Home » MCQs » Fluid Mechanics MCQs » Notches and Weirs MCQs

What effect does increase approach velocity have on discharge over a triangular weir?

8. What effect does increase approach velocity have on discharge over a triangular weir?

1. It increases the discharge
2. It changes the shape of the velocity profile
3. It does not affect the discharge
4. It decreases the discharge

Answer: A) It increases the discharge

Explanation:

As approach velocity increases, kinetic energy increases, resulting in increasing discharge over the triangle weir. The flow rate measurement is influenced by the kinetic energy of the approaching flow.