6. Rayloc rebuilds automotive components. Its main facility has a work cell dedicated to rebuilding fuel pumps. The tasks, times, and predecessor relationships are as follows:

a. (**) Draw a precedence diagram for the tasks. Rayloc would like the cell to be able to handle 100 pumps a day. What is the takt time? What is the theoretical minimum number of workstations needed?

b. (**) Develop workstation assignments using the “largest eligible task” rule.

c. (**) How many workstations does your solution require? What is the cycle time for the line? What is the idle time? What is the percent idle time?

d. (***) Suppose Rayloc would like to double the output to 200 pumps a day. Is this possible, given the tasks just listed? Explain why or why not.

Transcribed Image Text:

TASK TIME (SECONDS) IMMEDIATE PREDECESSOR A 100 None B 150 None C 93 A D 120 B E 86 B F 84 C G 65 D, E H 15 F, G