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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?
- It increases the discharge
- It changes the shape of the velocity profile
- It does not affect the discharge
- 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.