Environmental Engineering in CE The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of __________ of water. Biological oxygen demand Vapor pressure Dissolved oxygen content All of these Biological oxygen demand Vapor pressure Dissolved oxygen content All of these 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 Radioactive Organic Inorganic None of these Radioactive Organic Inorganic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following processes is involved in the biochemical treatment of sewage effluents? Fermentation Oxidation Dehydration Reduction Fermentation Oxidation Dehydration Reduction ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of iron and manganese in water causes None of these Reduction in its dissolved oxygen content Discoloration of bathroom fixtures Temporary hardness None of these Reduction in its dissolved oxygen content Discoloration of bathroom fixtures Temporary hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Cation exchanger Coagulation Chlorine Irradiation of water by ultraviolet light Cation exchanger Coagulation Chlorine Irradiation of water by ultraviolet light ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? Ra-226 Sr-90 I-131 Au-198 Ra-226 Sr-90 I-131 Au-198 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS