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Hydraulic depth is the ratio of
  • a)
    wetted area to wetted perimeter
  • b)
    wetted area to top width
  • c)
    wetted area to bottom width
  • d)
    wetted perimeter to top width
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Hydraulic depth is the ratio ofa)wetted area to wetted perimeterb)wett...
Hydraulic Depth in Open Channel Flow

Hydraulic depth is an important parameter in open channel flow analysis. It is defined as the ratio of the cross-sectional area of flow to the wetted perimeter. It is represented by the symbol "D" and is expressed in units of length.

Formula for Hydraulic Depth

The formula for hydraulic depth is as follows:

D = A / P

where,
D = hydraulic depth
A = cross-sectional area of flow
P = wetted perimeter

Explanation of Options

Option A: Wetted area to wetted perimeter
This ratio represents the cross-sectional area of flow to the length of the wetted perimeter. It is not the definition of hydraulic depth.

Option B: Wetted area to top width
This ratio represents the cross-sectional area of flow to the top width of the channel. It is the definition of hydraulic depth.

Option C: Wetted area to bottom width
This ratio represents the cross-sectional area of flow to the bottom width of the channel. It is not the definition of hydraulic depth.

Option D: Wetted perimeter to top width
This ratio represents the length of the wetted perimeter to the top width of the channel. It is not the definition of hydraulic depth.

Conclusion

Therefore, the correct option is B, which represents the ratio of the cross-sectional area of flow to the top width of the channel. This is the definition of hydraulic depth, which is an important parameter in open channel flow analysis.
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Community Answer
Hydraulic depth is the ratio ofa)wetted area to wetted perimeterb)wett...
B is not correct
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Hydraulic depth is the ratio ofa)wetted area to wetted perimeterb)wetted area to top widthc)wetted area to bottom widthd)wetted perimeter to top widthCorrect answer is option 'B'. Can you explain this answer?
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