Question 1

Which of the following waiting line systems best describes a drive-through car wash?

Accepted Answer

A) single-server, single-phase 
B) single-server, multi-phase 
C) multi-server, single-line, single-phase 
D) multi-server, multi-line, single-phase 
E) multi-server, multi-phase 
A) single-server, single-phase 
B) single-server, multi-phase 
C) multi-server, single-line, single-phase 
D) multi-server, multi-line, single-phase 
E) multi-server, multi-phase

Question 2

Large-scale waiting line systems discrete-event simulation is run to _____ the behavior of the system.

Accepted Answer

The answer of Large-scale waiting line systems discrete-event simulation is...

Question 3

Which functional areas of the organization are concerned with Waiting Line Models and why?

Accepted Answer

Marketing (is concerned with response ti

Question 4

Which of the following is not considered to be an element of a waiting line system?

Accepted Answer

A) the customer population source 
B) the service system 
C) the arrival and service patterns 
D) the priorities used for controlling the line 
E) the system utilization rate 
A) the customer population source 
B) the service system 
C) the arrival and service patterns 
D) the priorities used for controlling the line 
E) the system utilization rate

Question 5

Which of the following is not an assumption of the waiting line models presented in the textbook?

Accepted Answer

A) the customers are patient 
B) customers come from an infinite population 
C) customer arrival rate is described by a Poisson distribution 
D) service times are described by an exponential distribution 
E) the waiting line priority rule is longest service requirements first 
A) the customers are patient 
B) customers come from an infinite population 
C) customer arrival rate is described by a Poisson distribution 
D) service times are described by an exponential distribution 
E) the waiting line priority rule is longest service requirements first

Question 6

Waiting line models typically assume that service times are represented by the exponential distribution.

Accepted Answer

A) True 
 B)False

Question 7

Which system performance option to change a waiting line system is related to the concept of division of labor?

Accepted Answer

A) changing the priority rule 
B) changing the number of lines 
C) changing the number of phases 
D) changing customer arrival rates 
E) changing the number of service facilities 
A) changing the priority rule 
B) changing the number of lines 
C) changing the number of phases 
D) changing customer arrival rates 
E) changing the number of service facilities

Question 8

Waiting line models are important to a company because they directly affect customer service _________.

Accepted Answer

The answer of Waiting line models are important to a...

Question 9

Any time there is more customer demand for service than can be provided a _________ ____________ occurs.

Accepted Answer

The answer of Any time there is more customer demand...

Question 10

Which of the following is not considered to be a valid performance measure of a waiting line system?

Accepted Answer

A) the average number of customers waiting in line 
B) the average number of customers in the system 
C) the average amount of time customers spend waiting 
D) the system utilization rate 
E) the service pattern 
A) the average number of customers waiting in line 
B) the average number of customers in the system 
C) the average amount of time customers spend waiting 
D) the system utilization rate 
E) the service pattern

Question 11

What occurs when a customer enters a waiting line but decides to exit before being served?

Accepted Answer

A) balking 
B) walking 
C) reneging 
D) vacillating 
E) jockeying 
A) balking 
B) walking 
C) reneging 
D) vacillating 
E) jockeying

Question 12

Consider a single-line, single-server waiting line system. Suppose that customers arrive according to a Poisson distribution at an average rate of 60 per hour, and the average (exponentially distributed)service time is 45 seconds per customer. What is the average utilization of the system?

Accepted Answer

The answer of Consider a single-line, single-server waiting line system....

Question 13

Arriving customer population is considered to be ____________ if the number waiting in line does not significantly affect the rate at which the population generates new customers.

Accepted Answer

The answer of Arriving customer population is considered to be...

Question 14

Which of the following is not an assumption of the waiting line models presented in the textbook?

Accepted Answer

A) balking is not allowed 
B) reneging is allowed 
C) jockeying is not allowed 
D) customer arrival rate is described by a Poisson distribution 
E) service times are described by an exponential distribution 
A) balking is not allowed 
B) reneging is allowed 
C) jockeying is not allowed 
D) customer arrival rate is described by a Poisson distribution 
E) service times are described by an exponential distribution

Question 15

Which of the following is least likely to be considered a finite customer population?

Accepted Answer

A) subassemblies in a just-in-time manufacturing environment 
B) fast food restaurant employees waiting to use the restroom 
C) a class of 500 students who might visit their professor during office hours 
D) planes waiting to take off at an airport 
E) a class of 10 students who might visit their professor during office hours 
A) subassemblies in a just-in-time manufacturing environment 
B) fast food restaurant employees waiting to use the restroom 
C) a class of 500 students who might visit their professor during office hours 
D) planes waiting to take off at an airport 
E) a class of 10 students who might visit their professor during office hours

Question 16

A waiting line occurs whenever there is less customer demand for a service than can be provided.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is not an assumption of the waiting line models presented in the textbook?

Accepted Answer

A) the customers are patient 
B) customers come from an infinite population 
C) customer arrival rate is described by a Poisson distribution 
D) service times are described by an exponential distribution 
E) the waiting line priority rule is quickest service requirements first 
A) the customers are patient 
B) customers come from an infinite population 
C) customer arrival rate is described by a Poisson distribution 
D) service times are described by an exponential distribution 
E) the waiting line priority rule is quickest service requirements first

Question 18

Which of the following is not considered to be an element of a waiting line system?

Accepted Answer

A) the customer population source 
B) the service system 
C) the average number of customers in the system 
D) the arrival and service patterns 
E) the priorities used for controlling the line 
A) the customer population source 
B) the service system 
C) the average number of customers in the system 
D) the arrival and service patterns 
E) the priorities used for controlling the line

Question 19

Which of the following waiting line systems best describes a men's clothing store, where one of the sales clerks first assists the customer in selecting the material and style and then one of the tailors measures the customer to ensure a custom-fitted suit?

