Problem 6-7
Question
Problem 6-7For the set of tasks given
below, do the following:
Task Task Time(seconds) Immediate Predecessor
A 45 –
B 11 A
C 9 B
D 50 –
E 26 D
F 11 E
G 12 C
H 10 C
I 9 F, G, H
J 10 I
193
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b. Determine the minimum and maximum cycle times in seconds for a desired output of 500 units in a seven-hour day. (Round your answers to 1 decimal place.)
The minimum cycle time seconds
The maximum cycle time seconds
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c. Determine the minimum number of workstations for output of 500 units per day. (Round up your answer to the next whole number.)
Minimum number of workstations
d. Balance the line using the greatest positional weight heuristic. Break ties with the most following tasks heuristic. Use a cycle time of 50 seconds.
Work stations Following Tasks
I
II
III
IV
V
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e. Calculate the percentage idle time for the line using the 50 second cycle time. (Round your answer to 1 decimal place. Omit the “%” sign in your response.)
Percentage of idle time %
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