Environmental Engineering in CE The weakest sound that can be heard by a person in a quiet environment is equivalent to __________ decibel. 20 5 10 1 20 5 10 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from iron & steel industry is SO₃, NO₂ & CO₂ H₂S, NO & SO₃ CO, CO₂ & SO₂ CO₂, H₂S & NO₂ SO₃, NO₂ & CO₂ H₂S, NO & SO₃ CO, CO₂ & SO₂ CO₂, H₂S & NO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? Carbon monoxide Hydrogen fluoride & nitrogen oxides Sulphur dioxide & spray of weed killers Smog & ozone Carbon monoxide Hydrogen fluoride & nitrogen oxides Sulphur dioxide & spray of weed killers Smog & ozone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Atmospheric pollution caused by the exhaust gas of supresonic transport air-crafts is mostly in the atmospheric region called Thermosphere Troposphere Stratosphere Mesosphere Thermosphere Troposphere Stratosphere Mesosphere 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 Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Biological oxygen pond Lagoons Filtration Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Biological oxygen pond Lagoons Filtration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the Global warming Ionosphere Green house Atmospheric effect Global warming Ionosphere Green house Atmospheric effect ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS