Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the φ-Index signify?
💡 Hint: Think of the relationship between rainfall and water that flows over the surface.
Question 2
Easy
How is the φ-Index calculated?
💡 Hint: Focus on the total rainfall and runoff values.
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
What is the primary purpose of the φ-Index?
- To calculate total rainfall
- To evaluate soil texture
- To determine runoff potential
💡 Hint: Remember its relationship with rainfall and surface runoff.
Question 2
Is the φ-Index dependent on initial soil moisture content?
- True
- False
💡 Hint: Consider how wet soils behave differently than dry soils.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A rainfall event produces 120 mm of rain and results in 40 mm of runoff over a duration of 3 hours. Calculate the φ-Index, then discuss how varying rainfall intensities might impact this value.
💡 Hint: Focus on applying the φ formula first, then analyze intensity impacts.
Question 2
Imagine a city that has an average φ-Index of 15 mm/hr. Predict how changes in land use due to increased impervious surfaces might affect this value and potential flooding risks.
💡 Hint: Consider urban development impacts on water absorption during rainfall.
Challenge and get performance evaluation