Environmental Engineering in CE Infective bacteria in water is killed by the __________ process. None of these Disinfection Sterilisation Aeration None of these Disinfection Sterilisation Aeration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. May increase or decrease ; depends on the chemical characteristics of polluted water Remains constant Decreases Increases May increase or decrease ; depends on the chemical characteristics of polluted water Remains constant Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inorganic impurities causing water pollution is Carbohydrates Protein Salts of metals Fats Carbohydrates Protein Salts of metals Fats ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Iron & manganese present in the polluted water is removed by Chlorination only Simple filtration Chemical coagulation Oxidation followed by settling & filtration Chlorination only Simple filtration Chemical coagulation Oxidation followed by settling & filtration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The earth's atmosphere is an envelope of gases present upto a height of about __________ kms. 1000 10 200 2000 1000 10 200 2000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes Undesirable plant growth Foaming Turbidity Odour nuisances Undesirable plant growth Foaming Turbidity Odour nuisances ANSWER DOWNLOAD EXAMIANS APP
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