Waste Water Engineering The most efficient cross-section of sewers in a combined sewerage system is Rectangular New egged Circular Parabolic Rectangular New egged Circular Parabolic ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For treating the sewage of a large city, you will recommend A sedimentation tank and an activated sludge treatment plant Sedimentation tanks with high rate trickling filters A plant consisting of Imhoff tanks with low rate trickling filters None of these A sedimentation tank and an activated sludge treatment plant Sedimentation tanks with high rate trickling filters A plant consisting of Imhoff tanks with low rate trickling filters None of these ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering Drop manholes at the junctions of sewer lines, are provided if Two sewer lines intersect Sewer line runs along a main road Ordinary manhole cannot be built Invert level of a branch sewer is more than 60 cm that of the main sewer Two sewer lines intersect Sewer line runs along a main road Ordinary manhole cannot be built Invert level of a branch sewer is more than 60 cm that of the main sewer ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering For a peak discharge of 0.0157 cumec, with a velocity of 0.9 m/sec, the diameter of the sewer main, is 12 cm 18 cm 15 cm 10 cm 12 cm 18 cm 15 cm 10 cm ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The sewers Must be of adequate size to avoid over flow Must be laid at least 2 to 3 m deep to collect /water from the basements Must flow under gravity ½ to ¾ full All listed here Must be of adequate size to avoid over flow Must be laid at least 2 to 3 m deep to collect /water from the basements Must flow under gravity ½ to ¾ full All listed here ANSWER DOWNLOAD EXAMIANS APP
Waste Water Engineering The reduced levels of the string at the consecutive sight rails A and B are 203.575 m, 203.475 m respectively. If the difference of their R.D.s is 10 m, the gradient of the sewer line is 1 in 100 upward 1 in 503 upward 1 in 500 upward 1 in 100 downward 1 in 100 upward 1 in 503 upward 1 in 500 upward 1 in 100 downward ANSWER DOWNLOAD EXAMIANS APP