Engineering, 20.11.2019 17:31 ae02705

Apower shovel with a dipper of 1.5 cubic yard capacity has a standard operating cycle time of 60 seconds. the excavated material which has a swell factor of 1.08 will be disposed by a dump truck with a 7.5 cubic yard capacity at a dumpsite 5 miles away. the average speed of a dump truck is 25 mph and the dumping time is 75 seconds. both the power shovel and the dump truck are operated 8 hours per day. a. find the daily standard production rate of the power shovel. b. find the daily standard production rate of the dump truck and number of trucks required. c. if the work conditions at the site that affect the productivity of the shovel can be represented by four factors f1 = 0.940, f2 = 0.952, f3 = 0.850 and f4 = 0.750, determine the job-site productivity and the actual cycle time. d. if the work conditions at the site affect the productivity of the dump truck can be represented by three factors f1 = 0.952, f2 = 0.700 and f3 = 0.750, determine the job site productivity of the dump truck, and the number of dump trucks required.

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Apower shovel with a dipper of 1.5 cubic yard capacity has a standard operating cycle time of 60 sec...

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