Environmental Engineering in CE Limestone powder is injected during pulverised coal burning in boilers to __________ the flue gases. Catalytically convert SO₂ to SO₃ in Reduce SO₂ content in None of these Increase the dew point of Catalytically convert SO₂ to SO₃ in Reduce SO₂ content in None of these Increase the dew point of ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a secondary air pollutant? Ozone Sulphur dioxide All of these Photochemical smog Ozone Sulphur dioxide All of these Photochemical smog 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? CFC (chloro fluoro carbons) CO SO₂ NOx CFC (chloro fluoro carbons) CO SO₂ NOx ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram) 800 750 90 10 800 750 90 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ozone is A primary pollutant A secondary pollutant Both B & C Impervious to ultra-violet rays A primary pollutant A secondary pollutant Both B & C Impervious to ultra-violet rays ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Polluted water having low BOD are most economically treated in Clarifier Sludge digester Oxidation ponds Sedimentation tanks Clarifier Sludge digester Oxidation ponds Sedimentation tanks ANSWER DOWNLOAD EXAMIANS APP
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