Environmental Engineering in CE Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million). 1.2 0.2 0.002 4.8 1.2 0.2 0.002 4.8 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutant present in automobile exhaust is CO₂ NO CO Hydrocarbons CO₂ NO CO Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutants released from iron & steel industry is CO, CO₂ & SO₂ CO₂, H₂S & NO₂ H₂S, NO & SO₃ SO₃, NO₂ & CO₂ CO, CO₂ & SO₂ CO₂, H₂S & NO₂ H₂S, NO & SO₃ SO₃, NO₂ & CO₂ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water treatment, alum[Al2(SO₄)3] is used for the process of Coagulation Disinfection Filtration Sedimentation Coagulation Disinfection Filtration Sedimentation 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? Hydrogen fluoride & nitrogen oxides Carbon monoxide Sulphur dioxide & spray of weed killers Smog & ozone Hydrogen fluoride & nitrogen oxides Carbon monoxide Sulphur dioxide & spray of weed killers Smog & ozone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in Hertz Decibel None of these Roentgen Hertz Decibel None of these Roentgen ANSWER DOWNLOAD EXAMIANS APP
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