Waste Water Engineering The effluent of a septic tank is Foul and contains dissolved and suspended solids Fit for discharge into any open drain As good as that from a complete treatment None of these Foul and contains dissolved and suspended solids Fit for discharge into any open drain As good as that from a complete treatment None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In sewage, the solids in mg per litre is 1000 to 1500 100 to 500 1500 to 2000 500 to 1000 1000 to 1500 100 to 500 1500 to 2000 500 to 1000 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For design of sewers, percentage of sewage discharge is assumed 0.85 75 to 80% 65 to 70% 70 to 75% 0.85 75 to 80% 65 to 70% 70 to 75% ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of a sewer is 100 mm, the gradient required for generating self cleansing velocity is 1 in 100 None of these 1 in 120 1 in 60 1 in 100 None of these 1 in 120 1 in 60 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The formula V = (1/n) r2/3 Kutter’s formula Manning’s formula Chezy’s formula Bazin’s formula Kutter’s formula Manning’s formula Chezy’s formula Bazin’s formula ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The normal value of over flow rates for plain primary sedimentation tanks, ranges between 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day 25,000 to 35,000 litres/sqm/day 50,000 to 60,000 litres/sqm/day 40,000 to 50,000 litres/sqm/day 80,000 to 100,000 litres/sqm/day ANSWER DOWNLOAD EXAMIANS APP
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