Question 1

How many minutes does the average customer spend in the system?

Accepted Answer

A) 7. 
B) 8. 
C) 9. 
D) 10. 
E) 11.
During the early morning hours,customers arrive at a branch post office at the average rate of 45 per hour (exponential interarrival times),while clerks can handle transactions on an average of 4 minutes each (exponential). 
A) 7. 
B) 8. 
C) 9. 
D) 10. 
E) 11.
During the early morning hours,customers arrive at a branch post office at the average rate of 45 per hour (exponential interarrival times),while clerks can handle transactions on an average of 4 minutes each (exponential).

Question 2

A single server queueing system has an average service time of 8 minutes and an average time between arrivals of 10 minutes.The arrival rate is:

Accepted Answer

A) 6 per hour. 
B) 7.5 per hour. 
C) 8 per hour. 
D) 10 per hour. 
E) 12.5 per hour. 
A) 6 per hour. 
B) 7.5 per hour. 
C) 8 per hour. 
D) 10 per hour. 
E) 12.5 per hour.

Question 3

Choosing the number of servers in a system involves finding an appropriate trade-off between the cost of the servers and the amount of waiting.
Multiple Choice Questions

Accepted Answer

A) True 
 B)False

Question 4

The term queue discipline refers to:

Accepted Answer

A) the willingness of customers to wait in line for service. 
B) having multiple waiting lines without customers switching from line to line. 
C) the order in which customers are processed. 
D) the reason waiting occurs in underutilized systems. 
E) None of the above. 
A) the willingness of customers to wait in line for service. 
B) having multiple waiting lines without customers switching from line to line. 
C) the order in which customers are processed. 
D) the reason waiting occurs in underutilized systems. 
E) None of the above.

Question 5

Queueing models conventionally assume that the queue can hold an unlimited number of customers.

Accepted Answer

A) True 
 B)False

Question 6

On average,how many parties of non-truckers are waiting to be seated?

Accepted Answer

A) 0.27. 
B) 0.52. 
C) 0.88. 
D) 1.36. 
E) 1.75. 
A) 0.27. 
B) 0.52. 
C) 0.88. 
D) 1.36. 
E) 1.75.

Question 7

The expected waiting time in line is equal to the expected number of customers in line divided by the arrival rate.

Accepted Answer

A) True 
 B)False

Question 8

Figure
Refer to the following data for a multiple-server,nonpreemptive priority queueing model:  
-What is the average time in the system (in minutes)for a high priority item?

Accepted Answer

A) 2. 
B) 5. 
C) 24. 
D) 35. 
E) 54. 
A) 2. 
B) 5. 
C) 24. 
D) 35. 
E) 54.

Question 9

A single-server queueing system has an average service time of 16 minutes per customer,which is exponentially distributed.The manager is thinking of converting to a system with a constant service time of 16 minutes.The arrival rate will remain the same.The effect will be to:

Accepted Answer

A) increase the utilization factor. 
B) decrease the utilization factor. 
C) increase the average waiting time. 
D) decrease the average waiting time. 
E) not have any effect since the service time is unchanged. 
A) increase the utilization factor. 
B) decrease the utilization factor. 
C) increase the average waiting time. 
D) decrease the average waiting time. 
E) not have any effect since the service time is unchanged.

Question 10

What is the system utilization factor if 5 servers are used?

Accepted Answer

A) 0.6. 
B) 0.7. 
C) 0.8. 
D) 0.9. 
E) 1.
Customers arrive at a video rental desk at the rate of one per minute (exponential interarrival times).Each server can handle 0.4 customers per minute (exponential service times). 
A) 0.6. 
B) 0.7. 
C) 0.8. 
D) 0.9. 
E) 1.
Customers arrive at a video rental desk at the rate of one per minute (exponential interarrival times).Each server can handle 0.4 customers per minute (exponential service times).

Question 11

The cost of customer waiting is easy to estimate.

Accepted Answer

A) True 
 B)False

Question 12

Figure
Refer to the following data for a multiple-server,nonpreemptive priority queueing model:  
-What is the average time in line (in minutes)for a low priority item?

Accepted Answer

A) 2. 
B) 5. 
C) 24. 
D) 35. 
E) 54. 
A) 2. 
B) 5. 
C) 24. 
D) 35. 
E) 54.

Question 13

Multiple-server queueing systems can perform satisfactorily with somewhat higher utilization factors than can single-server queueing systems.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following will equal the average time that a customer is in the system?

Accepted Answer

A) The average number in the system divided by the arrival rate. 
B) The average number in the system multiplied by the arrival rate. 
C) The average time in line plus the average service time. 
D) b.and c.only. 
E) a.and c.only. 
A) The average number in the system divided by the arrival rate. 
B) The average number in the system multiplied by the arrival rate. 
C) The average time in line plus the average service time. 
D) b.and c.only. 
E) a.and c.only.

