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3 cards from this section. Quick, good the night before a test.
What is cycle time?
Think about all the tasks it performs.
Define fixed time in cycle time.
Which part of the timing is consistent regardless of distance?
What is included in the cycle time of a scraper?
Think of all tasks the scraper completes during its operation.
True or False: All cycle time components are variable.
Consider which times depend on distance.
A scraper has a fixed loading time of 0.8 min, increased resistance when over 85% loading leads to an effective new loading time of 1.5 min after that point. Calculate the difference in cycle time if loading 90% payload is attempted.
Consider the totality of the cycle time when calculating efficiencies.
Given varying haul route conditions affecting machine speed, calculate the haul time if the distance is 200 meters and average speed is 10 m/s. Adjust for resistance factors diminishes speed to 7 m/s.
How do different speeds impact the time taken to cover the same distance?
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