Waste Water Engineering The spacing of bars for perforations in coarse screens used for the treatment of sewage, is 20 mm 50 mm 30 mm 40 mm 20 mm 50 mm 30 mm 40 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering As compared to fresh river water, sea water contains oxygen 10% more 20% less 20% more 10% less 10% more 20% less 20% more 10% less ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewers the velocity of flow should not be Less than the self-cleansing velocity More than 20 m/sec Less than 10 m/sec More than the self-cleansing velocity Less than the self-cleansing velocity More than 20 m/sec Less than 10 m/sec More than the self-cleansing velocity ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In septic tanks, The clear space between the baffle top and covering slab is about 7.5 cm All listed here Free board of 0.3 m may be provided The baffles or tees are extended up to top level of scum The clear space between the baffle top and covering slab is about 7.5 cm All listed here Free board of 0.3 m may be provided The baffles or tees are extended up to top level of scum ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In the activated sludge process Sludge is activated by constant stirring Water is removed by centrifugal action Aeration is done with an admixture of previously aerated sludge Aeration is continued till stability Sludge is activated by constant stirring Water is removed by centrifugal action Aeration is done with an admixture of previously aerated sludge Aeration is continued till stability ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a grit chamber of a sewage treatment plant, Depth of 0.9 m to 1.20 m is kept All of these Flow velocity 0.15 m to 0.3 m/sec is kept One minute of detention period is kept Depth of 0.9 m to 1.20 m is kept All of these Flow velocity 0.15 m to 0.3 m/sec is kept One minute of detention period is kept ANSWER DOWNLOAD EXAMIANS APP
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