Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is rolling resistance?
💡 Hint: Think about what happens as tires move over a surface.
Question 2
Easy
How do you convert kg to tons?
💡 Hint: What is 1000 kg in terms of tons?
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 factor influencing rolling resistance?
- Weight of the vehicle
- Weather conditions
- Type of tires
💡 Hint: Consider what affects how tires roll over a surface.
Question 2
Grade resistance decreases when driving downhill.
- True
- False
💡 Hint: Think about the direction of gravitational force.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A vehicle weighs 20 tons and has a rolling resistance of 30 kg per ton. If it travels on a 6% slope, calculate the total tractive effort required.
💡 Hint: Use the formulas for both rolling and grade resistance, then sum them up.
Question 2
If a machine with a maximum rimpull of 9000 kg faces 2000 kg of rolling resistance and 1500 kg of grade resistance, how much effective pull does it have left?
💡 Hint: Calculate total resistance then subtract it from maximum rimpull.
Challenge and get performance evaluation