Question 1

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 served. 
D) the reason waiting occurs in underutilized systems. 
E) an overloaded system. 
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 served. 
D) the reason waiting occurs in underutilized systems. 
E) an overloaded system.

Question 2

The most commonly used queuing models assume an arrival rate can be described by a Poisson distribution.

Accepted Answer

A) True 
 B)False

Question 3

If customers are homogeneous (similar needs),then separate waiting lines for each server are preferable.

Accepted Answer

A) True 
 B)False

Question 4

In a single-server system,the utilization is equal to the average arrival rate divided by the average service rate.

Accepted Answer

A) True 
 B)False

Question 5

A bank is designing a new branch office and needs to determine how much driveway space to allow for cars waiting for drive up teller service.The drive up service will have three tellers and a single waiting line.At another branch of the bank in a similar setting,the average service time for drive up tellers is 4 minutes per customer and average arrival rate is 36 customers per hour.It is expected that the new bank will have similar characteristics. By how much would the average time in the system increase if only two tellers were on duty?

Accepted Answer

A) approx.4 minutes 
B) approx.10 minutes 
C) approx.6 minutes 
D) The lines would become infinitely long. 
E) It is impossible to say without more information. 
A) approx.4 minutes 
B) approx.10 minutes 
C) approx.6 minutes 
D) The lines would become infinitely long. 
E) It is impossible to say without more information.

Question 6

In waiting lines,what is the term used when customers become impatient from waiting and leave the line?

Accepted Answer

A) balking 
B) premature exit 
C) failure 
D) reneging 
E) service failure 
A) balking 
B) premature exit 
C) failure 
D) reneging 
E) service failure

Question 7

In an infinite source model,the server utilization is the ratio of the average arrival rate to the service capacity.

Accepted Answer

A) True 
 B)False

Question 8

A major difference between the finite and infinite source queuing models is that the customer arrival rate in a finite situation is dependent on the length of the waiting line.

Accepted Answer

A) True 
 B)False

Question 9

All of the following are constraint management options,EXCEPT:

Accepted Answer

A) use temporary workers 
B) increase waiting space 
C) shift demand 
D) standardize the service 
E) look for a bottleneck 
A) use temporary workers 
B) increase waiting space 
C) shift demand 
D) standardize the service 
E) look for a bottleneck

Question 10

All infinite source queuing models require the server utilization to be less than 1.0.

Accepted Answer

A) True 
 B)False

Question 11

Infinite-source queuing models assume average arrival and service rates are stable.

Accepted Answer

A) True 
 B)False

Question 12

The following questions refer to this data for a multiple server,priority service queuing model:

Accepted Answer

@#IMG-DLM&_TB6896_00 What is t

Question 13

A bank is designing a new branch office and needs to determine how much driveway space to allow for cars waiting for drive up teller service.The drive up service will have three tellers and a single waiting line.At another branch of the bank in a similar setting,the average service time for drive up tellers is 4 minutes per customer and average arrival rate is 36 customers per hour.It is expected that the new bank will have similar characteristics. What is the expected average number of cars in the system?

Accepted Answer

A) approx.2.6 
B) approx.5.0 
C) approx.2.3 
D) approx.1.8 
E) approx.4.2 
A) approx.2.6 
B) approx.5.0 
C) approx.2.3 
D) approx.1.8 
E) approx.4.2

Question 14

The basic multiple-server-with-priority queuing model assumes that:

Accepted Answer

A) arrival rates are exponentially distributed. 
B) service times are Poisson distributed. 
C) items are serviced in order of arrival. 
D) items are serviced in order of priority class. 
E) service activities are pre-emptive. 
A) arrival rates are exponentially distributed. 
B) service times are Poisson distributed. 
C) items are serviced in order of arrival. 
D) items are serviced in order of priority class. 
E) service activities are pre-emptive.

Question 15

Which of the following is not generally considered as a measure of system performance in queuing analysis?

Accepted Answer

A) The average number waiting in line 
B) The average number in the system 
C) Server utilization 
D) The probability that an arriving customer will have to wait for service 
E) The average service time 
A) The average number waiting in line 
B) The average number in the system 
C) Server utilization 
D) The probability that an arriving customer will have to wait for service 
E) The average service time

Question 16

The following questions refer to this data for a multiple server,priority service queuing model:
   What is average time in line for a high priority item?

