An irrigation project requires digging and paving an irrigation canal with a length of (30 km) and a semi-circular section with a diameter of (8 m). The work must be completed within one year, and in the event of delay, a fine delay of $200/day. You have two options for work: 1st Option: using standard equipment (excavators, graders and hand labor) had a cost of $10/m³, the job will be finish without delay. 2nd Option: Use a channel trimmer machine with the following specifications: Purchase price ($70,000), it can be sold after its economic life of (5 years) for ($30,000), its speed (10 m/hr), engine diesel with (250 hp) and its work 48 minutes/hr, capacity of crankcase is (50 liters), the number of hours between changing the oil (100 hr), the maintenance cost is (80%) of its depreciation, the price of one liter of fuel ($0.5/liter) and of oil ($1/liter), the operators' wages ($15,000/year), annual operating hours (2000 hr), and the owner must pay taxes of 10% of the average value of the machine. find which of them is more economical?
An irrigation project requires digging and paving an irrigation canal with a length of (30 km) and a semi-circular section with a diameter of (8 m). The work must be completed within one year, and in the event of delay, a fine delay of $200/day. You have two options for work: 1st Option: using standard equipment (excavators, graders and hand labor) had a cost of $10/m³, the job will be finish without delay. 2nd Option: Use a channel trimmer machine with the following specifications: Purchase price ($70,000), it can be sold after its economic life of (5 years) for ($30,000), its speed (10 m/hr), engine diesel with (250 hp) and its work 48 minutes/hr, capacity of crankcase is (50 liters), the number of hours between changing the oil (100 hr), the maintenance cost is (80%) of its depreciation, the price of one liter of fuel ($0.5/liter) and of oil ($1/liter), the operators' wages ($15,000/year), annual operating hours (2000 hr), and the owner must pay taxes of 10% of the average value of the machine. find which of them is more economical?
Fundamentals Of Construction Estimating
4th Edition
ISBN:9781337399395
Author:Pratt, David J.
Publisher:Pratt, David J.
Chapter10: Pricing Excavation And Backfill
Section: Chapter Questions
Problem 7RQ
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Transcribed Image Text:An irrigation project requires digging and paving an irrigation canal with a
length of (30 km) and a semi-circular section with a diameter of (8 m). The work must
be completed within one year, and in the event of delay, a fine delay of $200/day.
You have two options for work:
1st Option: using standard equipment (excavators, graders and hand labor) had a cost
of $10/m³, the job will be finish without delay.
2nd Option: Use a channel trimmer machine with the following specifications:
Purchase price ($70,000), it can be sold after its economic life of (5 years) for
($30,000), its speed (10 m/hr), engine diesel with (250 hp) and its work 48 minutes/hr,
capacity of crankcase is (50 liters), the number of hours between changing the oil (100
hr), the maintenance cost is (80%) of its depreciation, the price of one liter of fuel
($0.5/liter) and of oil ($1/liter), the operators' wages ($15,000/year), annual operating
hours (2000 hr), and the owner must pay taxes of 10% of the average value of the
machine.
find which of them is more economical?
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