QUESTION 4: In a plant, forklifts are used to deliver the materials between the departments. The following From-to chart displays the daily number of loads carried (above the slash) and the distances in metem (below the slash) travelled between the five departments of the plant. A day consists of 8 hours. To D1 D2 D3 D4 D5 From D1 12/45 11/30 15/54 D2 12/35 D3 0. 11/42 D4 27/65 D5 Loading and unloading times per delivery are 2.25 and 2.00 minutes, respectively. The loaded vehicle velocity is assumed to be 0.75 m/sec, and the empty vehicle velocity is taken as 0.90 m sec Availability is assumed as 92%, and workers are 85% efficient. The anticipated traffic factor is 90%. Draw the network diagram of the system. How many forklifts will be required to operate this system: a. If the forklifts never travel unloaded (empty)? b. If the unloaded distance that the forklifts travel is equal to their loaded distance?

QUESTION 4: In a plant, forklifts are used to deliver the materials between the departments. The following From-to chart displays the daily number of loads carried (above the slash) and the distances in metem (below the slash) travelled between the five departments of the plant. A day consists of 8 hours. To D1 D2 D3 D4 D5 From D1 12/45 11/30 15/54 D2 12/35 D3 0. 11/42 D4 27/65 D5 Loading and unloading times per delivery are 2.25 and 2.00 minutes, respectively. The loaded vehicle velocity is assumed to be 0.75 m/sec, and the empty vehicle velocity is taken as 0.90 m sec Availability is assumed as 92%, and workers are 85% efficient. The anticipated traffic factor is 90%. Draw the network diagram of the system. How many forklifts will be required to operate this system: a. If the forklifts never travel unloaded (empty)? b. If the unloaded distance that the forklifts travel is equal to their loaded distance?

Operations Research : Applications and Algorithms

4th Edition

ISBN:9780534380588

Author:Wayne L. Winston

Publisher:Wayne L. Winston

Chapter15: Deterministic Eoq Inventory Models

Section: Chapter Questions

Problem 3RP

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