Environmental Engineering in CE Lagooning process is mainly a means of the Reduction of excessive flow in sewers None of these Biological treatment of wastes Sludge disposal Reduction of excessive flow in sewers None of these Biological treatment of wastes Sludge disposal ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream? Circular clarifier Sedimentation tank Chemical coagulation Mechanical flocculation Circular clarifier Sedimentation tank Chemical coagulation Mechanical flocculation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases. Reduce SO₂ content in Catalytically convert SO₂ to SO₃ in Increase the dew point of None of these Reduce SO₂ content in Catalytically convert SO₂ to SO₃ in Increase the dew point of None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE TLV of ozone (O₃) and phosgene (COCl₂) in air is __________ ppm. 0.1 100 25 1000 0.1 100 25 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Chlorine Coagulation Irradiation of water by ultraviolet light Cation exchanger Chlorine Coagulation Irradiation of water by ultraviolet light Cation exchanger ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a secondary air pollutant? Sulphur dioxide Photochemical smog All of these Ozone Sulphur dioxide Photochemical smog All of these Ozone ANSWER DOWNLOAD EXAMIANS APP
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