Removal of sewage by a network of underground pipelines or sewers with water :
AConservancy system
BWater carriage system
CWaste water system
DOne pipe system
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Related Questions:
It is a structure in which the canal flows over the drainage:
Which dams are made of locally available soils and gravels ?
Non-rigid dams example:
When the bed level of canal is higher than the highest floor level (HFL) of the drainage, then the cross drainage work is said to be
Gallery is a: