Environmental Engineering in CE The pH value of oxidised sewage is about 13.4 1.8 6.2 7.3 13.4 1.8 6.2 7.3 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dissolved oxygen content in river water is around __________ ppm. 250 500 5 100 250 500 5 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. 5 1 500 50 5 1 500 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called None of these Biological oxidation Incineration Composting None of these Biological oxidation Incineration Composting ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a secondary air pollutant? Dust particles Photochemical smog Nitrogen dioxide Sulphur dioxide Dust particles Photochemical smog Nitrogen dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tri-sodium phosphate is used in boiler water treatment to reduce Dissolved oxygen Turbidity Suspended silica Caustic embrittlement Dissolved oxygen Turbidity Suspended silica Caustic embrittlement ANSWER DOWNLOAD EXAMIANS APP
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