5 - Example Problem on Productivity Estimation
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Practice Questions
Test your understanding with targeted questions
What is 'fixed time' in the context of cycle time for a bulldozer?
💡 Hint: Think about parts of the cycle that do not change.
Define 'job efficiency'.
💡 Hint: It's expressed as a percentage.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does cycle time consist of?
💡 Hint: Remember which timings are varying and which are constant.
True or False: Productivity increases when operating down a slope.
💡 Hint: Think about how gravity affects speed.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Using an ideal production figure of 50 cubic meters per hour from a production curve, how would the productivity change if the correction factor for material density was identified as 0.85 due to heavier soil?
💡 Hint: Apply the correction factor to the ideal production value.
A bulldozer has a blade load capacity of 2.5m³, operates at a speed of 3m/min, and the haul distance is 90 meters. Calculate the productivity per hour and reduce it if the job efficiency is only 40 minutes per hour.
💡 Hint: Break down the total time into push and maneuver components to find effective productivity.
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