Environmental Engineering in CE The pH value of potable water should be between 6.5 to 8 4 to 5 1 to 1.5 13 to 14 6.5 to 8 4 to 5 1 to 1.5 13 to 14 ANSWER DOWNLOAD EXAMIANS APP
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 Chemical coagulation Chlorination None of these Treating in biological oxygen pond Chemical coagulation Chlorination None of these Treating in biological oxygen pond ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which is the most practical and economical method for removal of suspended solid matter from polluted water? Sedimentation Chlorination Biological oxidation Skimming off Sedimentation Chlorination Biological oxidation Skimming off ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Noise pollution level in a chemical plant is expressed in Decibel Roentgen None of these Hertz Decibel Roentgen None of these Hertz 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 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)? Activated carbon adsorption Chemical coagulation Lagooning Biological oxidation pond Activated carbon adsorption Chemical coagulation Lagooning Biological oxidation pond ANSWER DOWNLOAD EXAMIANS APP
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