Environmental Engineering in CE Deaeration of high pressure boiler feed water is done to reduce Foaming from boilers Its silica content Its dissolved oxygen content Caustic embrittlement Foaming from boilers Its silica content Its dissolved oxygen content Caustic embrittlement ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a green house gas other than CO₂ ? All of these Chlorofluro carbons (CFC) Methane Nitrous oxide All of these Chlorofluro carbons (CFC) Methane Nitrous oxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 80% less than 200 mesh size particles are called Grit Powder Aggregates Smoke Grit Powder Aggregates Smoke ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Incineration Composting Biological oxidation None of these Incineration Composting Biological oxidation None of these 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 None of these Neutralised by alkali treatment Left as such without any treatment Diluted with fresh water to reduce its acidity None of these Neutralised by alkali treatment Left as such without any treatment ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tri-sodium phosphate is used in boiler water treatment to reduce Suspended silica Caustic embrittlement Turbidity Dissolved oxygen Suspended silica Caustic embrittlement Turbidity Dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
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