Waste Water Engineering Lead acetate test in sewer manhole is done to test the presence of Carbondioxide gas Diesel vapours Hydrogen sulphide Methane gas Carbondioxide gas Diesel vapours Hydrogen sulphide Methane gas ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For the survival of fish in a river stream, the minimum dissolved oxygen is prescribed 4 ppm 5 ppm 10 ppm 3 ppm 4 ppm 5 ppm 10 ppm 3 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Which one of the following statements regarding septic tanks is wrong? The minimum width of septic level is 90 cm The outlet invert level is kept 5 to 7.5 cm below the inlet invert level A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The depth of tank is kept equal to its width The minimum width of septic level is 90 cm The outlet invert level is kept 5 to 7.5 cm below the inlet invert level A gap of 7.5 cm between the bottom of the covering slab and the top level of scum is provided The depth of tank is kept equal to its width 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 60 1 in 100 None of these 1 in 120 1 in 60 1 in 100 None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The most widely used pump for lifting sewage is Pneumatic ejector Air pressure pump Centrifugal pump Reciprocating pump Pneumatic ejector Air pressure pump Centrifugal pump Reciprocating pump ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In a sludge digestion tank if the moisture content of sludge V1 litres is reduced from p1 % to p2 % the volume V2 is [(100 + P2)/(100 – P1)] V1 [(100 + P1)/(100 – P2)] V1 [(100 – P1)/(100 + P2)] V1 [(100 – P1)/(100 – P2)] V1 [(100 + P2)/(100 – P1)] V1 [(100 + P1)/(100 – P2)] V1 [(100 – P1)/(100 + P2)] V1 [(100 – P1)/(100 – P2)] V1 ANSWER DOWNLOAD EXAMIANS APP
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