Environmental Engineering in CE Phenolic water generated in coke ovens & by-product plant attached to an integrated steel plant containing phenol in concentration of less than 100 mg/litre can be removed by None of these Chlorination Chemical coagulation Treating in biological oxygen pond None of these Chlorination Chemical coagulation Treating in biological oxygen pond ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagoons used for purification of polluted water Use micro-organisms/bacteria in presence of dissolved oxygen Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds All of these Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre Use micro-organisms/bacteria in presence of dissolved oxygen Are large shallow artificial lakes also known as clarification lakes, maturation ponds or oxidation ponds All of these Gives an excellent final effluent (with 3 to 4 lagoons arranged in series) having suspended solid < 1 mg/litre and BOD = 3.8 mg/litre ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Most of the bacteria in sewage are Saprophytic None of these Parasitic Anerobic Saprophytic None of these Parasitic Anerobic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Disinfection of water is done to remove Color Bad taste Bacteria Foul odour Color Bad taste Bacteria Foul odour ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust causes a disease called Silicosis Bronchitis None of these Pneumoconiosis Silicosis Bronchitis None of these Pneumoconiosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What are the methods of treatment & disposal of radioactive wastes? Fixing into a solid mass with cement and sinking deep in the sea Biological methods & adsorption in ion exchange materials All of these Evaporation & chemical precipitation Fixing into a solid mass with cement and sinking deep in the sea Biological methods & adsorption in ion exchange materials All of these Evaporation & chemical precipitation ANSWER DOWNLOAD EXAMIANS APP
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