Hydraulic radius is the ratio of ____________________?
Correct answer: B. Flow area to wetted perimeter
- A. Wetted perimeter to flow area
- B. Flow area to wetted perimeter
- C. Flow area to square of wetted perimeter
- D. Square root of flow area to wetted perimeter
Explanation
Hydraulic radius is defined as flow cross-sectional area divided by wetted perimeter, R_h = A/P. Reversing this ratio gives the wetted perimeter per unit area, not hydraulic radius.
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