Environmental Engineering in CE Which is the most widely used coagulant for the treatment of turbid water? Alum (aluminium sulphate) Sodium aluminate Lime Ferric chloride Alum (aluminium sulphate) Sodium aluminate Lime Ferric chloride ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The lowest layer of atmosphere is known as the None of these Stratosphere Troposphere Ionosphere None of these Stratosphere Troposphere Ionosphere ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE High concentration of carcinogenic hydrocarbon pollutants in atmospheric air causes Silicosis Reduced crop yield Respiratory disease (e.g., asthma) Cancer Silicosis Reduced crop yield Respiratory disease (e.g., asthma) Cancer ANSWER DOWNLOAD EXAMIANS APP
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)? Lagooning Chemical coagulation Activated carbon adsorption Biological oxidation pond Lagooning Chemical coagulation Activated carbon adsorption Biological oxidation pond ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most severe air pollutant? SO₂ NOx CO Hydrocarbons SO₂ NOx CO Hydrocarbons 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. 5 1000 500 10000 5 1000 500 10000 ANSWER DOWNLOAD EXAMIANS APP
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