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 Potassium cyanide Ortho-xylene None of these Coal ash Potassium cyanide Ortho-xylene None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant for removal of nitrogen oxides from gas/air? Pulverised limestone Active carbon Bog iron (iron oxide) Silica gel Pulverised limestone Active carbon Bog iron (iron oxide) Silica gel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by Both A & B Natural aeration of water stream Photosynthetic action of algae Neither A nor B Both A & B Natural aeration of water stream Photosynthetic action of algae Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in None of these Roentgen Hertz Decibel None of these Roentgen Hertz Decibel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? Carbon monoxide Smog & ozone Sulphur dioxide & spray of weed killers Hydrogen fluoride & nitrogen oxides Carbon monoxide Smog & ozone Sulphur dioxide & spray of weed killers Hydrogen fluoride & nitrogen oxides ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants is absent in the emissions from a fertiliser plant ? SO₂ & SO₃ NO₂ NH₃ CO SO₂ & SO₃ NO₂ NH₃ CO ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS