Practice Correction Factors In Productivity Estimation (4) - Cycle Time of the Bulldozer

Practice: Correction Factors in Productivity Estimation

Lesson 4Cycle Time of the Bulldozer

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6 sample questions

Question 1.
What is cycle time?
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Think about what operations a bulldozer performs.
Question 2.
Name one factor that affects maneuver time.
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Consider how the bulldozer is controlled.
3Question 3.
What does cycle time include?
- Only push time
- Push time and backtrack time
- Push time
- backtrack time
- and maneuver time
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Think about what happens in a full operation.
4Question 4.
True or False: Correction factors are important only if performance curves are 100% accurate.
- True
- False
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Consider how real-world scenarios differ from ideal conditions.
Question 5.
If a bulldozer’s ideal productivity, as per manufacturer's curve, is 500 m³/hour, and correction factors for operator skill (0.85) and visibility (0.9) must be applied, what is the actual productivity?
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Multiply the ideal productivity by both correction factors sequentially.
Question 6.
A bulldozer with a total cycle time of 10 minutes operates at a job efficiency of 25 minutes per hour. How many cubic meters can it potentially move if the ideal production rate is set at 400 m³/hour?
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Adjust the ideal production rate to reflect the hourly operation time.

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