Waste Water Engineering A manhole is classified as shallow if its depth is between 0.7 to 0.9 m 0.5 to 0.7 m 0.9 to 1.20 m 0.4 to 0.5 m 0.7 to 0.9 m 0.5 to 0.7 m 0.9 to 1.20 m 0.4 to 0.5 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering With self cleansing velocity in sewers Both silting and scouring occur at bottom Scouring occurs at bottom Neither silting nor scouring occurs at bottom Silting occurs at bottom Both silting and scouring occur at bottom Scouring occurs at bottom Neither silting nor scouring occurs at bottom Silting occurs at bottom ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is 100 ppm 150 ppm 200 ppm 50 ppm 100 ppm 150 ppm 200 ppm 50 ppm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The maximum depth of sedimentation tanks, is kept 4 m 3.5 m 3 m 4.5 m 4 m 3.5 m 3 m 4.5 m ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewer pipes All listed here Carry sewage as gravity conduits Are designed for generating self-cleansing velocities at different discharge Should resist the wear and tear caused due to abrasion All listed here Carry sewage as gravity conduits Are designed for generating self-cleansing velocities at different discharge Should resist the wear and tear caused due to abrasion ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The detention time (t) of a settling tank, may be defined as the time required for The flow of sewage to fill the tank None of these A particle to travel along its length A particle to travel from top surface to bottom sludge zone The flow of sewage to fill the tank None of these A particle to travel along its length A particle to travel from top surface to bottom sludge zone ANSWER DOWNLOAD EXAMIANS APP
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