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 I-131 Ra-226 Au-198 Sr-90 I-131 Ra-226 Au-198 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Ethanolamine is an absorbant used for the removal of __________ from air/gas. H₂S Both B & C SO₂ HF H₂S Both B & C SO₂ HF ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE World environment day is observed every year on the 5th of September July June December September July June December ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The average thickness of ozone layer in stratosphere is about __________ dobson unit (DU). 750 20 1500 230 750 20 1500 230 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause Non biodegradable foam Corrosion Undesirable plant growth Explosion Non biodegradable foam Corrosion Undesirable plant growth Explosion 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 Diluted with fresh water to reduce its acidity Left as such without any treatment Neutralised by alkali treatment None of these Diluted with fresh water to reduce its acidity Left as such without any treatment Neutralised by alkali treatment None of these ANSWER DOWNLOAD EXAMIANS APP
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