Question: What aboud information ? Question 5. Cost and Productivity Estimation of Operations Involving Multiple Equipment Types We are excavating soil and dumping it to an

What aboud information ? What aboud information ? Question 5. Cost and

Question 5. Cost and Productivity Estimation of Operations Involving Multiple Equipment Types We are excavating soil and dumping it to an external site using an excavator-truck operation. The truck has a capacity of 25m3, and hourly cost of $70/hr. The round trip time of the truck (without the load time) is 10 minutes. The excavator costs $90/hr and has a cycle time of 25 seconds. The excavator has a capacity of 3m3. Efficiency is 50 minutes per hour. (Notice that this is the same problem as the one in the slides with the exception of the truck size.) A. How many trucks do we need for this operation? (prove by calculating the cost per hour and cost per m3 ) (15 Marks) B. Based on the number of trucks that you calculated, what is the productivity of this operation? (5 Marks) C. Based on the number of trucks that you calculated, how many hours are required to excavate and dump 80,000m3 of soil

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