Environmental Engineering in CE Which of the following is a manmade source of air pollution? Bacterial action in soil and swamp areas Automobile exhaust Forest fire All of these Bacterial action in soil and swamp areas Automobile exhaust Forest fire All of these 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 5 1 500 50 5 1 500 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The weakest sound that can be heard by a person in a quiet environment is equivalent to __________ decibel. 1 10 5 20 1 10 5 20 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A shallow pond in which the sewage is retained and biologically treated is called Imhoff tank Skimming tank Lagoon Oxidation Imhoff tank Skimming tank Lagoon Oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The Killer gas which caused Bhopal gas tragedy in 1984 was Carbon monoxide Phosgene Methyl iso-cynate (MIC) Sulphur dioxide Carbon monoxide Phosgene Methyl iso-cynate (MIC) Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace. Pulverised coal as fuel Large quantity of excess combustion air Low amount of excess combustion air Hydrocarbon fuel Pulverised coal as fuel Large quantity of excess combustion air Low amount of excess combustion air Hydrocarbon fuel ANSWER DOWNLOAD EXAMIANS APP
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