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4 cards from this section. Quick, good the night before a test.
What is back-track loading?
Think about what the pusher does after loading the first scraper.
What is the main advantage of chain loading?
Consider why this method is more efficient.
Which loading method is the slowest?
Consider the steps involved in each loading method.
True or False: Chain loading allows the pusher to pull scrapers without returning.
Think about the efficiency of the process.
You have two scrapers and one pusher. If the scraper cycle time is 2 minutes and the pusher cycle time is 1 minute, how many scrapers can effectively be served?
Think about how their times relate to efficiency.
In an excavation project, a contractor wants to use back-track loading but realizes it might delay progress. If the average load time is 3 minutes and the return time is 2 minutes, what is the total cycle time?
Add the loading and returning times together.
6 more questions in this section. Enroll free to practise them all.
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