Environmental Engineering in CE Fluorosis (a bone disease) is caused by the presence of high concentration of __________ in atmospheric air. Hydrogen flouride Nitrogen dioxide Hydrocarbons Hydrogen sulphides Hydrogen flouride Nitrogen dioxide Hydrocarbons Hydrogen sulphides ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following plants does not emit appreciable amount of SO₂ in atmosphere? Petroleum refinery Nitric acid plant Thermal power plant Sulphuric acid plant Petroleum refinery Nitric acid plant Thermal power plant Sulphuric acid plant ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause Non biodegradable foam Undesirable plant growth Explosion Corrosion Non biodegradable foam Undesirable plant growth Explosion Corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a source of ozone emission in the atmosphere? Xerox machines Refrigerators Dermatological photo-therapy equipments High voltage electrical equipments Xerox machines Refrigerators Dermatological photo-therapy equipments High voltage electrical equipments 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. 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 Pulverised coal as fuel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Radioactive substances present in the polluted water stream can be removed by Adsorption in ion exchange materials None of these Biological oxygen treatment Coagulation and filtration Adsorption in ion exchange materials None of these Biological oxygen treatment Coagulation and filtration ANSWER DOWNLOAD EXAMIANS APP
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