Waste Water Engineering If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by Kutter Chezy Bazin Manning Kutter Chezy Bazin Manning ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering A manhole is classified as shallow if its depth is between 0.5 to 0.7 m 0.4 to 0.5 m 0.7 to 0.9 m 0.9 to 1.20 m 0.5 to 0.7 m 0.4 to 0.5 m 0.7 to 0.9 m 0.9 to 1.20 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Bio-chemical oxygen demand (BOD) for the first 20 days in generally referred to Initial demand All of these First stage demand Carbonaceous demand Initial demand All of these First stage demand Carbonaceous demand ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If a paper moistened with lead acetate for five minutes when placed in manhole turns black. The sewer certainly contains Methane Oxygen Carbon dioxide Hydrogen sulphide Methane Oxygen Carbon dioxide Hydrogen sulphide ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering In olden days the type of section adopted in trunk and out fall sewers was Horse shoe shaped Parabolic shaped Egg shaped Circular shaped Horse shoe shaped Parabolic shaped Egg shaped Circular shaped ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If 2% solution of a sewage sample is incubated for 5 days at 20°C and depletion of oxygen was found to be 5 ppm, B.O.D. of the sewage is None of these 200 ppm 250 ppm 225 ppm None of these 200 ppm 250 ppm 225 ppm ANSWER DOWNLOAD EXAMIANS APP
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