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3 cards from this section. Quick, good the night before a test.
Explain the angle of swing in excavation operations.
Think about how the bucket moves between these two points.
What is cycle time?
Consider all activities involved in one cycle.
What is the ideal angle of swing for maximum productivity in excavators?
Consider how much swing would be practical in a tight space.
True or False: The correction factor increases productivity if the angle of swing is greater than 90 degrees.
Relate this to increased cycle times.
If an excavator’s fill factor is 0.85 and actually digs at 60% of the optimum height with a swing angle of 100 degrees, calculate the productivity per hour.
Pay attention to corrections from height and angle!
Consider a site where the truck positioning leads to excessive waiting time. Discuss strategies to optimize truck exchange and the influence on excavation productivity.
Think about how to implement efficient scheduling.
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