Question 1

The central problem in virtually every waiting line situation is a decision balancing the costs of adding services with the costs of waiting.

Accepted Answer

True

Question 2

Ideally, in waiting line or queuing analysis, we want to balance the cost of service capacity with the cost of waiting.

Accepted Answer

True

Question 3

The customer arrivals in a queuing system come almost exclusively from finite populations.

Accepted Answer

False

Question 4

The customer arrivals in a queuing system come almost exclusively from infinite populations.

Accepted Answer

False

Question 5

A finite population in waiting line management refers to a population that is large enough in relation to the service system so that the change in population size caused by subtractions or additions to the population does not significantly affect the system probabilities.

Accepted Answer

False

Question 6

An infinite population in waiting line management refers to a population that is large enough in relation to the service system so that the change in population size caused by subtractions or additions to the population does not significantly affect the system probabilities.

Accepted Answer

True

Question 7

A variable arrival rate is more common in waiting line management than a constant arrival rate.

Accepted Answer

True

Question 8

A constant arrival rate is more common in productive systems than a variable arrival rate

Accepted Answer

False

Question 9

Arrival characteristics in a queuing problem analysis include the length of the queue.

Accepted Answer

False

Question 10

The Poisson probability distribution is used in waiting line management when one is interested in the number of arrivals to a queue during some fixed time period.

Accepted Answer

True

Question 11

The demand on a hospital\'s emergency medical services is considered a controllable arrival pattern of the calling population

Accepted Answer

False

Question 12

The demand on a hospital\'s emergency medical services is considered an uncontrollable arrival pattern of the calling population.

Accepted Answer

True

Question 13

Gas stations, loading docks, and parking lots have infinite potential length of lines for their respective queuing systems.

Accepted Answer

False

Question 14

Highest-profit customer first is a queue discipline discussed in the textbook.

Accepted Answer

True

Question 15

Longest waiting time in line is a queue discipline discussed in the textbook.

Accepted Answer

True

Question 16

Best customer last is a queue discipline discussed in the textbook

Accepted Answer

False

Question 17

A car wash is an example of a single-channel, multiphase queuing system

Accepted Answer

True

Question 18

A tellers\' window in a bank is an example of a single-channel, multiphase queuing system.

Accepted Answer

False

Question 19

The admissions system in a hospital for patients is an example of a single-channel, single-phase queuing system.

Accepted Answer

False

Question 20

There are different queuing models to fit different queuing situations.

Accepted Answer

True

Question 21

In a practical sense, an infinite queue is one that includes every possible member of the served population

Accepted Answer

False

Question 22

In a waiting line situation, multiple lines occur only when there are multiple servers.

Accepted Answer

True

Question 23

The term \"queue discipline\" involves the art of controlling surly and unruly customers who have become irritated by waiting.

Accepted Answer

False

Question 24

In a practical sense, a finite population is one that potentially would form a very long line in relation to the capacity of the serving system.

Accepted Answer

False

Question 25

In a department 25 machines are kept running by three operators who respond to randomly occurring equipment problems. An analyst who wanted to know how much production was being lost by machines waiting for service could use queuing theory analysis to find out.

Accepted Answer

True

Question 26

In a department 25 machines are kept running by three operators who respond to randomly occurring equipment problems. When an operator is not immediately available for servicing a machine having a problem, the amount of production being lost by machines waiting for service increases. An analyst can use queuing theory analysis to determine whether to pay overtime to get an operator from a different shift or not

Accepted Answer

True

Question 27

In a department, 25 machines are kept running by three operators who respond to randomly occurring equipment problems. An analyst wanting to know whether to add a fourth operator or downsize to two operators would be helped by using queuing theory analysis.

Accepted Answer

True

Question 28

Regardless of the computer language chosen for a simulation model, too much data from a simulation can be dysfunctional to problem solving.

Accepted Answer

True

Question 29

Spreadsheet simulations have become obsolete due in part to specialized computer simulation languages like SLAM or SIMAN.

Accepted Answer

False

Question 30

General-purpose simulation software (GPSS) is really a computer language that allows programmers to build their own simulation models.

Accepted Answer

True

Question 31

Special-purpose simulation software is specially built to run specific applications and may have provisions in manufacturing models to allow for specifying the number of workcenters, their descriptions, arrival rates, and even batch sizes

Accepted Answer

True

Question 32

Having animation capabilities to graphically display product flows through a production system is not considered a desirable feature of simulation software systems.

Accepted Answer

False

Question 33

Being able to permit interactive debugging of a model so the user can trace flows through the model and more easily find errors is considered a desirable feature of simulation software systems.

Accepted Answer

True

Question 34

Being user-friendly and easy to understand is considered a desirable feature of simulation software systems.

Accepted Answer

True

Question 35

Being user-friendly and easy to understand typically means that the simulation produces less accurate results.

Accepted Answer

False

Question 36

The more time, money, and effort you spend developing a simulation model, the more likely you are to achieve useful results.

Accepted Answer

False

Question 37

The leading general- and special-purpose simulation models follow a well-documented and standardized approach.

Accepted Answer

False

Question 38

While spreadsheets can be somewhat useful for a variety of simulation problems, they can be confusing and are vulnerable to several drawbacks, including weak routines for random-number selection.

Accepted Answer

False

Question 39

Which of the following is a suggestion for managing queues that is mentioned in the textbook?        A. Put up a serpentine lane to keep people from jumping ahead in line.    B. Use humor to defuse a potentially irritating situation.    C. Segment the customers.    D. Assure customers that the wait is fair, and inform them of the queue discipline.    E. Tell people in the queue that each will be served as soon as possible.

