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2 cards from this section. Quick, good the night before a test.
What is the swell factor?
Think about how volume changes when soil is disturbed.
How do you compute cycle time?
Remember to consider each operational step!
What does the swell factor represent?
Think about changes in material when it is loaded.
Is the rolling resistance constant across a haul route?
Consider its independent nature from gradients.
Given a scraper with a volume of 25 m³, calculate the effective load volume when the swell factor is considered and the scraper is loaded to 90%.
Don't forget to adjust the swell factor to find the bank volume!
Assuming a pusher cycle time of 1.2 min, calculate how many scrapers can be operated with a total cycle time of 10 minutes.
Use the total cycle time effectively to find your answer.
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