Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Irradiation of water by ultraviolet light Coagulation Cation exchanger Chlorine Irradiation of water by ultraviolet light Coagulation Cation exchanger Chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Suspended solid present in the waste water generated in blast furnace gas cooling and cleaning plant is removed by Lagoons Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Filtration Biological oxygen pond Lagoons Radial settling tank (thickener) using coagulant (lime & ferrous sulphate) Filtration Biological oxygen pond ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible limit of mercury in human blood is __________ micrograms/100 c.c. 1 82 19 7 1 82 19 7 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The resistance of water to the passage of light through it is a measure of the Hardness Turbidity Color Dissolved gases Hardness Turbidity Color Dissolved gases ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of nitrogen dioxide in atmospheric air causes Corrosion Cancer Asphyxiation Bronchitis Corrosion Cancer Asphyxiation Bronchitis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances. None of these Organic Radioactive Inorganic None of these Organic Radioactive Inorganic ANSWER DOWNLOAD EXAMIANS APP
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