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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define φ-Index in hydrology.
💡 Hint: Think about how water movement into the soil is measured.
Question 2
Easy
Explain the application of the φ-Index in the Rational Method.
💡 Hint: Consider how runoff relates to infiltration rates.
Practice 1 more question and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does the φ-Index measure?
- Rate of evaporation
- Average infiltration rate
- Rate of irrigation
💡 Hint: Think about its role in hydrology.
Question 2
True or False: The φ-Index is variable throughout a storm event.
- True
- False
💡 Hint: Consider how we use it in calculations.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A region experiences varying φ-Index values during different seasons (winter 10mm/hr, summer 25mm/hr). If a storm delivers 50mm of rain, calculate how much runoff occurs in both seasons if the rainfall intensity is 15mm/hr.
💡 Hint: Calculate the difference between rainfall and φ-Index for both cases.
Question 2
During a storm, if the φ-Index is 12mm/hr and rainfall is 36mm/hr for three hours, determine the total runoff.
💡 Hint: Keep track of time and the difference in rates.
Challenge and get performance evaluation