Environmental Engineering in CE Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ percent (by volume). 3 7 1 20 3 7 1 20 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? NOx CO CFC (chloro fluoro carbons) SO₂ NOx CO CFC (chloro fluoro carbons) SO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Out of the following, TLV of __________ is the minimum (about 0.02 ppm). Bromine MIC (methyl iso-cynate) Phosgene Ozone Bromine MIC (methyl iso-cynate) Phosgene Ozone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Polluted water having low BOD are most economically treated in Sedimentation tanks Clarifier Sludge digester Oxidation ponds Sedimentation tanks Clarifier Sludge digester Oxidation ponds ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment, alum[Al2(SO₄)3] is used for the process of Sedimentation Filtration Disinfection Coagulation Sedimentation Filtration Disinfection Coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the Bag filter Electrostatic precipitator Cyclone separator Gravity settling chamber Bag filter Electrostatic precipitator Cyclone separator Gravity settling chamber ANSWER DOWNLOAD EXAMIANS APP
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