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 0.5 0.1 0.05 0.25 0.5 0.1 0.05 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The spacing of bars of perforations of fine screens used for the treatment of sewage, is 3 to 5 mm 2 to 3 mm 8 to 10 mm 5 to 8 mm 3 to 5 mm 2 to 3 mm 8 to 10 mm 5 to 8 mm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Maximum permissible velocity 1.5 m/sec, is adopted in drains Lined with stones With beds of rocks and gravels Both A. and B. Neither A. nor B. Lined with stones With beds of rocks and gravels Both A. and B. Neither A. nor B. ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit and silt of the grit chambers, may not be used for Neither A nor B Raising low lying areas by dumping Both A and B Concreting Neither A nor B Raising low lying areas by dumping Both A and B Concreting ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The formula which accepts the value of rugosity coefficient n = 0.012 to be used in Manning’s formula, is given by William-Hazen Crimp and Bruges Kutter Bazin William-Hazen Crimp and Bruges Kutter Bazin ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pressure exerted by All listed here Pressure sewers are designed to be safe in tension The sewage when running full from inside, is called internal pressure The internal pressure if any, causes tensile stress in the pipe material All listed here Pressure sewers are designed to be safe in tension The sewage when running full from inside, is called internal pressure The internal pressure if any, causes tensile stress in the pipe material ANSWER DOWNLOAD EXAMIANS APP
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