21.2.4.1 - Test Procedure
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Practice Questions
Test your understanding with targeted questions
What does CBR stand for?
💡 Hint: Think about the test's full name.
What is the diameter of the standard plunger used in the CBR test?
💡 Hint: Recall the measurement of the test equipment.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary purpose of the CBR test?
💡 Hint: Think about how soil impacts pavement.
True or False: The CBR value increases with deeper penetration.
💡 Hint: Focus on the expected behavior of soil during testing.
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Challenge Problems
Push your limits with advanced challenges
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.
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.
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