Waste Water Engineering ‘Cowl’ is provided at Upper end of ventilating column Lower end of ventilating column First step in manhole Upper end of the manhole Upper end of ventilating column Lower end of ventilating column First step in manhole Upper end of the manhole ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a grit chamber of a sewage treatment plant, 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 Depth of 0.9 m to 1.20 m is kept All of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering During preliminary treatment of a sewage Floating materials are removed by screening All listed here Oil and grease are removed from skimming tanks Girt and sand are removed by girt chambers Floating materials are removed by screening All listed here Oil and grease are removed from skimming tanks Girt and sand are removed by girt chambers ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A well oxidized sewage contains nitrogen mainly as None of these Nitrates Nitrites Free ammonia None of these Nitrates Nitrites Free ammonia ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is Vs = 418 (Gs – Gw)d² [(3T + 70)/100] Vs = 218 (Gs – Gw)d² [(3T + 70)/100] Vs = 418 (Gs – Gw) d [(3T + 70)/100] Vs = 218 (Gs – Gw)d [(3T + 70)/100] Vs = 418 (Gs – Gw)d² [(3T + 70)/100] Vs = 218 (Gs – Gw)d² [(3T + 70)/100] Vs = 418 (Gs – Gw) d [(3T + 70)/100] Vs = 218 (Gs – Gw)d [(3T + 70)/100] ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit and silt of the grit chambers, may not be used for Concreting Neither A nor B Both A and B Raising low lying areas by dumping Concreting Neither A nor B Both A and B Raising low lying areas by dumping ANSWER DOWNLOAD EXAMIANS APP
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