Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.5 to 4.5 m/sec 3.0 to 4.0 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.5 to 4.5 m/sec 3.0 to 4.0 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The discharge per unit plan area of a sedimentation tank, is generally called Over flow rate All of these Surface loading Over flow velocity Over flow rate All of these Surface loading Over flow velocity ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For a peak discharge of 0.0157 cumec, with a velocity of 0.9 m/sec, the diameter of the sewer main, is 10 cm 12 cm 18 cm 15 cm 10 cm 12 cm 18 cm 15 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Skimming tanks are Used to remove the grease and oil Those from which sludge is skimmed out Tanks provided with self- cleansing screens Improved version of grit chambers Used to remove the grease and oil Those from which sludge is skimmed out Tanks provided with self- cleansing screens Improved version of grit chambers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Maximum permissible velocity 1.5 m/sec, is adopted in drains Neither A. nor B. Both A. and B. With beds of rocks and gravels Lined with stones Neither A. nor B. Both A. and B. With beds of rocks and gravels Lined with stones ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The rate of accumulation of sludge in septic tanks is recommended as 30 litres/person/year 30 litres/person/month 25 litres/person/month 25 litres/person/year 30 litres/person/year 30 litres/person/month 25 litres/person/month 25 litres/person/year ANSWER DOWNLOAD EXAMIANS APP
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