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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define the term 'swell factor'.
💡 Hint: Think of it as a measure of how much the material expands when disturbed.
Question 2
Easy
What is included in cycle time calculations for scrapers?
💡 Hint: Consider all the actions the scraper takes to complete its job.
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 swell factor?
- The weight of material
- The ratio of loose dry unit weight to bank dry unit weight
- A type of soil
💡 Hint: Think about material properties relevant to earth moving.
Question 2
True or False: A pusher increases the swell factor by 5%.
- True
- False
💡 Hint: Recall how pressure impacts material density.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A scraper has a heaped capacity of 30 m³. If the swell factor is modified by a 15% increase when a pusher assists, calculate the effective bank volume it can carry.
💡 Hint: Split the problem into steps, starting with the effective load and then modifying the swell factor.
Question 2
Calculate the total cycle time if a scraper has loading time of 1.2 minutes, dump time of 0.5 minutes, and return to load time of 2 minutes.
💡 Hint: Make sure to factor in all components, even shorter ones.
Challenge and get performance evaluation