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Question: the elements together with the predecessor and processing time of...

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the elements together with the predecessor and processing time of two models A and B are shown in table below. hourly production rate of model a and b are 25 units/hr and 18 units/hr. assume E=1.0, Er=1.0 and M=1.
a) draw the precedence diagram for each model and both models
b) find the theoretical number of workstation needed to achieve the required production rate.
c) use K-W method to solve the line balancing problem
d) determine the balance efficiency for your solution in (c)
e) determine the fixed rate launching interval and fixed rate sequence

Work Element k Tek (min) Preceded byTek (min) Preceded by 0.5 0.3 0.7 0.4 1.2 0.5 0.3 0.8 2 1 4 No operation 2,3 No operation 1.3 6 0.4 0.6 No operation 0.7 0.5 4.5 5,6 9 0.5 4.2

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