Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Sulphuric acid Copper sulphate Lime Sodium permanganate Sulphuric acid Copper sulphate Lime Sodium permanganate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following compounds is widely used for algae control? Copper sulphate Sodium chloride Calcium chloride Sodium sulphate Copper sulphate Sodium chloride Calcium chloride Sodium sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The most common cause of acidity in water is Hydrogen Carbon dioxide Nitrogen Oxygen Hydrogen Carbon dioxide Nitrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The characteristics of fresh and septic sewage respectively are Alkaline and acidic Acidic and alkaline Both acidic Both alkaline Alkaline and acidic Acidic and alkaline Both acidic Both alkaline ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For normal sludge, the value of sludge index for Indian conditions is 150 to 350 50 to 150 350 to 500 0 to 50 150 to 350 50 to 150 350 to 500 0 to 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pathogens can be killed by None of these Nitrification Chlorination Oxidation None of these Nitrification Chlorination Oxidation ANSWER DOWNLOAD EXAMIANS APP
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