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(isom162)[2008](f)quiz~3396^_10374.pdf
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Extra Quiz 1 questions from 2008.
Answer the next six questions for the following problem:
The call center of a phone ordering company has two operators, each can handle 50 customers order per hour. The order picking team has five workers and each worker can finish picking of 16 customer order per hour. After picking, the customer orders are packed into bags by the packing team of 3 workers. A packing worker takes 3 min. to pack a customer order on the average. Assume the call center works at full capacity from
8:00 am to 5:00pm, with one hour lunch break, i.e., not taking any customer order, or picking, or packing during the break. The order picking team and the order packing team have to complete all the customer orders on the same day received by the call center. The following flow chart shows the process flow.
Order taking Order picking Order packing
1. How many customer orders can be completed (order taking, picking and packing) in a day?
A. 800
B. 640
C. 480
D. 400
E. Cannot be determined from the given information.
2. What is the throughput rate (completed packed customer orders per hour) of the system?
A. 100
B. 80
C. 60
D. 20
E. 16
3. What is the cycle time of the system when it is operating?
A. 3.75 min
B. 3 min
C. 1 min
D. 3/4 min
E. 3/5 min
4. What is the maximum number (level) of customer orders waiting to be packed?
A. 200
B. 160
C. 60
D. 20
E. Cannot be determined with given information
5. How long in a day (excluding lunch break) will the packing team have to work to complete all customer orders?
A. 8 hours
B. 10 hours
C.
12 hours
D. 13 hours and 20 min
E. None of the above
6. What is the run time of customer order through the system?
A. 3 min
B. 3.75 min
C. 6.75 min
D. 7.95 min
E. Cannot be determined from the given information
7. If inventory are allowed to accumulate between process steps, how will the flow time T be affected?
A. T will decrease
B. T will increase
C. T will not be affected
D. None of the above