Environmental Engineering in CE If carbon monoxide content in atmospheric air exceeds __________ ppm, death is bound to occur. 500 50 1000 3000 (i.e. 0.3%) 500 50 1000 3000 (i.e. 0.3%) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is Left as such without any treatment Diluted with fresh water to reduce its acidity Neutralised by alkali treatment None of these Left as such without any treatment Diluted with fresh water to reduce its acidity Neutralised by alkali treatment None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE BOD of raw municipal sewage may be in the range of about __________ mg/litre. 5-10 150-300 1-2 2000-3000 5-10 150-300 1-2 2000-3000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following sources is responsible for maximum air pollution? Automobiles exhaust Forest fire Industrial chimney exhaust Photochemical oxidation of organic matter Automobiles exhaust Forest fire Industrial chimney exhaust Photochemical oxidation of organic matter ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust by human being causes Asphyxiation Shortness of breath Both B & C Tuberculosis Asphyxiation Shortness of breath Both B & C Tuberculosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE World environment day is observed every year on the 5th of July June December September July June December September ANSWER DOWNLOAD EXAMIANS APP
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