Environmental Engineering in CE Which is a secondary air pollutant? Nitrogen dioxide Photochemical smog Dust particles Sulphur dioxide Nitrogen dioxide Photochemical smog Dust particles Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following plants does not emit appreciable amount of SO₂ in atmosphere? Sulphuric acid plant Thermal power plant Nitric acid plant Petroleum refinery Sulphuric acid plant Thermal power plant Nitric acid plant Petroleum refinery ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Disinfection of water is done to remove Color Bad taste Foul odour Bacteria Color Bad taste Foul odour Bacteria ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold limit value (TLV) of CO in air is __________ ppm. 2000 50 5 5000 2000 50 5 5000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant? Alkalis Benzene hexachloride Alkyl benzene sulphonate (ABS) Chlorine Alkalis Benzene hexachloride Alkyl benzene sulphonate (ABS) Chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes Reduction in plant's productivity owing to acid rain Respiratory & lung disease Corrosion of building materials All of these Reduction in plant's productivity owing to acid rain Respiratory & lung disease Corrosion of building materials All of these ANSWER DOWNLOAD EXAMIANS APP