Environmental Engineering in CE Presence of nitrates in water in excess of 50 ppm causes Gastroentetitis Mathenoglobenemia Tooth decay Asphyxiation Gastroentetitis Mathenoglobenemia Tooth decay Asphyxiation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Reingleman chart is used for the evaluation of __________ pollution. Radioactive Air Water Noise Radioactive Air Water Noise ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The commonest form of iron & manganese found in ground water as pollutant is in the form of their Chlorides Sulphides Bi-carbonates Carbonates Chlorides Sulphides Bi-carbonates Carbonates ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream? Sedimentation tank Circular clarifier Chemical coagulation Mechanical flocculation Sedimentation tank Circular clarifier Chemical coagulation Mechanical flocculation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Corrosion in boilers can be prevented by Deaeration of feed water Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion Enhancing pH of feed water by adding alkali All of these Deaeration of feed water Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion Enhancing pH of feed water by adding alkali All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following pollutants, if present in atmosphere is detectable by its odour? SO₂ CO₂ NO₂ CO SO₂ CO₂ NO₂ CO ANSWER DOWNLOAD EXAMIANS APP
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