Suppose you are given the linear process depicted below. Numbers in parentheses indicate throughput capacities. No buffers exist between stations, so blocking & starvation rules apply.
Task A (5) —> Task B (6) —> Task C (4) —> Task D (7) —> Task E (6)
Suppose you could hire an additional worker, which would double the throughput capacity for any single task. To which task should you assign this worker?
A
B
C
D
E
Following the previous question, what would the actual throughput rate out of Task E be after hiring the new worker?
2
3
4
5
6
7
8
Suppose you have two workers performing the same task in parallel. Each worker can handle one order at a time. Worker A can process an order in 10 minutes; worker B is takes 5 minutes per order.
How many orders per minute can both workers produce in combination?
A).1
B) .2
C) .3
D) .5
E) 2
F) 5
G) 15
H) 20
Suppose you have a three task sequence. All customers go to Task A. After task A, 60% of customers go to Task B; the other 40% go to task C. After task B or C, all customers then go to Task D before leaving. No buffers exist between tasks, so blocking/starvation rules apply.
Suppose throughput capacities are as follows. Task A: 10 customers/hour; task B: 5 customers/hour; task C: 6 customers/hour; task D, 12 customers/hour.
Use this information to answer the next 3 questions.
At what rate will customers leave task D (in customers/hour)? Pick the closest answer.
1
3
5
7
9
11
The utilization of Task B is closest to which of the following?
0%
20%
40%
60%
80%
100%
What is the bottleneck in the A-C-D process route?
A
B
C
D
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