Waste Water Engineering Pick up the incorrect statement from the following for allowing workers to enter sewers Proper tests for the presence of poisonous gases must be carried out The particular manhole and one manhole on upstream and one manhole on downstream should remain open for 30 minutes Warning signals should be erected The men entering the manhole should be advised to smoke in the sewer Proper tests for the presence of poisonous gases must be carried out The particular manhole and one manhole on upstream and one manhole on downstream should remain open for 30 minutes Warning signals should be erected The men entering the manhole should be advised to smoke in the sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Before discharging the foul sewage into rivers, it is generally treated by Sedimentation Screening All listed here Oxidation Sedimentation Screening All listed here Oxidation ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The pH value of fresh sewage is usually More than 7 Equal to zero Less than 7 Equal to 7 More than 7 Equal to zero Less than 7 Equal to 7 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering R.M.O. expenses include Running expenses Maintenance expenses All of these Operation expenses Running expenses Maintenance expenses All of these Operation expenses ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 3.5 to 4.5 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.0 to 4.0 m/sec 3.5 to 4.5 m/sec 2.5 to 3.0 m/sec 4.5 to 5.5 m/sec 3.0 to 4.0 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewer which transports the sewage to the point of treatment, is called Branch sewer Out-fall sewer Main sewer House sewer Branch sewer Out-fall sewer Main sewer House sewer ANSWER DOWNLOAD EXAMIANS APP
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