PS.74 Bell computer is planning to launch a new high-end server. Nine steps or tasks are required to assemble this computer. Daily demand is expected to be 90 units and there are three 8-hour shifts available each day to meet this production quota.
Task
Req'd Time (in minutes)
Predecessor
A
12
None
B
13
A
C
5
B
D
4
B
E
13
A
F
6
C,D
G
7
F
H
11
E
I
6
G,H
What is the total time, in minutes, to produce one server?
What is the takt time (in minutes) for this production line? (Your answer should be a whole number.)
What is the theoretical minimum number of workstations required for this production line? (Round up your answer to the nearest whole number.)
After assigning task A to workstation 1, which task (or tasks) should you assign to workstation 2? (In the field below, write the number that corresponds to your answer. Do not put a period after the number.)
B
C
D
E
B or E
C and D
Suppose you assign task B to workstation 2, which task (or tasks) should you then attach to workstation 3? (In the field below, write the number that corresponds to your answer. Do not put a period after the number.)
E and H
E
E or C, D, and F
C and D
Assume you assign tasks C, D and F to workstation 3, task E to workstation 4, which task (or tasks) should you assign to workstation 5?
G and H
G and I
H and I
H
What is the cycle time (in minutes) for this production line?
What is the overall efficiency for this production line? (percentage)