Practice Selection of Appropriate Index - 31.4 | 31. Infiltration Indices | Hydrology & Water Resources Engineering - Vol 2
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31.4 - Selection of Appropriate Index

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What index should be used if both rainfall and runoff data are available?

💡 Hint: Think about which index relies directly on runoff and rainfall data.

Question 2

Easy

Name an infiltration index that considers initial losses.

💡 Hint: Remember the index that modifies the φ-index for accurate infiltration measures.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

Which index is easier to apply if both runoff and rainfall data are available?

  • φ-index
  • W-index
  • W min-index

💡 Hint: Think about which index does not require additional information.

Question 2

True or False: The W-index includes initial losses in its calculation.

  • True
  • False

💡 Hint: Recall what adjustments the W-index makes compared to the φ-index.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A study area in an urban environment has recorded a total rainfall of 100 mm with a direct runoff of 60 mm. If initial losses are estimated to be 15 mm, calculate both the φ-index and W-index.

💡 Hint: Ensure you understand the formulas for both indices and remember to define `t`.

Question 2

Given a short-duration storm produces heavy runoff in a basin with mixed soils, discuss why the selection of the W min-index is critical for runoff assessment in this situation. What would the consequences be of using the φ-index instead?

💡 Hint: Think about how each index responds differently to storm events.

Challenge and get performance evaluation