Environmental Engineering in CE In a sedimentation tank, the detention period for water ranges from __________ hours. 2 to 4 24 to 32 16 to 20 8 to 12 2 to 4 24 to 32 16 to 20 8 to 12 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A shallow pond in which the sewage is retained and biologically treated is called Skimming tank Lagoon Imhoff tank Oxidation Skimming tank Lagoon Imhoff tank Oxidation 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 Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate Oxidation of carbonaceous matter to CO₂ Coagulation and flocculation of colloids All of these Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate Oxidation of carbonaceous matter to CO₂ Coagulation and flocculation of colloids ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Aerosols present in atmospheric air may be Neutral Negatively charged Positively charged Combination of all A, B & C Neutral Negatively charged Positively charged Combination of all A, B & C ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in Iron & steel plant Petroleum refinery Municipal sewage treatment Food industry Iron & steel plant Petroleum refinery Municipal sewage treatment Food industry ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called Smoke Powder Dust Grit Smoke Powder Dust Grit ANSWER DOWNLOAD EXAMIANS APP
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