Environmental Engineering The rate of Alteration of pressure filters is Equal to that of slow sand filters Greater than that of rapid sand filters In between the filtration rate of slow sand filters and rapid sand filters Less than that of slow sand filters Equal to that of slow sand filters Greater than that of rapid sand filters In between the filtration rate of slow sand filters and rapid sand filters Less than that of slow sand filters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the Hardness in water Turbidity in water Residual chlorine in water Dissolved oxygen in water Hardness in water Turbidity in water Residual chlorine in water Dissolved oxygen in water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following compounds is widely used for algae control? Sodium chloride Copper sulphate Calcium chloride Sodium sulphate Sodium chloride Copper sulphate Calcium chloride Sodium sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In lime-soda process Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Only noncarbonated hardness is removed Only carbonate hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness Lime reduces the non-carbonate hardness and soda-ash removes the carbonate hardness Only noncarbonated hardness is removed Only carbonate hardness is removed Lime reduces the carbonate hardness and soda-ash removes the non-carbonate hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following retards the self purification of stream? Higher temperature Satisfying oxygen demand Sunlight None of these Higher temperature Satisfying oxygen demand Sunlight None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 50 to 60 100 to 150 1400 to 1500 500 to 600 50 to 60 100 to 150 1400 to 1500 500 to 600 ANSWER DOWNLOAD EXAMIANS APP
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