Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Anaerobic Aerobic Saphrophytic Parasitic Anaerobic Aerobic Saphrophytic Parasitic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Carcinogenic air pollutants cause Bone decay Asphyxiation (suffocation) Anemia Cancer Bone decay Asphyxiation (suffocation) Anemia Cancer 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 Increase the dew point of None of these Catalytically convert SO₂ to SO₃ in Reduce SO₂ content in Increase the dew point of None of these Catalytically convert SO₂ to SO₃ in ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise level in a chemical plant can be controlled by the Path control of noise Protection of operating personnel Suppression of noise at the source itself All of these Path control of noise Protection of operating personnel Suppression of noise at the source itself All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in All of these Oxidation of carbonaceous matter to CO₂ Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate Coagulation and flocculation of colloids All of these Oxidation of carbonaceous matter to CO₂ Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate Coagulation and flocculation of colloids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fine grit present in sewage is removed in the __________ during sewage treatment. Detritus tank Grit chamber Skimming tank Trickling filter Detritus tank Grit chamber Skimming tank Trickling filter ANSWER DOWNLOAD EXAMIANS APP
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