Drop manholes at the junctions of sewer lines, are provided if________________?
During purification process of sewage the gas given off, is________________?
The sewerage system originates from__________________?
In septic tanks, decomposition of organic bacteria, is done by_____________________?
The sewage is pumped up_______________?
Which one of the following tests is used for testing sewer pipes ?
The non-clog pump which permits solid matter to pass out with the liquid sewage, is________________?
When drainage to sewage ratio is 20, the peak dry weather flow is_______________?
Flocculated particles do not change their___________________?
For providing an Indian type W.C., the R.C.C. slabs in the toilet portion__________________?