Waste Water Engineering The moisture content of sludge is reduced from 90% to 80% in a sludge digestion tank. The percentage decrease in the volume of sludge, is 0.05 0.5 0.25 0.1 0.05 0.5 0.25 0.1 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The minimum diameter of a sewer is kept 15 cm 25 cm 10 cm 20 cm 15 cm 25 cm 10 cm 20 cm 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 Nitric acid Sulphuric acid Citric acid Hydrochloric acid Nitric acid Sulphuric acid Citric acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Stone ware pipes are Highly impervious Highly resistant to sulphide corrosion Especially suited to pressure pipes Hydraulically efficient because of their smooth interior surface Highly impervious Highly resistant to sulphide corrosion Especially suited to pressure pipes Hydraulically efficient because of their smooth interior surface ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the length of overland flow from the critical point to the mouth of drain is 13.58 km and difference in level between the critical point and drain mouth is 10 m, the inlet time is 8 hours 6 hours 4 hours 2 hours 8 hours 6 hours 4 hours 2 hours ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Removal of oil and grease from sewage, is known Filtration Screening Skimming None of these Filtration Screening Skimming None of these ANSWER DOWNLOAD EXAMIANS APP
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