Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Incineration None of these Biological oxidation Composting Incineration None of these Biological oxidation Composting ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High noise level in a chemical plant can be controlled by the Suppression of noise at the source itself Path control of noise Protection of operating personnel All of these Suppression of noise at the source itself Path control of noise Protection of operating personnel All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Salt content in sea water is about __________ percent. 3.5 1 10 0.5 3.5 1 10 0.5 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 Presence of dissolved impurities of __________ is responsible for the red brownish color of water. Bi-carbonates Arsenic Carbonates Iron & manganese Bi-carbonates Arsenic Carbonates Iron & manganese ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Beyond what concentration of H₂S in air, acute danger to human life exists? 50 ppm 300 ppm 100 ppm 700 ppm 50 ppm 300 ppm 100 ppm 700 ppm ANSWER DOWNLOAD EXAMIANS APP
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