4.1 - Versatility of Bulldozers
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Practice Questions
Test your understanding with targeted questions
What is a correction factor?
💡 Hint: Think about how conditions change productivity.
Why is soil density important for bulldozer productivity?
💡 Hint: Connect to the concept of work and density.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What correction factor should be used for soil density greater than ideal?
💡 Hint: Think about how density affects power needed.
True or False: Job efficiency directly affects the number of bank cubic meters moved per hour.
💡 Hint: Consider how much effective time is used.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A bulldozer has an ideal productivity output of 120 loose m³/hr. If the soil density is 1750 kg/m³, determine the adjusted productivity. Apply all relevant correction factors: soil density (0.78), operator skill (0.75), and job efficiency (0.83).
💡 Hint: Start by applying each correction factor sequentially.
Analyze a project where the operator is skilled yet job efficiency is low due to poor weather. If the ideal productivity is 150 loose m³/hr with factors of 0.85 for operator skill and 0.6 for job efficiency, calculate the total productive output for a 4-hour operation.
💡 Hint: Consider both skill and job efficiency concurrently.
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