Environmental Engineering in CE Fine grit present in sewage is removed in the __________ during sewage treatment. Detritus tank Skimming tank Trickling filter Grit chamber Detritus tank Skimming tank Trickling filter Grit chamber ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Carbonaceous particles having size less than 1 μm are called Smoke Aerosols Grit Aggregates Smoke Aerosols Grit Aggregates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Thermal pollution of water increases its toxicity and oxidation of oxygen demanding waste besides favouring bacterial growth. A rise in water temperature by 10°C, doubles the toxic effects of __________ present in it. Coal ash None of these Potassium cyanide Ortho-xylene Coal ash None of these Potassium cyanide Ortho-xylene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A shallow pond in which the sewage is retained and biologically treated is called Lagoon Imhoff tank Oxidation Skimming tank Lagoon Imhoff tank Oxidation Skimming tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. Decreases May increase or decrease ; depends on the chemical characteristics of polluted water Increases Remains constant Decreases May increase or decrease ; depends on the chemical characteristics of polluted water Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a secondary air pollutant? Ozone All of these Sulphur dioxide Photochemical smog Ozone All of these Sulphur dioxide Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
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