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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define rolling resistance.
💡 Hint: Think about the type of surfaces involved.
Question 2
Easy
What unit measures rolling resistance?
💡 Hint: Refer to the context of measurement in the lecture.
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 primarily defines rolling resistance?
- The opposition to motion on a surface
- The support capacity of the surface
- The friction experienced by tires
💡 Hint: Think about what surfaces interact with wheels.
Question 2
True or False: Higher tire pressure always decreases rolling resistance.
- True
- False
💡 Hint: Consider how tires perform in different environments.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the total tractive effort for a vehicle weighing 25 tons if the rolling resistance is 45 kg per ton and if the tire penetration is 5 cm.
💡 Hint: Break it down into two parts: normal rolling resistance and penetration components.
Question 2
Discuss the economic implications of maintaining roads for rolling resistance—how does it affect project budgets?
💡 Hint: Think about the long-term operational costs and savings.
Challenge and get performance evaluation