Environmental Engineering in CE Soluble silica present in boiler feed water can be removed by Preheating it Anion exchanger Filtration Coagulation Preheating it Anion exchanger Filtration Coagulation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Fresh sewage is __________ in nature. Alkaline Highly acidic Neutral Acidic Alkaline Highly acidic Neutral Acidic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause Corrosion Undesirable plant growth Explosion Non biodegradable foam Corrosion Undesirable plant growth Explosion Non biodegradable foam ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The amount of coagulant needed for coagulation of water increases with(i) Increase in turbidity of water(ii) Decrease in turbidity of water(iii) Increase in temperature of water(iv) Decrease in temperature of waterThe correct answer is (i) and (ii) (ii) and (iii) (i)and(iv) (ii) and (iv) (i) and (ii) (ii) and (iii) (i)and(iv) (ii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sulphur dioxide present in the industrial chimney exhaust gases causes Reduction in plant's productivity owing to acid rain Respiratory & lung disease Corrosion of building materials All of these Reduction in plant's productivity owing to acid rain Respiratory & lung disease Corrosion of building materials All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is not a natural source of air pollution? Biological decay of vegetable matter Volcanic eruptions and lightening discharges Photochemical oxidation of organic matter None of these Biological decay of vegetable matter Volcanic eruptions and lightening discharges Photochemical oxidation of organic matter None of these ANSWER DOWNLOAD EXAMIANS APP
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