 50 to 150 0 to 50 350 to 500 150 to 350 50 to 150 0 to 50 350 to 500 150 to 350 ANSWER DOWNLOAD EXAMIANS APP
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