Environmental Engineering in CE Which is a secondary air pollutant? Sulphur dioxide Nitrogen dioxide Dust particles Photochemical smog Sulphur dioxide Nitrogen dioxide Dust particles Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Direct reaction of unsaturated hydrocarbons with either NO or NO₂ produces an eye irritating pollutant compound known as Poly acrylonitrile Benzopyrene Peroxy acetyl nitrate (PAN) or methyl nitrile Photochemical smog Poly acrylonitrile Benzopyrene Peroxy acetyl nitrate (PAN) or methyl nitrile Photochemical smog ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 80% less than 200 mesh size particles are called Aggregates Grit Smoke Powder Aggregates Grit Smoke Powder 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 Corrosion of building materials All of these Respiratory & lung disease Reduction in plant's productivity owing to acid rain Corrosion of building materials All of these Respiratory & lung disease 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? Smog & ozone Hydrogen fluoride & nitrogen oxides Sulphur dioxide & spray of weed killers Carbon monoxide Smog & ozone Hydrogen fluoride & nitrogen oxides Sulphur dioxide & spray of weed killers Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing __________ molecules of ozones. 10¹⁵ 10² 10⁵ 10⁹ 10¹⁵ 10² 10⁵ 10⁹ ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS