Waste Water Engineering Cement concrete sewers are only suitable if non-scouring velocity is between 4.5 to 5.5 m/sec 3.0 to 4.0 m/sec 2.5 to 3.0 m/sec 3.5 to 4.5 m/sec 4.5 to 5.5 m/sec 3.0 to 4.0 m/sec 2.5 to 3.0 m/sec 3.5 to 4.5 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is 100 cm 80 cm 90 cm 50 cm 100 cm 80 cm 90 cm 50 cm 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
Waste Water Engineering In sewers the velocity of flow should not be More than the self-cleansing velocity Less than the self-cleansing velocity Less than 10 m/sec More than 20 m/sec More than the self-cleansing velocity Less than the self-cleansing velocity Less than 10 m/sec More than 20 m/sec ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Fresh sewage is generally Acidic A source of objectionable odour Alkaline Highly decomposed Acidic A source of objectionable odour Alkaline Highly decomposed ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The factor responsible for purification of sewage in river is Dissolved oxygen in water Temperature Hydrology All listed here Dissolved oxygen in water Temperature Hydrology All listed here ANSWER DOWNLOAD EXAMIANS APP
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