Environmental Engineering in CE The permissible color for domestic water supply is __________ ppm. 1 20 1000 100 1 20 1000 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) of CO in air is __________ ppm. 2000 50 5000 5 2000 50 5000 5 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a weightless pollutant? Thermal pollution Radioactive rays SPM Noise pollution Thermal pollution Radioactive rays SPM Noise pollution ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fresh domestic sewage is __________ in color. Grey Red Dark brown Black Grey Red Dark brown Black ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a natural source of air pollution? Photochemical oxidation of organic matter None of these Biological decay of vegetable matter Volcanic eruptions and lightening discharges Photochemical oxidation of organic matter None of these Biological decay of vegetable matter Volcanic eruptions and lightening discharges ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants is absent in the emissions from a fertiliser plant ? NO₂ CO SO₂ & SO₃ NH₃ NO₂ CO SO₂ & SO₃ NH₃ ANSWER DOWNLOAD EXAMIANS APP
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