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Questions and Answers
What is the total hourly operating cost calculated for the loader?
What is the total hourly operating cost calculated for the loader?
How is the hourly depreciation cost calculated for the loader?
How is the hourly depreciation cost calculated for the loader?
What factor is used to calculate the tire repair cost per hour?
What factor is used to calculate the tire repair cost per hour?
What is the hourly fuel cost based on the provided calculations?
What is the hourly fuel cost based on the provided calculations?
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Which components contribute to the ownership cost of the loader?
Which components contribute to the ownership cost of the loader?
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What is the estimated annual ownership cost of a crawler tractor costing $155,000 with a salvage value of 12% under average operating conditions?
What is the estimated annual ownership cost of a crawler tractor costing $155,000 with a salvage value of 12% under average operating conditions?
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How is the hourly ownership cost calculated for a piece of construction equipment?
How is the hourly ownership cost calculated for a piece of construction equipment?
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What percentage is used for estimating tire maintenance and repair costs in relation to hourly Straight-Line depreciation?
What percentage is used for estimating tire maintenance and repair costs in relation to hourly Straight-Line depreciation?
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What is the estimated usable life of a construction tractor based on an annual usage of 2,000 hours and a total useful life of 12,000 hours?
What is the estimated usable life of a construction tractor based on an annual usage of 2,000 hours and a total useful life of 12,000 hours?
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Which factor is NOT included in the calculation of the Minimum Acceptable Rate of Return (MARR)?
Which factor is NOT included in the calculation of the Minimum Acceptable Rate of Return (MARR)?
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What is the formula for calculating hourly fuel cost in construction equipment operation?
What is the formula for calculating hourly fuel cost in construction equipment operation?
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Is fringe benefits typically a percentage of the actual wage rate for labor costs in operating expenses?
Is fringe benefits typically a percentage of the actual wage rate for labor costs in operating expenses?
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Which of the following is NOT a component of operating costs for construction equipment?
Which of the following is NOT a component of operating costs for construction equipment?
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Study Notes
Construction Equipment Ownership Costs
- Economic useful life is estimated by hours of use
- Tables provide estimated useful life for different equipment under favorable, average, and unfavorable operating conditions
- Example: A crawler tractor with a $155,000 purchase price and 2,000 operating hours per year has a 6-year ownership period under average conditions.
Ownership Cost Example
- A crawler tractor costs $155,000
- Annual usage: ~2,000 hours
- Salvage value is 12% of purchase price
- Interest: 9%; Taxes: 2%; Insurance: 2%; Storage: 2%
- Estimated annual ownership cost under average conditions is calculated
- Example factors like minimum acceptable rate of return (MARR) and present worth of salvage value are incorporated
Operating Costs
- Operating costs depend on equipment age, repair, and operating conditions
- Maintenance and repair costs are a percentage of annual straight-line depreciation
- Separate costs are for replacements like tires, cutting edges, bucket teeth, and rippers.
Operating Costs: Repair
- Hourly repair cost = (Repair Factor) x (Useful Life in hours) x (Hourly Depreciation Rate)
- Repair factors vary based on equipment and operating conditions (favorable, average, unfavorable)
- Example factors from tables are used to calculate various costs
Operating Costs: Tires
- Separate cash flow analysis is used for tire maintenance and repair costs
- Tire maintenance and repair costs are estimated at 15% of hourly straight-line depreciation
Operating Costs: Fuel
- Hourly fuel cost = (Horsepower) x (Fuel Factor) x (Fuel Cost)
- Fuel factors are provided in gallons per horsepower-hour for different equipment and operating conditions
Operating Costs: Service, Downtime, Labor Cost
- Servicing costs (filter, oil, and grease) are estimated as a percentage of the hourly fuel cost
- Downtime is analyzed using an operating factor (actual working minutes/hour)
- Labor cost includes hourly wage rates plus fringe benefits (20% to 30% of actual wage rate)
Operating Cost Example (Wheeled Loader)
- A $114,000 wheeled loader with a 2,000 hour per year and 6-year useful life, $35,000 salvage value, and a 105 hp diesel engine
- Costs for fuel, operator, tires calculated to find hourly operating costs
Operating Cost Calculation Examples
- Examples of detailed calculations for repair, tire and fuel costs are provided showing step by step how those costs are estimated
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Description
This quiz explores the various factors influencing the ownership costs of construction equipment. It covers economic useful life assessments, annual ownership cost calculations, and the impact of operating conditions on overall costs. Test your knowledge on factors like salvage value, interest rates, and maintenance expenses.