Question 15

A loading dock with two servers who work together as a team would be an example of a multiple-server system.

Accepted Answer

A) True 
 B)False

How many minutes does the average customer spend in the system?

A single server queueing system has an average service time of 8 minutes and an average time between arrivals of 10 minutes.The arrival rate is:

Choosing the number of servers in a system involves finding an appropriate trade-off between the cost of the servers and the amount of waiting. Multiple Choice Questions

The term queue discipline refers to:

Queueing models conventionally assume that the queue can hold an unlimited number of customers.

On average,how many parties of non-truckers are waiting to be seated?

The expected waiting time in line is equal to the expected number of customers in line divided by the arrival rate.

Figure Refer to the following data for a multiple-server,nonpreemptive priority queueing model: -What is the average time in the system (in minutes)for a high priority item?

A single-server queueing system has an average service time of 16 minutes per customer,which is exponentially distributed.The manager is thinking of converting to a system with a constant service time of 16 minutes.The arrival rate will remain the same.The effect will be to:

What is the system utilization factor if 5 servers are used?

The cost of customer waiting is easy to estimate.

Figure Refer to the following data for a multiple-server,nonpreemptive priority queueing model: -What is the average time in line (in minutes)for a low priority item?

Multiple-server queueing systems can perform satisfactorily with somewhat higher utilization factors than can single-server queueing systems.

Which of the following will equal the average time that a customer is in the system?

A loading dock with two servers who work together as a team would be an example of a multiple-server system.

Introduction

Linear Programming: Basic Concepts

Linear Programming: Formulation and Applications

The Art of Modeling With Spreadsheets

What-If Analysis for Linear Programming

Network Optimization Problems

Using Binary Integer Programming to Deal With Yes-Or-No Decisions

Nonlinear Programming

Decision Analysis

Cd Supplement - Decision Analysis

Forecasting

CD Supplement - Additional Queueing Models

Computer Simulation: Basic Concepts

CD Supplement - the Inverse Transformation Method for Generating Random Observations

Computer Simulation With Crystal Ball

CD - Solution Concepts for Linear Programming

CD - Transportation and Assignment Problems

CD - Pertcpm Models for Project Management

CD - Goal Programming

CD - Inventory Management With Known Demand

CD - Inventory Management With Uncertain Demand

Filters

Exam 12: Queueing Models

How many minutes does the average customer spend in the system?

A single server queueing system has an average service time of 8 minutes and an average time between arrivals of 10 minutes.The arrival rate is:

Choosing the number of servers in a system involves finding an appropriate trade-off between the cost of the servers and the amount of waiting. Multiple Choice Questions

The term queue discipline refers to:

Queueing models conventionally assume that the queue can hold an unlimited number of customers.

On average,how many parties of non-truckers are waiting to be seated?

The expected waiting time in line is equal to the expected number of customers in line divided by the arrival rate.

Figure Refer to the following data for a multiple-server,nonpreemptive priority queueing model: -What is the average time in the system (in minutes)for a high priority item?

A single-server queueing system has an average service time of 16 minutes per customer,which is exponentially distributed.The manager is thinking of converting to a system with a constant service time of 16 minutes.The arrival rate will remain the same.The effect will be to:

What is the system utilization factor if 5 servers are used?

The cost of customer waiting is easy to estimate.

Figure Refer to the following data for a multiple-server,nonpreemptive priority queueing model: -What is the average time in line (in minutes)for a low priority item?

Multiple-server queueing systems can perform satisfactorily with somewhat higher utilization factors than can single-server queueing systems.

Which of the following will equal the average time that a customer is in the system?

A loading dock with two servers who work together as a team would be an example of a multiple-server system.

Introduction

Linear Programming: Basic Concepts

Linear Programming: Formulation and Applications

The Art of Modeling With Spreadsheets

What-If Analysis for Linear Programming

Network Optimization Problems

Using Binary Integer Programming to Deal With Yes-Or-No Decisions

Nonlinear Programming

Decision Analysis

Cd Supplement - Decision Analysis

Forecasting

CD Supplement - Additional Queueing Models

Computer Simulation: Basic Concepts

CD Supplement - the Inverse Transformation Method for Generating Random Observations

Computer Simulation With Crystal Ball

CD - Solution Concepts for Linear Programming

CD - Transportation and Assignment Problems

CD - Pertcpm Models for Project Management

CD - Goal Programming

CD - Inventory Management With Known Demand

CD - Inventory Management With Uncertain Demand

Filters