Waste Water Engineering In 1000 kg of sewage, the total solids approximate 7.5 kg to 10 kg 1 kg to 2.0 kg 5 kg to 7.5 kg 0.5 to 1.0 kg 7.5 kg to 10 kg 1 kg to 2.0 kg 5 kg to 7.5 kg 0.5 to 1.0 kg ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The digested sludge from septic tanks, is removed after a maximum period of 5 years 3.5 years 4 years 3 years 5 years 3.5 years 4 years 3 years ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The value of Chezy’s constant C = 157.6/(1.81 + K/ ) is used in Kutter’s formula Chezy’s formula Manning’s formula Bazin’s formula Kutter’s formula Chezy’s formula Manning’s formula Bazin’s formula ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is 150 mg/l 100 mg/l 250 mg/l 50 mg/l 150 mg/l 100 mg/l 250 mg/l 50 mg/l ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The design period in years for pumping plants, is 2 to 3 5 to 10 1 3 to 5 2 to 3 5 to 10 1 3 to 5 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is 0.35 m/sec 0.40 m/sec 0.30 m/sec 0.45 m/sec 0.35 m/sec 0.40 m/sec 0.30 m/sec 0.45 m/sec ANSWER DOWNLOAD EXAMIANS APP
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