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Engineering, 19.10.2021 18:30 imanim3851

scrapers are used to haul dirt from a borrow pit to the cap of a landfill. the estimated cycle time for the scrapers is 9.5 minutes. The scrapers carry 10 cubic yards of soil per trip . using a system efficiency of 45 minutes per hour and producitivity factor of determine the number of labor hours to haul 1 cubic yard of dirt. each scraper require one operator

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