Environmental Engineering in CE Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air. Hydrogen sulphides Nitrogen dioxide Hydrocarbons Hydrogen flouride Hydrogen sulphides Nitrogen dioxide Hydrocarbons Hydrogen flouride ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Direct reaction of unsaturated hydrocarbons with either NO or NO₂ produces an eye irritating pollutant compound known as Benzopyrene Poly acrylonitrile Photochemical smog Peroxy acetyl nitrate (PAN) or methyl nitrile Benzopyrene Poly acrylonitrile Photochemical smog Peroxy acetyl nitrate (PAN) or methyl nitrile ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dose of chlorine for disinfection of water is about __________ mg/litre of water. 0.01 0.1 0.3 1 0.01 0.1 0.3 1 ANSWER DOWNLOAD EXAMIANS APP
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. Ortho-xylene Potassium cyanide Coal ash None of these Ortho-xylene Potassium cyanide Coal ash None of these ANSWER DOWNLOAD EXAMIANS APP
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 H₂S present in gaseous stream can be removed by adsorption on Active carbon Limestone powder Silica gel Bog iron Active carbon Limestone powder Silica gel Bog iron ANSWER DOWNLOAD EXAMIANS APP
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