In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

In a broad-crested weir, the discharge is maximum if the head of water

1.	In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.
A.	equal to
B.	one-third
C.	two-third
D.	three-fourth
Answer» D. three-fourth