Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 10 ppm 1 ppm 4 ppm 40 ppm 10 ppm 1 ppm 4 ppm 40 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Facultative bacteria are able to work in Presence as well as in absence of oxygen Absence of oxygen only Presence of oxygen only Presence of water Presence as well as in absence of oxygen Absence of oxygen only Presence of oxygen only Presence of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The phenolic compounds in public water supply should not be more than 0.01 ppm 0.001 ppm 0.0001 ppm 0.1 ppm 0.01 ppm 0.001 ppm 0.0001 ppm 0.1 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the sewage contains grease and fatty oils, these are removed in Sedimentation tanks Skimming tanks Detritus tanks Grit chambers Sedimentation tanks Skimming tanks Detritus tanks Grit chambers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following is not a water borne disease? Typhoid Dysentery Cholera Malaria Typhoid Dysentery Cholera Malaria ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The maximum efficiency of BOD removal is achieved in Oxidation ditch Trickling filters Oxidation pond Aerated lagoons Oxidation ditch Trickling filters Oxidation pond Aerated lagoons ANSWER DOWNLOAD EXAMIANS APP
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