Waste Water Engineering In 1000 kg of sewage, the total solids approximate 1 kg to 2.0 kg 0.5 to 1.0 kg 7.5 kg to 10 kg 5 kg to 7.5 kg 1 kg to 2.0 kg 0.5 to 1.0 kg 7.5 kg to 10 kg 5 kg to 7.5 kg ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The grit chambers of sewage treatment plants, are generally cleaned after 12 days 7 days 2 days 14 days 12 days 7 days 2 days 14 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the diameter of a sewer is 150 mm, the gradient required for generating self cleansing velocity, is 1 in 120 1 in 100 None of these 1 in 60 1 in 120 1 in 100 None of these 1 in 60 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In normal conditions, the period for sludge digestion, is 30 days 20 days 60 days 10 days 30 days 20 days 60 days 10 days ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering To test chemical oxygen demand (C.O.D.) of sewage, organic matter is oxidised by potassium dichromate in the presence of Hydrochloric acid Citric acid Nitric acid Sulphuric acid Hydrochloric acid Citric acid Nitric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The asbestos cement sewers are Susceptible to corrosion by sulphuric acid All of these Light in weight Not structurally strong to bear large compressive stress Susceptible to corrosion by sulphuric acid All of these Light in weight Not structurally strong to bear large compressive stress ANSWER DOWNLOAD EXAMIANS APP
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