Environmental Engineering On standard silica scale, the turbidity in drinking water should be limited to 20 ppm 30 ppm 50 ppm 10 ppm 20 ppm 30 ppm 50 ppm 10 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Facultative bacteria are able to work in Absence of oxygen only Presence of water Presence of oxygen only Presence as well as in absence of oxygen Absence of oxygen only Presence of water Presence of oxygen only Presence as well as in absence of oxygen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period for oxidation ponds is usually kept as 24 hours 10 to 15 days 48 hours 3 months 24 hours 10 to 15 days 48 hours 3 months ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The slope of sewer shall be Steeper than 1 in 20 Given in the direction opposite to natural slope of ground Zero Given in the direction of natural slope of ground Steeper than 1 in 20 Given in the direction opposite to natural slope of ground Zero Given in the direction of natural slope of ground ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of oxidation pond is that Maintenance and operation cost are high BOD removal is very low None of these Large area is required for construction Maintenance and operation cost are high BOD removal is very low None of these Large area is required for construction ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The biochemical treatment of sewage effluents is essentially a process of Dehydration Oxidation Reduction Alkalinization Dehydration Oxidation Reduction Alkalinization ANSWER DOWNLOAD EXAMIANS APP
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