Reference no: EM132708098

In order to complete the wing assembly for an experimental aircraft, a company has laid out the major steps and seven tasks involved. These tasks have been labeled A through G in the following table, which also shows their estimated completion times in minute sand immediate predecessors.

Task Immediate Predecessors Task time (in minute)

A ------- 0.50
B ------- 0.60
C A 1.00
D B,C 0.90
E C,D 0.30
F D 0.50
G E,F 0.40

i) Draw the precedence diagram.

ii) Assuming an 8-hour shift, compute the cycle time needed to obtain an output of 385 units per shift.

iii) Determine the minimum number of workstations required.

iv) Assign tasks to the required number of workstations and show the assignment of tasks in a diagram.

v) Find percentage of idle time and efficiency of the capacity utilization.