Environmental Engineering in CE Particulates (< 1μm size) remaining suspended in air indefinitely and transported by wind currents are called Smoke Mists Aerosols Fumes Smoke Mists Aerosols Fumes ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Inhalation of silica dust by human being during hand drilling in mica mining, lead & zinc mining, silica refractory manufacture and in foundaries causes Tuberculosis Asphyxiation (suffocation) All of these Shortness of breath Tuberculosis Asphyxiation (suffocation) All of these Shortness of breath ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The most commonly used chemical coagulant in water treatment is Ferrous sulphate Lime Hydrazine Alum Ferrous sulphate Lime Hydrazine Alum 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
Environmental Engineering in CE Maximum permissible turbidity in potable water is __________ ppm. 250 1 1000 10 250 1 1000 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes Persistent foam Depletion of dissolved oxygen Explosion hazards Fire hazards Persistent foam Depletion of dissolved oxygen Explosion hazards Fire hazards ANSWER DOWNLOAD EXAMIANS APP
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