2.2 - Factors Affecting Unit Cost
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Practice Questions
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What does job efficiency measure?
💡 Hint: Think about the time a machine is used compared to the time it's available.
What is a correction factor?
💡 Hint: Recall how we adjust calculations to match conditions.
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Interactive Quizzes
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What is the purpose of a correction factor?
💡 Hint: Think of the purpose of corrections in math.
True or False: All machines operate at maximum efficiency under all conditions.
💡 Hint: Consider real-world challenges that machines face.
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Challenge Problems
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If a bulldozer’s cost per hour is $1200 and its adjusted productivity after applying various factors is 30 bank meters/hour, what is the total cost for moving 150 bank meters?
💡 Hint: Use unit cost calculations to find the total.
During a project, the soil density changes to require a higher correction factor than previously planned. If the original unit cost was $25, and your new factor raises costs due to reduced productivity, estimate the new cost assuming a 15% increase.
💡 Hint: Calculate the increase based on percentage change.
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