Environmental Engineering in CE Which of the following pollutants is not emitted during volcanic eruptions? H₂S SO₂ CO Hydrocarbons H₂S SO₂ CO Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The term Biological Oxygen Demand (BOD) is used in relation to Industrial effluents Potable water Cooling water Distilled water Industrial effluents Potable water Cooling water Distilled water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most widely used disinfectant in water treatment? Cation exchanger Chlorine Coagulation Irradiation of water by ultraviolet light Cation exchanger Chlorine Coagulation Irradiation of water by ultraviolet light ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In sewage treatment, the detention period allowed for oxidation ponds ranges from __________ weeks. 1 to 2 15 to 20 4 to 5 9 to 10 1 to 2 15 to 20 4 to 5 9 to 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutant present in automobile exhaust is CO₂ CO Hydrocarbons NO CO₂ CO Hydrocarbons NO ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrogen in high concentration in contaminated air reduces partial pressure of oxygen in lungs, thereby causing asphyxia (suffocation) leading to death from oxygen deficiency. Concentration of N₂ in contaminated air at which it acts as a natural asphyxant is ≥ __________ percent. 92 88 84 80 92 88 84 80 ANSWER DOWNLOAD EXAMIANS APP
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