Accepted Answer

A) single-server, single-phase 
B) multi-server, multi-phase 
C) multi-server, single-line, single-phase 
D) multi-server, multi-line, single-phase 
E) single-server, multi-phase 
A) single-server, single-phase 
B) multi-server, multi-phase 
C) multi-server, single-line, single-phase 
D) multi-server, multi-line, single-phase 
E) single-server, multi-phase

Question 20

The university replication facility provides copier repair service for the university and for local businesses. Over the last year the mean arrival rate is 55 copiers a month. The repair facility uses two identical repair technicians who can repair an average of 30 copiers each month. The university is considering changing out the copiers and expects that the average arrival time will drop to 25 copiers per month. This will allow them to reassign one of the technicians to other tasks. Assume the change has occurred and the system is set up as a single channel; first come first serve, single server system. 
a)What is the utilization of the service center?
b)What is the average number of copiers waiting in the system?
c)What is the average number of copiers in the waiting line?
d) What is the average time a copier is waiting to be repaired
e) What is the average time the copier is in the waiting line?
f)What is the probability that 6 copiers will be in the system at a given time?

Accepted Answer

a) 0.833
b)5
c) 4.17

Which of the following waiting line systems best describes a drive-through car wash?

Large-scale waiting line systems discrete-event simulation is run to _____ the behavior of the system.

Which functional areas of the organization are concerned with Waiting Line Models and why?

Which of the following is not considered to be an element of a waiting line system?

Which of the following is not an assumption of the waiting line models presented in the textbook?

Waiting line models typically assume that service times are represented by the exponential distribution.

Which system performance option to change a waiting line system is related to the concept of division of labor?

Waiting line models are important to a company because they directly affect customer service _________.

Any time there is more customer demand for service than can be provided a _ ____ occurs.

Which of the following is not considered to be a valid performance measure of a waiting line system?

What occurs when a customer enters a waiting line but decides to exit before being served?

Consider a single-line, single-server waiting line system. Suppose that customers arrive according to a Poisson distribution at an average rate of 60 per hour, and the average (exponentially distributed)service time is 45 seconds per customer. What is the average utilization of the system?

Arriving customer population is considered to be ____________ if the number waiting in line does not significantly affect the rate at which the population generates new customers.

Which of the following is not an assumption of the waiting line models presented in the textbook?

Which of the following is least likely to be considered a finite customer population?

A waiting line occurs whenever there is less customer demand for a service than can be provided.

Which of the following is not an assumption of the waiting line models presented in the textbook?

Which of the following is not considered to be an element of a waiting line system?

Which of the following waiting line systems best describes a men's clothing store, where one of the sales clerks first assists the customer in selecting the material and style and then one of the tailors measures the customer to ensure a custom-fitted suit?

Introduction to Operations Management

Operations Strategy and Competitiveness

Product Design and Process Selection

E-Commerce and Supply Chain Management

Total Quality Management

Statistical Quality Control

Just-In-Time and Lean Systems

Forecasting

Capacity Planning and Facility Location

Facility Layout

Work System Design

Independent Demand Inventory Management

Aggregate Planning

Resource Planning

Scheduling

Project Management

Spreadsheet Modeling: an Introduction

Spreadsheet Modeling: an Introduction

Master Scheduling and Rough-Cut Capacity Planning

Filters

Exam 18: Waiting Line Models

Which of the following waiting line systems best describes a drive-through car wash?

Large-scale waiting line systems discrete-event simulation is run to _____ the behavior of the system.

Which functional areas of the organization are concerned with Waiting Line Models and why?

Which of the following is not considered to be an element of a waiting line system?

Which of the following is not an assumption of the waiting line models presented in the textbook?

Waiting line models typically assume that service times are represented by the exponential distribution.

Which system performance option to change a waiting line system is related to the concept of division of labor?

Waiting line models are important to a company because they directly affect customer service _________.

Any time there is more customer demand for service than can be provided a _________ ____________ occurs.

Which of the following is not considered to be a valid performance measure of a waiting line system?

What occurs when a customer enters a waiting line but decides to exit before being served?

Consider a single-line, single-server waiting line system. Suppose that customers arrive according to a Poisson distribution at an average rate of 60 per hour, and the average (exponentially distributed)service time is 45 seconds per customer. What is the average utilization of the system?

Arriving customer population is considered to be ____________ if the number waiting in line does not significantly affect the rate at which the population generates new customers.

Which of the following is not an assumption of the waiting line models presented in the textbook?

Which of the following is least likely to be considered a finite customer population?

A waiting line occurs whenever there is less customer demand for a service than can be provided.

Which of the following is not an assumption of the waiting line models presented in the textbook?

Which of the following is not considered to be an element of a waiting line system?

Which of the following waiting line systems best describes a men's clothing store, where one of the sales clerks first assists the customer in selecting the material and style and then one of the tailors measures the customer to ensure a custom-fitted suit?

Introduction to Operations Management

Operations Strategy and Competitiveness

Product Design and Process Selection

E-Commerce and Supply Chain Management

Total Quality Management

Statistical Quality Control

Just-In-Time and Lean Systems

Forecasting

Capacity Planning and Facility Location

Facility Layout

Work System Design

Independent Demand Inventory Management

Aggregate Planning

Resource Planning

Scheduling

Project Management

Spreadsheet Modeling: an Introduction

Spreadsheet Modeling: an Introduction

Master Scheduling and Rough-Cut Capacity Planning

Filters

Any time there is more customer demand for service than can be provided a _ ____ occurs.