Waste Water Engineering The grit chambers of sewage treatment plants, are generally cleaned after 12 days 14 days 2 days 7 days 12 days 14 days 2 days 7 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The coagulant which is generally not used for treating the sewage, is Chlorinated coppers Alum Ferric chloride Ferric sulphate Chlorinated coppers Alum Ferric chloride Ferric sulphate ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention time (t) of a settling tank, may be defined as the time required for The flow of sewage to fill the tank A particle to travel along its length None of these A particle to travel from top surface to bottom sludge zone The flow of sewage to fill the tank A particle to travel along its length None of these A particle to travel from top surface to bottom sludge zone ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Skimming tanks are Tanks provided with self- cleansing screens Those from which sludge is skimmed out Used to remove the grease and oil Improved version of grit chambers Tanks provided with self- cleansing screens Those from which sludge is skimmed out Used to remove the grease and oil Improved version of grit chambers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering ‘Cowl’ is provided at Upper end of ventilating column First step in manhole Lower end of ventilating column Upper end of the manhole Upper end of ventilating column First step in manhole Lower end of ventilating column Upper end of the manhole ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the length of overland flow from the critical point to the mouth of drain is 13.58 km and difference in level between the critical point and drain mouth is 10 m, the inlet time is 4 hours 6 hours 2 hours 8 hours 4 hours 6 hours 2 hours 8 hours ANSWER DOWNLOAD EXAMIANS APP
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