Environmental Engineering in CE Oil and grease present in an emulsified state in waste water discharged from industries can be removed by Chlorination Biological oxidation Skimming off Settling out using chemical reagents Chlorination Biological oxidation Skimming off Settling out using chemical reagents ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The destruction of water-borne pathogens is termed as disinfection of water. Which of the following is a water disinfectant? Benzene hexachloride Alkyl benzene sulphonate (ABS) Chlorine Alkalis Benzene hexachloride Alkyl benzene sulphonate (ABS) Chlorine Alkalis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Water effluent generated in printing industry is decolourised by Adsorption Ion exchange technique Electrolytic decomposition Reverse osmosis Adsorption Ion exchange technique Electrolytic decomposition Reverse osmosis 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 Activated carbon adsorption Biological oxidation pond Chemical coagulation Lagooning Activated carbon adsorption Biological oxidation pond Chemical coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following processes is involved in the biochemical treatment of sewage effluents? Dehydration Reduction Fermentation Oxidation Dehydration Reduction Fermentation Oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre. 42 2 1050 332 42 2 1050 332 ANSWER DOWNLOAD EXAMIANS APP
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