Environmental Engineering in CE Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? Smog & ozone Hydrogen fluoride & nitrogen oxides Carbon monoxide Sulphur dioxide & spray of weed killers Smog & ozone Hydrogen fluoride & nitrogen oxides Carbon monoxide Sulphur dioxide & spray of weed killers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of nitrates in water in excess of 50 ppm causes Gastroentetitis Tooth decay Asphyxiation Mathenoglobenemia Gastroentetitis Tooth decay Asphyxiation Mathenoglobenemia 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. 5 1 20 10 5 1 20 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Higher concentration of nitrogen dioxide in atmospheric air causes Bronchitis Asphyxiation Cancer Corrosion Bronchitis Asphyxiation Cancer Corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A man exposed to excessive noise level in the working environment may suffer from All of these Hearing loss Nervousness & fatigue Rupture of ear drum All of these Hearing loss Nervousness & fatigue Rupture of ear drum ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of chemical coagulant added for treatment of polluted water __________ with increase in temperature of the polluted water to be treated. May increase or decrease ; depends on the chemical characteristics of polluted water Decreases Increases Remains constant May increase or decrease ; depends on the chemical characteristics of polluted water Decreases Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
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