Environmental Engineering in CE Which of the following is the most major constituents of air pollutants? Carbon monoxide Oxides of sulphur Oxides of nitrogen Hydrogen sulphide Carbon monoxide Oxides of sulphur Oxides of nitrogen Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following acts as a natural source of air pollution? None of these Deforestation Forest fire Volcanic eruption None of these Deforestation Forest fire Volcanic eruption ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a natural source of air pollution? None of these Volcanic eruptions and lightening discharges Photochemical oxidation of organic matter Biological decay of vegetable matter None of these Volcanic eruptions and lightening discharges Photochemical oxidation of organic matter Biological decay of vegetable matter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE When the concentration of SO₂ in air is greater than __________ ppm, it gives a pungent smell. 1 0.1 4 0.01 1 0.1 4 0.01 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? Sr-90 Au-198 I-131 Ra-226 Sr-90 Au-198 I-131 Ra-226 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Exposure to SO₂ containing chimney gases results in the All of these Increased drying & hardening time of paints Acceleration of corrosion rates of metals Reduction in strength of leather & cloth All of these Increased drying & hardening time of paints Acceleration of corrosion rates of metals Reduction in strength of leather & cloth ANSWER DOWNLOAD EXAMIANS APP
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