Environmental Engineering in CE Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by Biological oxygen pond Filtration Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Lagoons Biological oxygen pond Filtration Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Lagoons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE For existence of aquatic life in water, the dissolved oxygen content in it, should not be less than __________ ppm. 1000 10000 5 500 1000 10000 5 500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air. Hydrogen sulphides Nitrogen dioxide Hydrocarbons Hydrogen flouride Hydrogen sulphides Nitrogen dioxide Hydrocarbons Hydrogen flouride ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Siderosis is a disease caused by the inhalation of __________ dust. None of these Iron Silica Coal None of these Iron Silica Coal ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Hydrogen ion concentration in distilled water is 7 x 10⁷ 10⁻⁷ 7 x 10⁻⁷ 10⁷ 7 x 10⁷ 10⁻⁷ 7 x 10⁻⁷ 10⁷ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Pollution by particulate matter emission in the atmosphere does not take place during metal Grinding Polishing Machining Cutting Grinding Polishing Machining Cutting ANSWER DOWNLOAD EXAMIANS APP
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