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3 cards from this section. Quick, good the night before a test.
What is rimpull?
Think of it as the pulling strength of the machine.
How is the productivity of a scraper calculated?
Remember the formula includes the number of scrapers and their efficiencies.
What is the productivity rate achieved with five scrapers?
Review the production calculations from the section.
Is rimpull essential for the performance of a scraper?
Think about the forces involved in scraper operation.
Calculate the maximum usable rimpull for a scraper with a gross weight of 80,000 kg and a coefficient of traction of 0.6. Assume 50% weight on powered wheels.
Be sure to calculate the weight on the drive wheels before determining usable rimpull.
If a scraper can produce 700 bank cubic meters/hour and the cost per unit is ₹50, what would be the total cost of moving 1,400 bank cubic meters?
Think about how to correlate total volume with cost.
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