Reference no: EM132736211
1. Job A, B, C, D, E with processing times (days): 8, 2, 4, 6, 7 and immediate predecessors are: A has none, B needs A, C needs B, D needs B, E needs both C and D. Which activity along the critical path has a slack time of 2 days?
a. A
b. B
c. C
d. D
2. If the arrival rate of customers at a particular shop is 60 customers per hour at a steady state. If each shop representative can handle 12 customers per hour, how many servers are necessary for the system to remain stable?
a. 60
b. 12
c. 5
d. none of the above choices
3. A cashier at a department store can ring up 25 customers in every hour. About 15 customers enter the store every hour. What is the average number of customers waiting in line?
a. .50
b. 60%
c. 50%
d. 1
e. 3
4. Which of the following minimizes the number of jobs to be completed in a system?
a. first-in, first-out
b. last-in, first-out
c. shortest processing time
d. longest processing time
5. Pity's Milk Chocolate Bars have an annual demand of 22,000 bars. The daily demand for this chocolate is 1800 bars. The company is able to produce at a daily rate of 2500 bars. The set-up cost is $800, and the annual holding cost is $22. Pity's operates 250 days out of the year and the lead time is 5 days. What is the reorder point?
a. 204
b. 309
c. 560
d. 440
6. Which of the following does not adhere to the FIFO rule?
a. checking in luggage
b. waiting at a drive-thru
c. going on a ride at an amusement park
d. waiting to see a doctor in the ER
7. Suppose an activity has an optimistic processing time of 4 days, a most likely time of 10 days, and a pessimistic processing time of 16 days. Determine the variance associated with this activity.
a. 1 day
b. 2 days
c. 3 days
d. 4 days
8. A cashier at a department store can ring up 25 customers in every hour. About 15 customers enter the store every hour. How many minutes will the customer spend from the time he/she arrives to the time he/she departs after buying something?
a. 10
b. 6
c. 3
d. 9
e. none of the above choices
9. What are the 2 types of costs associated with EOQ?
a. fixed costs and variable costs
b. relevant costs and ordering costs
c. holding costs and variable costs
d. holding costs and ordering costs
10. On shopping days, like Black Friday, an arriving customer wanted to enter a store to purchase a new TV. She saw that there were so many people on the line, so she decided to not go in at all. The customer is illustrating:
a. reneging
b. jockeying
c. balking
d. facilitating