Environmental Engineering in CE Which of the following is not a natural source of air pollution? Volcanic eruptions and lightening discharges Biological decay of vegetable matter None of these Photochemical oxidation of organic matter Volcanic eruptions and lightening discharges Biological decay of vegetable matter None of these Photochemical oxidation of organic matter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most active zone of atmosphere in which weathering events like rain, storm & lightning occur? None of these Troposphere Thermosphere Stratosphere None of these Troposphere Thermosphere Stratosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by Lagoons Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Biological oxygen pond Filtration Lagoons Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Biological oxygen pond Filtration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The Killer gas which caused Bhopal gas tragedy in 1984 was Carbon monoxide Phosgene Sulphur dioxide Methyl iso-cynate (MIC) Carbon monoxide Phosgene Sulphur dioxide Methyl iso-cynate (MIC) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. 85 125 145 105 85 125 145 105 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 Photochemical smog Poly acrylonitrile Peroxy acetyl nitrate (PAN) or methyl nitrile Benzopyrene Photochemical smog Poly acrylonitrile Peroxy acetyl nitrate (PAN) or methyl nitrile ANSWER DOWNLOAD EXAMIANS APP
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