2.4 - Unit Cost of Production in Earthmoving Operation
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Practice Questions
Test your understanding with targeted questions
Define cycle time in the context of a bulldozer's operation.
💡 Hint: Think of all the tasks a bulldozer performs in one complete operation.
What is job efficiency?
💡 Hint: Consider how long the bulldozer is operational compared to 60 minutes.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What components are included in the cycle time for a bulldozer?
💡 Hint: Think of all the tasks a bulldozer performs in one complete operation.
True or False: Job efficiency is the same as cycle time.
💡 Hint: Legitimate job efficiency does not take into account non-working time.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A bulldozer has a blade load capacity of 2.0 loose cubic meters and a cycle time of 2.5 minutes. How many loose cubic meters can it push in an hour if the job efficiency is 50%?
💡 Hint: Keep in mind job efficiency affects overall output.
If the bulldozer works in a site with a higher material density that modifies productivity by 30% lower from a base of 100 loose cubic meters per hour, what is the adjusted productivity?
💡 Hint: Think about how density affects bulldozer performance!
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