Environmental Engineering in CE In sewage treatment, its sedimentation is speeded up by commonly adding Lime Hydrochloric acid Copper sulphate Sodium sulphate Lime Hydrochloric acid Copper sulphate Sodium sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is a secondary air pollutant? Photochemical smog Sulphur dioxide Dust particles Nitrogen dioxide Photochemical smog Sulphur dioxide Dust particles Nitrogen dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Incineration Biological oxidation Composting None of these Incineration Biological oxidation Composting None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible turbidity in potable water is __________ ppm. 10 250 1000 1 10 250 1000 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause Explosion Undesirable plant growth Corrosion Non biodegradable foam Explosion Undesirable plant growth Corrosion Non biodegradable foam ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Shouting by a man at his full voice corresponds to a voice level of about __________ decibels. 80 25 120 50 80 25 120 50 ANSWER DOWNLOAD EXAMIANS APP
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