Accepted Answer

The answer of The following questions refer to this data...

Question 17

A bank is designing a new branch office and needs to determine how much driveway space to allow for cars waiting for drive up teller service.The drive up service will have three tellers and a single waiting line.At another branch of the bank in a similar setting,the average service time for drive up tellers is 4 minutes per customer and average arrival rate is 36 customers per hour.It is expected that the new bank will have similar characteristics. How many spaces should be provided to have a 96% probability of accommodating all of the waiting cars?

Accepted Answer

A) 10 
B) 12 
C) 14 
D) 16 
E) 18 
A) 10 
B) 12 
C) 14 
D) 16 
E) 18

Question 18

A bank is designing a new branch office and needs to determine how much driveway space to allow for cars waiting for drive up teller service.The drive up service will have three tellers and a single waiting line.At another branch of the bank in a similar setting,the average service time for drive up tellers is 4 minutes per customer and average arrival rate is 36 customers per hour.It is expected that the new bank will have similar characteristics. What is the average time that a customer would have to wait in line before being served?

Accepted Answer

A) 4.3 minutes 
B) 8.3 minutes 
C) 2.7 minutes 
D) 6.7 minutes 
E) 8.3 minutes. 
A) 4.3 minutes 
B) 8.3 minutes 
C) 2.7 minutes 
D) 6.7 minutes 
E) 8.3 minutes.

Question 19

Which of the following is not an assumption of an infinite source,multiple servers with priority queuing model?

Accepted Answer

A) Poisson arrival rates 
B) Poisson service rates 
C) Customers are processed in order of arrival. 
D) Customers wait in a single line. 
E) A unit with a low priority could conceivably wait a rather long time for processing. 
A) Poisson arrival rates 
B) Poisson service rates 
C) Customers are processed in order of arrival. 
D) Customers wait in a single line. 
E) A unit with a low priority could conceivably wait a rather long time for processing.

Question 20

In an infinite source model,the average time in line is equal to the average number of customers in line divided by the average arrival rate.

Accepted Answer

A) True 
 B)False

Exam 25: Waiting-Line Analysis

The term "queue discipline" refers to:

The most commonly used queuing models assume an arrival rate can be described by a Poisson distribution.

If customers are homogeneous (similar needs),then separate waiting lines for each server are preferable.

In a single-server system,the utilization is equal to the average arrival rate divided by the average service rate.

In waiting lines,what is the term used when customers become impatient from waiting and leave the line?

In an infinite source model,the server utilization is the ratio of the average arrival rate to the service capacity.

A major difference between the finite and infinite source queuing models is that the customer arrival rate in a finite situation is dependent on the length of the waiting line.

All of the following are constraint management options,EXCEPT:

All infinite source queuing models require the server utilization to be less than 1.0.

Infinite-source queuing models assume average arrival and service rates are stable.

The following questions refer to this data for a multiple server,priority service queuing model:

The basic multiple-server-with-priority queuing model assumes that:

Which of the following is not generally considered as a measure of system performance in queuing analysis?

The following questions refer to this data for a multiple server,priority service queuing model: What is average time in line for a high priority item?

Which of the following is not an assumption of an infinite source,multiple servers with priority queuing model?

In an infinite source model,the average time in line is equal to the average number of customers in line divided by the average arrival rate.

Introduction to Operations Management

Competitiveness, strategic Planning, and Productivity

Demand Forecasting

Product Design

Reliability

Strategic Capacity Planning

Decision Analysis

Process Design and Facility Layout

Linear Programming

Workjob Design

Learning Curves

Location Planning and Analysis

the Transportation Model

Management of Quality

Statistical Quality Control

Acceptance Sampling

Supply Chain Management

Inventory Management

Aggregate Operations Planning and Master Scheduling

Material Requirements Planning and Enterprise Resource Planning

Just-In-Time and Lean Production

Maintenance

Job and Staff Scheduling

Project Management

Simulation

Filters