UNIT-III

3. are made for guiding the stream near the structure.
4. is a sort of low weir constructed at the end of the cistern.
8. outlet on which flexibility is equal to unity.
9. module module which maintains constant discharge.
12. is an irrigation structure constructed across a canal to lower down its water level.
13. is a small structure which admits water from the distributing channel to a water course or field channel.
14. are constructed transverse to the river flow.
15. gauge outlet which use vent pipe for distributing the water to the field.

1. regulate the supplies of the parent channel.
2. structure constructed on an irrigation canal for the purpose of wasting some of its water.
5. defined as the process by which an alluvial river flowing along curves of bend.
6. are those which measure the discharge of the canal.
7. are designed to confine the low water flow in a single channel with a view to miantain suitable depth for navigation.
10. that portion of the fall down stream of the crest wall.
11. ratio between the depth of water level over the crest on the downstream and upstream of the module.