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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the radius of relative stiffness?
💡 Hint: Think of it as a measure of how stiff the slab is compared to what lies underneath it.
Question 2
Easy
What role does the modulus of elasticity (E) play?
💡 Hint: Higher values typically indicate stiffer materials.
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 does the radius of relative stiffness help determine in pavement design?
- Thickness only
- Strength of sub-grade
- Performance of the slab
💡 Hint: Think about what helps sustain the slab during load applications.
Question 2
True or False: A higher modulus of elasticity indicates a less capable material.
- True
- False
💡 Hint: Consider how elasticity relates to strength.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a cement slab with a thickness of 25 cm, calculate the radius of relative stiffness if the modulus of elasticity is 3.5 x 10^5 kg/cm2, K is 3 kg/cm3, and µ is 0.2.
💡 Hint: Be careful with K and the Poisson’s ratio!
Question 2
Critique the design of a slab with low stiffness and identify three possible design changes to improve its performance.
💡 Hint: Reflect on what changes typically strengthen structures.
Challenge and get performance evaluation