Waste Water Engineering Acid regression stage of sludge digestion at a temperature 21°C extends over a period of 60 days 15 days 90 days 30 days 60 days 15 days 90 days 30 days 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 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 The ratio of the diameter of a circular section and the side of a square section hydraulically equivalent, is 1.065 1.085 1.095 1.075 1.065 1.085 1.095 1.075 ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following statements regarding septic tanks is wrong? A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level The depth of tank is kept equal to its width The minimum width of septic level is 90 cm A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The outlet invert level is kept 5 to 7.5 cm below the inlet invert level The depth of tank is kept equal to its width The minimum width of septic level is 90 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Large diameter sewers subjected to external pressure alone, are reinforced Near the outer surface of the pipe With elliptical cage Both A and B Near the inner surface of the pipe Near the outer surface of the pipe With elliptical cage Both A and B Near the inner surface of the pipe ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The angle subtended by the surface of sewer water with partial flow, at sewer centre is 120°, the depth of sewerage is 50 cm 40 cm 20 cm 25 cm 50 cm 40 cm 20 cm 25 cm ANSWER DOWNLOAD EXAMIANS APP
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