Environmental Engineering in CE The permissible color for domestic water supply is __________ ppm. 1000 20 100 1 1000 20 100 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most of the bacteria in sewage are Anerobic None of these Parasitic Saprophytic Anerobic None of these Parasitic Saprophytic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it. Carbon dioxide Hydrogen Ozone None of these Carbon dioxide Hydrogen Ozone None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Shouting by a man at his full voice corresponds to a voice level of about __________ decibels. 25 80 50 120 25 80 50 120 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 Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate All of these Coagulation and flocculation of colloids 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 All of these Coagulation and flocculation of colloids Oxidation of carbonaceous matter to CO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from petroleum refineries is CO₂, H₂S & NO₂ CO, SO₂ & H₂S SO₃, NO₂ & CO₂ CO₂, NO & SO₃ CO₂, H₂S & NO₂ CO, SO₂ & H₂S SO₃, NO₂ & CO₂ CO₂, NO & SO₃ ANSWER DOWNLOAD EXAMIANS APP
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