Accepted Answer

C- segment the customers

Question 40

Which of the following is not a suggestion for managing queues presented in the textbook?        A. Try to divert your customer\'s attention when waiting.    B. Segment the customers.    C. Encourage customers to come during the slack periods.    D. Train your people to be friendly.    E. Periodically close the service channel to temporarily disperse the line.

Accepted Answer

E- periodically close the service channel to temporarily disperse the line.

Question 41

Which of the following is a suggestion for managing queues presented in the textbook?        A. Train your servers to be friendly.    B. Tell customers that the line should encourage them to come during slack periods.    C. Give each customer a number.    D. Periodically close the service channel to temporarily disperse the line.    E. Use humor to defuse a potentially irritating situation.

Accepted Answer

A- train your servers to be friendly

Question 42

Which of the following are the three major components of a queuing system?        A. The source population, how customers exit the system, and the queuing discipline    B. The number of servers, the service speed, and the waiting line    C. The source population, how the customer exits the system, and the servicing system    D. The source population and the way customers arrive at the system, the serving systems, and how customers exit the system    E. The service speed, the queue discipline, and the waiting line

Accepted Answer

C- the source population, how the customer exits the system, and the servicing system.

Question 43

Which of the following is a suggestion for managing queues that is mentioned in the textbook?        A. Put up a serpentine lane to keep people from jumping ahead in line.    B. Use humor to defuse a potentially irritating situation.    C. Train your servers to be friendly.    D. Assure customers that the wait is fair, and inform them of the queue discipline.    E. Tell people in the queue that each will be served as soon as possible.

Accepted Answer

C- train your servers to be friendly.

Question 44

Which of the following is not a suggestion for managing queues presented in the textbook?        A. Train your servers to be friendly.    B. Segment the customers.    C. Determine an acceptable waiting time for your customers.    D. Inform your customers of what to expect.    E. Encourage customers to come during slack periods.

Accepted Answer

C- determine an acceptable waiting time for your customers.

Question 45

In essence, a queuing system includes several major components. Which of the following is not one of them?        A. Source population    B. Servicing system    C. How the customer exits the system    D. The queue discipline    E. None of these

Accepted Answer

D- the queue discipline

Question 46

Which of the following is an example of a finite population in a queuing system?        A. People waiting to place their order at a fast-food restaurant    B. The departmental faculty in line at the copier    C. People waiting in line at an ATM    D. Patients seeking help in a hospital emergency room    E. Taxpayers calling for assistance from the IRS

Accepted Answer

B- the departmental faulty in line at the copier

Question 47

Which of the following is not a queue discipline discussed in the textbook?        A. First come, first served    B. Last in, first out    C. Limited needs    D. Shortest processing time    E. Best customer first

Accepted Answer

B- last in, first out

Question 48

Which of the following queue disciplines is discussed in the textbook?        A. Emergencies first    B. Garner-Whitten formula    C. Newest customer first    D. Patient customers last    E. None of these

Accepted Answer

A- emergencies first

Question 49

Buying a ticket for a college football game where there are multiple windows at which to buy the ticket 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 these

Accepted Answer

C- multichannel, single phase

Question 50

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 these

Accepted Answer

C- multichannel, single phase

Question 51

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 these

Accepted Answer

A- single channel, single phase

Question 52

In a college registration process, several department heads have to approve an individual student\'s semester course load. What is the queuing system line structure?        A. Single channel, single phase    B. Single channel, multiphase    C. Multichannel, single phase    D. Multichannel, multiphase    E. None of these

Accepted Answer

B- single channel, multiphase

Question 53

Standing in line to buy a ticket for a movie where there are multiple windows at which 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 these

Accepted Answer

C- multichannel, single phase

Question 54

A roller coaster ride in an amusement park employs 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 these

Accepted Answer

A- single channel, single phase

Question 55

Machine breakdown and repair in a 12-machine factory having one repair mechanic 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 these

Accepted Answer

A- single channel, single phase

Question 56

Machine breakdown and repair in a 12-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 these

Accepted Answer

C- multichannel, single phase

Question 57

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 hour    D. 0.25 hour    E. None of these

Accepted Answer

C- 0.5 hour

Question 58

For an infinite queuing situation, 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 hour    D. 0.1 hour    E. None of these

Accepted Answer

C- 0.2 hour

Question 59

A company is concerned about the number of customers who have to wait for service in its customer service department. Assume the rate at which customers are serviced is 12 per hour. Using the infinite queuing notion for the models presented in the textbook, which of the following is the mean time between arrivals?        A. 12 minutes    B. 6 minutes    C. 2 minutes    D. 1 minute    E. None of these

Accepted Answer

E- none of these

Question 60

In modeling a simulation, random numbers from 00 to 99 are assigned with the intervals determined from frequency distributions for each behavior occurrence. Assume there are two behaviors, A and B, out of 100 tallies. On behavior A you record 45 tallies, and on behavior B you record 55 tallies. Which of the following is a correct random-number interval for behavior A?        A. 00 to 45    B. 00 to 44    C. 56 to 99    D. 55 to 100    E. 45 to 100

Accepted Answer

B- 00 to 44

Question 61

In modeling a simulation, random numbers from 00 to 99 are assigned with the intervals determined from frequency distributions for each behavior occurrence. Assume 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

Accepted Answer

C- 00 to 39

Question 62

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

Accepted Answer

D- 27 to 99

Question 63

Which of the following is an example of general-purpose simulation software?        A. Link Trainer Programs    B. SIMSCRIPT II.5    C. SIM-Central    D. C++    E. Visual Basic

Accepted Answer

B- SIMSCRIPT II.5

Question 64

Which of the following is an example of general-purpose simulation software?        A. PC-MODEL    B. MAP/1    C. SIMFACTORY    D. Canella IV    E. OPUS/2.3

Accepted Answer

A- PC-MODEL

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