Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 500 to 600 50 to 60 1400 to 1500 100 to 150 500 to 600 50 to 60 1400 to 1500 100 to 150 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following compounds is widely used for algae control? Sodium chloride Copper sulphate Sodium sulphate Calcium chloride Sodium chloride Copper sulphate Sodium sulphate Calcium chloride ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is Same Smaller None of these Larger Same Smaller None of these Larger ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The working conditions in imhoff tanks are anaerobic in lower compartment and aerobic in upper compartment Aerobic in lower compartment and anaerobic in upper compartment Anaerobic only Aerobic only anaerobic in lower compartment and aerobic in upper compartment Aerobic in lower compartment and anaerobic in upper compartment Anaerobic only Aerobic only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Laying of sewers is usually done with the help of A Theodolite Sight rails and boning rods A compass A plane table A Theodolite Sight rails and boning rods A compass A plane table ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The ratio of 5 day BOD to ultimate BOD is about 43894 1 43864 43833 43894 1 43864 43833 ANSWER DOWNLOAD EXAMIANS APP
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