Environmental Engineering in CE Which of the following is a secondary air pollutant? Photochemical smog Nitrogen dioxide Sulphur dioxide Dust particles Photochemical smog Nitrogen dioxide Sulphur dioxide Dust particles 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? Chlorine Benzene hexachloride Alkalis Alkyl benzene sulphonate (ABS) Chlorine Benzene hexachloride Alkalis Alkyl benzene sulphonate (ABS) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the Gravity settling chamber Cyclone separator Bag filter Electrostatic precipitator Gravity settling chamber Cyclone separator Bag filter Electrostatic precipitator ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of Nā in contaminated air at which it acts as a natural asphyxant is ā„ __________ percent. 88 92 84 80 88 92 84 80 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes All of these Respiratory & lung disease Corrosion of building materials Reduction in plant's productivity owing to acid rain All of these Respiratory & lung disease Corrosion of building materials Reduction in plant's productivity owing to acid rain ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Biological oxidation None of these Incineration Composting Biological oxidation None of these Incineration Composting ANSWER DOWNLOAD EXAMIANS APP
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