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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define effective stress.
💡 Hint: What is the formula representing effective stress?
Question 2
Easy
What happens to effective stress when pore water pressure increases?
💡 Hint: Consider the relationship between the components in effective stress calculation.
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 formula for calculating effective stress?
- A) C3' = C3 + u
- B) C3' = C3 - u
- C) C3' = u - C3
💡 Hint: Remember the definition of effective stress.
Question 2
True or False: A decrease in pore water pressure always results in an increase in effective stress.
- True
- False
💡 Hint: Consider how the components of effective stress interact.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A soil layer experiences a total stress of 300 kPa at a depth of 5 m. Pore water pressure in this layer is measured at 100 kPa. Calculate the effective stress.at this depth and explain its significance.
💡 Hint: Use the effective stress formula.
Question 2
In a case of quick sand conditions observed at a construction site, the critical hydraulic gradient for the soil was determined to be 1. If the upward pore water pressure in the soil layer was 110 kPa, what was the total stress causing the quick sand condition to occur?
💡 Hint: Reflect on the definition of critical hydraulic gradient.
Challenge and get performance evaluation