engineering recuitment MP Vyapam Sub Engineer Mock Test 2024 Fluid Mechanics Open Channel Flow Weirs and Notches
In a submerged rectangular weir, an arrangement for aeration of nappe is essential for which of the following reasons?
1
For having a constant head-discharge relation independent of time
2
For preventing submergence of weir
3
For maintaining water quality
4
For having highest value of co-efficient of discharge