Environmental Engineering in CE COD of raw municipal sewage may be in the range of about __________ mg/litre. 1-2 90-120 1500-2500 5-10 1-2 90-120 1500-2500 5-10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The biological decomposition of organic substances in wastes controlled conditions is called Composting Incineration None of these Biological oxidation Composting Incineration None of these Biological oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is a manmade source of air pollution? Automobile exhaust All of these Forest fire Bacterial action in soil and swamp areas Automobile exhaust All of these Forest fire Bacterial action in soil and swamp areas ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible turbidity in potable water is __________ ppm. 1000 250 10 1 1000 250 10 1 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fluorosis is caused due to the presence of excessive amount of __________ in drinking water. Lead Arsenic Fluoride Mercury Lead Arsenic Fluoride Mercury ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant? Aluminium Mercury Arsenic Lead Aluminium Mercury Arsenic Lead ANSWER DOWNLOAD EXAMIANS APP
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