Calculate the discharge over rectangular Weir of 3 metres length under the head of 400mm.Use Francis formula.

Calculate the discharge over rectangular Weir of 3 metres length under

1.	Calculate the discharge over rectangular Weir of 3 metres length under the head of 400mm.Use Francis formula.
A.	1.268 m<sup>3</sup>/s
B.	1.396 m<sup>3</sup>/s
C.	1.475 m<sup>3</sup>/s
D.	1.528 m<sup>3</sup>/s
Answer» C. 1.475 m<sup>3</sup>/s