Environmental Engineering in CE For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. 500 1000 5 10000 500 1000 5 10000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. Remains constant Decreases May increase or decrease ; depends on the chemical characteristics of polluted water Increases Remains constant Decreases May increase or decrease ; depends on the chemical characteristics of polluted water Increases 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 2000-3000 1-2 5-10 150-300 2000-3000 1-2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fresh domestic sewage is __________ in color. Grey Dark brown Black Red Grey Dark brown Black Red ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of nitrogen dioxide in atmospheric air causes Cancer Asphyxiation Bronchitis Corrosion Cancer Asphyxiation Bronchitis Corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dissolved oxygen content in river water is around __________ ppm. 5 100 500 250 5 100 500 250 ANSWER DOWNLOAD EXAMIANS APP
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