Question

The Froude number of a hydraulic jump is 5.5. The jump can be classified as a/an
1. undular jump
2. oscillating jump
3. weak jump
4. steady jump

Answer 1

Correct Answer - Option 4 : steady jump

Explanation:

The hydraulic jumps in horizontal rectangular channels are classified into five categories based on Froude number F1 of the supercritical flow as:

Range	Type
1.0 < F1 ≤ 1.7	Undular jump
1.7 < F1 ≤ 2.5	Weak jump
2.5 < F1 ≤ 4.5	Oscillating jump
4.5 < F1 ≤ 9.0	Steady jump
F1 > 9.0	Strong or choppy jump