7 - Summary of Operating Costs
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Practice Questions
Test your understanding with targeted questions
What is the theoretical fuel consumption rate for a gasoline engine in gallons per horsepower hour?
💡 Hint: Look for the standard value stated in the section.
What do you multiply to estimate hourly fuel cost?
💡 Hint: Think about the components needed for this calculation.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the fuel consumption rate for diesel engines in standard conditions?
💡 Hint: Refer back to the section discussing fuel consumption rates for engines.
True or False: The lubricating oil cost is invariant to the working conditions of the engine.
💡 Hint: Think about the factors that influence oil wear and change intervals.
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Challenge Problems
Push your limits with advanced challenges
Consider a construction project using a loader that operates under harsh conditions. The loader's performance typically drops fuel usage to 0.08 gallons per horsepower hour. If the loader runs 12 hours a day at 300 horsepower, what will be the daily fuel cost if diesel is priced at $4 per gallon?
💡 Hint: Use the given rates to calculate both daily consumption and cost.
You have a project that temporarily requires shifting excavators between job sites three times over two weeks, costing $600 each time. If it takes two weeks, estimate the total mobilization cost for the project. Consider cost variations.
💡 Hint: Remember to include all movement costs when planning your project budget.
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