Environmental Engineering in CE Which is the best and the most effective method for the removal of organic contaminant present in the polluted water in very small quantity (say < 200 mg/litre)? Biological oxidation pond Chemical coagulation Lagooning Activated carbon adsorption Biological oxidation pond Chemical coagulation Lagooning Activated carbon adsorption ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present in the polluted water is removed by Simple filtration Oxidation followed by settling & filtration Chemical coagulation Chlorination only Simple filtration Oxidation followed by settling & filtration Chemical coagulation Chlorination only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dissolved oxygen content in river water is around __________ ppm. 5 250 500 100 5 250 500 100 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE White smoke coming out of the chimney of a furnace indicates the use of Low excess air Very high excess air Gaseous fuel in the furnace Liquid fuel in the furnace Low excess air Very high excess air Gaseous fuel in the furnace Liquid fuel in the furnace ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most severe air pollutant? CO SO₂ NOx Hydrocarbons CO SO₂ NOx Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Particles having diameter greater than 75 μm (micrometer = 10-6 mm) are called Dust Powder Smoke Grit Dust Powder Smoke Grit ANSWER DOWNLOAD EXAMIANS APP
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