Environmental Engineering in CE In water chemical treatment plant, use of chloramines ensures Removal of permanent hardness Weed control in reservoirs Taste & odour control Disinfection Removal of permanent hardness Weed control in reservoirs Taste & odour control Disinfection ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most of the atmospheric air pollutants are present in large quantity in Stratosphere Thermosphere Trophosphere Mesosphere Stratosphere Thermosphere Trophosphere Mesosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is an adsorbant used for the removal of SO₂ from gas/air? Limestone powder or alkalised alumina Silica gel Bog iron Active carbon Limestone powder or alkalised alumina Silica gel Bog iron Active carbon ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant? Alkyl benzene sulphonate (ABS) Chlorine Benzene hexachloride Alkalis Alkyl benzene sulphonate (ABS) Chlorine Benzene hexachloride Alkalis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate? CO SO₂ CFC (chloro fluoro carbons) NOx CO SO₂ CFC (chloro fluoro carbons) NOx ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following processes is involved in the biochemical treatment of sewage effluents? Fermentation Dehydration Reduction Oxidation Fermentation Dehydration Reduction Oxidation ANSWER DOWNLOAD EXAMIANS APP
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