Environmental Engineering in CE Which of the following processes is involved in the biochemical treatment of sewage effluents? Fermentation Oxidation Reduction Dehydration Fermentation Oxidation Reduction Dehydration ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels. 95 105 75 35 95 105 75 35 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE From pollution control point of view, the maximum permissible concentration of sulphur dioxide in atmospheric air is about __________ ppm. 50 500 5 1 50 500 5 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The concentration of water vapour in troposphere, which depends upon the altitude & temperature varies in the range of zero to __________ percent. 8 12 1 4 8 12 1 4 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Oil and grease present in an emulsified state in waste water discharged from industries can be removed by Skimming off Chlorination Settling out using chemical reagents Biological oxidation Skimming off Chlorination Settling out using chemical reagents Biological oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Main pollutant present in automobile exhaust is CO Hydrocarbons CO₂ NO CO Hydrocarbons CO₂ NO ANSWER DOWNLOAD EXAMIANS APP
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