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| 1 | |
Which of the following is an example of a finite population in a queuing system? |
| | A) | People waiting to purchase fuel at a service station |
| | B) | Five machines that are repaired by a maintenance worker |
| | C) | People waiting in line at a teller's window in a bank |
| | D) | Patients seeking help from a doctor in a private practice |
| | E) | Taxpayers calling the IRS for assistance |
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| 2 | |
Which of the following is a queue discipline that is mentioned in the textbook as an alternative to first-come, first-served? |
| | A) | First in, first out |
| | B) | Garner-Whitten formula |
| | C) | Soonest promise date |
| | D) | Patient customers last |
| | E) | Anxious customers first |
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| 3 | |
Buying a ticket for a college football game where there are multiple windows to buy the ticket at features which type of queuing system line structure? |
| | A) | Single channel, single phase |
| | B) | Single channel, multiphase |
| | C) | Multichannel, single phase |
| | D) | Multichannel, multiphase |
| | E) | None of the above |
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| 4 | |
Buying food at a large food store with multiple checkout counters features which type of queuing system line structure? |
| | A) | Single channel, single phase |
| | B) | Single channel, multiphase |
| | C) | Multichannel, single phase |
| | D) | Multichannel, multiphase |
| | E) | None of the above |
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| 5 | |
Getting an autograph from a famous person might involve standing in which type of queuing line structure? |
| | A) | Single channel, single phase |
| | B) | Single channel, multiphase |
| | C) | Multichannel, single phase |
| | D) | Multichannel, multiphase |
| | E) | None of the above |
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| 6 | |
Standing in line to buy a ticket for a movie where there is only one window to buy tickets is which type of queuing system line structure? |
| | A) | Single channel, single phase |
| | B) | Single channel, multiphase |
| | C) | Multichannel, single phase |
| | D) | Multichannel, multiphase |
| | E) | None of the above |
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| 7 | |
Machine breakdown and repair in a twelve machine factory having three repair mechanics would develop which type of queuing system line structure concerning machine breakdowns? |
| | A) | Single channel, single phase |
| | B) | Single channel, multiphase |
| | C) | Multichannel, single phase |
| | D) | Multichannel, multiphase |
| | E) | None of the above |
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| 8 | |
Assume the service rate for a queue in a truck-loading operation is 2 trucks per hour. Using the infinite queuing notion for the models presented in the textbook, which of the following is the average service time? |
| | A) | 2 hours |
| | B) | 1 hour |
| | C) | 0.5 hours |
| | D) | 0.25 hours |
| | E) | None of the above |
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| 9 | |
If the arrival rate for loading trucks is 5 trucks per hour, what is the mean time between arrivals? |
| | A) | 5 hours |
| | B) | 2.5 hours |
| | C) | 0.2 hours |
| | D) | 0.1 hours |
| | E) | None of the above |
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| 10 | |
Which of the following are viewed as advantages of simulation in operations management decision making? |
| | A) | A simulation can be used in training courses as though it were a game |
| | B) | A significant amount of computer time can be utilized running simulations |
| | C) | The technique of simulation requires innovation as it lacks a standardized approach |
| | D) | A simulation may be equally precise but less accurate than a mathematical analysis |
| | E) | Simulations are virtually guaranteed to provide good answers if enough time is spent on developing them. |
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| 11 | |
In modeling a simulation, random numbers from 00 to 99 are assigned with the intervals determined from frequency distributions for each behavior occurrence. If there are two behaviors, X and Y, out of 50 tallies, on behavior X you record 20 tallies and on behavior Y you record 30 tallies. Which of the following is a correct random number interval for behavior X? |
| | A) | 00 to 19 |
| | B) | 01 to 20 |
| | C) | 00 to 39 |
| | D) | 41 to 61 |
| | E) | 45 to 100 |
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| 12 | |
A small vendor has either a good day of sales with an average of $1,000 or a bad day with an average of only $500 for the day. To simulate these outcomes, random numbers from 00 to 99 should be assigned with the intervals determined from the frequency distribution. If, during the last 100 days, the vendor had 27 good days and 73 bad days, which of the following is a correct random number interval for a bad day? |
| | A) | 28 to 99 |
| | B) | 27 to 73 |
| | C) | 27 to 100 |
| | D) | 27 to 99 |
| | E) | 00 to 26 |
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| 13 | |
On a good day, Joe will sell an average of $50,000 of product, on a medium day he will sell $25,000, and on a bad day he will sell only $10,000. Suppose you observe Joe's business for 100 days and, during that time, he had 15 good days, 40 medium days, and 45 bad days. If you draw a random number to represent his sales for the first simulated day and that number was 47, what kind of simulated day did Joe's business have? (Note: Arrange the random number interval probability distribution so it starts with a good day at 00 followed by a medium day, etc.) |
| | A) | A good day |
| | B) | A medium day |
| | C) | A bad day |
| | D) | Cannot be determined |
| | E) | Between medium and bad |
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