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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does CBR stand for?
💡 Hint: Think about the test's full name.
Question 2
Easy
What is the diameter of the standard plunger used in the CBR test?
💡 Hint: Recall the measurement of the test equipment.
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 CBR test?
- To measure soil moisture
- To evaluate strength of subgrade soil
- To classify soil type
💡 Hint: Think about how soil impacts pavement.
Question 2
True or False: The CBR value increases with deeper penetration.
- True
- False
💡 Hint: Focus on the expected behavior of soil during testing.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a soil has a CBR value of 50% at 2.5 mm and a CBR value of 70% at 5 mm, should this soil be considered robust enough for roadway support? Discuss the implications if the values were reversed.
💡 Hint: Consider the characteristics of soil strength and implications for road durability.
Question 2
Describe a scenario where the CBR value might dramatically change. What environmental or physical factors could influence this result?
💡 Hint: Reflect on the effects of weather or mistreatment of the soil during the CBR test.
Challenge and get performance evaluation