Problem: The following tasks, which cannot be split, must be performed on an assembly line in the sequence and the times specified. The required cycle time is 75 seconds.
|
Task
|
Task time (Sec.)
|
Immediate predecessor
|
|
A
|
50
|
NONE
|
|
B
|
40
|
NONE
|
|
C
|
20
|
A
|
|
D
|
45
|
C
|
|
E
|
20
|
C
|
|
F
|
25
|
D
|
|
G
|
15
|
E
|
|
H
|
35
|
B,F,G,
|
|
|
250
|
|
- Draw precedence diagram.
- Balance this line using the largest number of following tasks as the primary rule, and longest task time as the tie-breaker. What is the correct assignment of tasks to stations? (You will not necessarily use all of the stations listed, but you will definitely not need more than 5 stations.)
Station I Station II Station III Station IV Station V