Saved Bookmarks
| 1. |
The kind of canal section involved in irrigation work is __________(a) canal high in embankment in partly in excavation(b) canal partly in excavation and partly in embankment(c) canal less in embankment(d) canal half in excavation |
|
Answer» Right answer is (b) canal partly in excavation and partly in embankment Explanation: There are generally three kinds of canal sections involved in irrigation works and they are:- • Canal fully in excavation • Canal fully in embankment • Canal partly in excavation and partly in embankment Generally, the volume of earthwork for irrigational canals is calculated by the Trapezoidal formula which is also called End-area formula or the Mid-sectional formula. Generally, the side slope in cutting is kept as 1:1(H:V) and in banking 1.5:1(H:V) or 2:1(H:V) according to soil condition. |
|