Environmental Engineering in CE Inhalation of lead compounds present in the automobile exhausts (using leaded petrol) causes All of these Anaemia Nervous system disorder Blood poisoning All of these Anaemia Nervous system disorder Blood poisoning ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants is absent in the emissions from a fertiliser plant ? CO NO₂ NH₃ SO₂ & SO₃ CO NO₂ NH₃ SO₂ & SO₃ ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Threshold Limit Value (TLV) is the maximum allowable concentration (i.e. safe limit) of pollutants in air. Safe limit for SO₂ in air is __________ ppm. 5 500 2000 1000 5 500 2000 1000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Corrosion in boilers can be prevented by Deaeration of feed water Enhancing pH of feed water by adding alkali All of these Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion Deaeration of feed water Enhancing pH of feed water by adding alkali All of these Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage? Hydrogen fluoride & nitrogen oxides Sulphur dioxide & spray of weed killers Carbon monoxide Smog & ozone Hydrogen fluoride & nitrogen oxides Sulphur dioxide & spray of weed killers Carbon monoxide Smog & ozone ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE What are the methods of treatment & disposal of radioactive wastes? All of these Fixing into a solid mass with cement and sinking deep in the sea Evaporation & chemical precipitation Biological methods & adsorption in ion exchange materials All of these Fixing into a solid mass with cement and sinking deep in the sea Evaporation & chemical precipitation Biological methods & adsorption in ion exchange materials ANSWER DOWNLOAD EXAMIANS APP
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