Question 1

Queue discipline requires a security presence to maintain order.

Accepted Answer

A) True 
 B)False

Question 2

A bank of 10 machines requires regular periodic service. Machine running time and service time are both exponential. Machines run for an average of 44 minutes between service requirements, and service time averages six minutes per machine. What is the average machine downtime with two operators?

Accepted Answer

A) .24. 
B) 3.46 minutes 
C) 6.25 minutes 
D) 7.71 minutes 
E) 9.46 minutes 
A) .24. 
B) 3.46 minutes 
C) 6.25 minutes 
D) 7.71 minutes 
E) 9.46 minutes

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

________________ is a mathematical approach to analyzing waiting lines.

Accepted Answer

A) Chaos theory 
B) Matrix theory 
C) Coding theory 
D) Distribution theory 
E) Queuing theory 
A) Chaos theory 
B) Matrix theory 
C) Coding theory 
D) Distribution theory 
E) Queuing theory

Question 5

If a manager increases system utilization (assuming no change in the customer arrival rate)what happens to the customer waiting time?

Accepted Answer

A) It increases exponentially. 
B) It increases proportionally. 
C) It decreases proportionally. 
D) It decreases exponentially. 
E) No change. 
A) It increases exponentially. 
B) It increases proportionally. 
C) It decreases proportionally. 
D) It decreases exponentially. 
E) No change.

Question 6

A restaurant at a popular Colorado casino provides priority service to player's card holders. The restaurant has 10 tables or booths where customers may be seated. The service time (time a booth or table is occupied)averages 42 minutes once a party is seated. The customer arrival rate is 8 parties per hour, with the parties being equally divided between card holders and people without player's cards. On average, how much longer do parties without player's cards spend in the system, compared to parties with the player's cards?

Accepted Answer

A) approx. 30 seconds 
B) approx. 4 minutes 
C) approx. 8 minutes 
D) approx. 32 minutes 
E) It is impossible to say without more information. 
A) approx. 30 seconds 
B) approx. 4 minutes 
C) approx. 8 minutes 
D) approx. 32 minutes 
E) It is impossible to say without more information.

Question 7

A multiple-server system has all the following assumptions except.

Accepted Answer

A) Poisson arrival rate. 
B) exponential service time. 
C) first-come, first-served processing. 
D) customers form a single waiting line. 
E) servers all work at different rates 
A) Poisson arrival rate. 
B) exponential service time. 
C) first-come, first-served processing. 
D) customers form a single waiting line. 
E) servers all work at different rates

Question 8

In which of these settings would one be least likely to encounter first-come service?

Accepted Answer

A) a fast-food restaurant 
B) a doctor's office 
C) a hotel check-in operation 
D) an emergency room 
E) a check out line 
A) a fast-food restaurant 
B) a doctor's office 
C) a hotel check-in operation 
D) an emergency room 
E) a check out line

Question 9

The goal of waiting-line management is to minimize

Accepted Answer

A) the sum of customer waiting costs and capacity costs. 
B) the sum of customer waiting time and service time. 
C) capacity costs. 
D) customer waiting time. 
E) idle servers. 
A) the sum of customer waiting costs and capacity costs. 
B) the sum of customer waiting time and service time. 
C) capacity costs. 
D) customer waiting time. 
E) idle servers.

Question 10

A single-phase queuing system in which each arriving customer will be served by a three-member crew has four crews with three members each. The number of "servers" is

Accepted Answer

A) 3. 
B) 4. 
C) 7. 
D) 12. 
E) 1. 
A) 3. 
B) 4. 
C) 7. 
D) 12. 
E) 1.

Question 11

A single-server, variable-service-time system is known as an M/D/1 system.

Accepted Answer

A) True 
 B)False

Question 12

A single-bay car wash with a Poisson arrival rate and an exponential service time has cars arriving an average of 10 minutes apart, and an average service time of four minutes. The system utilization is

Accepted Answer

A) .24. 
B) .40. 
C) .67. 
D) 2.50. 
E) 1.25. 
A) .24. 
B) .40. 
C) .67. 
D) 2.50. 
E) 1.25.

Question 13

A bank of 10 machines requires regular periodic service. Machine running time and service time are both exponential. Machines run for an average of 44 minutes between service requirements, and service time averages six minutes per machine. What is the probability that a machine will have to wait for service with two operators?

Accepted Answer

A) .654 
B) .090 
C) .346 
D) .910 
E) .016 
A) .654 
B) .090 
C) .346 
D) .910 
E) .016

Question 14

Which of the following would reduce perceived waiting times most dramatically in a doctor's office?

Accepted Answer

A) putting all clocks out of sight 
B) removing couches 
C) having the patient fill out forms 
D) implementing a "no-cell-phone" policy 
E) keeping expected waiting times from the patients 
A) putting all clocks out of sight 
B) removing couches 
C) having the patient fill out forms 
D) implementing a "no-cell-phone" policy 
E) keeping expected waiting times from the patients

Question 15

Offering an "early bird" special at a restaurant to reduce waiting times during peak hours is an example of

Accepted Answer

A) demand shifting. 
B) queuing psychology. 
C) service phasing. 
D) service standardization. 
E) outsourcing. 
A) demand shifting. 
B) queuing psychology. 
C) service phasing. 
D) service standardization. 
E) outsourcing.

Question 16

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

Accepted Answer

A) the average number waiting in line 
B) the average number in the system 
C) system utilization 
D) the cost of servers plus customer waiting cost 
E) average serving time 
A) the average number waiting in line 
B) the average number in the system 
C) system utilization 
D) the cost of servers plus customer waiting cost 
E) average serving time

Question 17

In a _______ system, customers enter the waiting line, receive service, and leave.

Accepted Answer

A) fast-track 
B) simulated 
C) queuing 
D) random 
E) non-random 
A) fast-track 
B) simulated 
C) queuing 
D) random 
E) non-random

Question 18

A ________ is one way of reducing perceived waiting time.

Accepted Answer

A) bonus 
B) gatekeeper 
C) reservation 
D) diversion 
E) number calling system 
A) bonus 
B) gatekeeper 
C) reservation 
D) diversion 
E) number calling system

Question 19

In a multichannel system with multiple waiting lines, customers shifting among the waiting lines is an example of

Accepted Answer

A) departing. 
B) utilizing. 
C) abandoning. 
D) balking. 
E) jockeying. 
A) departing. 
B) utilizing. 
C) abandoning. 
D) balking. 
E) jockeying.

Question 20

A restaurant that implements a limited menu and a "no substitutions" policy during peak dining hours is practicing _____________ with respect to waiting-line management.

Accepted Answer

A) demand shifting 
B) queuing psychology 
C) service standardization 
D) service phasing 
E) outsourcing 
A) demand shifting 
B) queuing psychology 
C) service standardization 
D) service phasing 
E) outsourcing

Queue discipline requires a security presence to maintain order.

A bank of 10 machines requires regular periodic service. Machine running time and service time are both exponential. Machines run for an average of 44 minutes between service requirements, and service time averages six minutes per machine. What is the average machine downtime with two operators?

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

________________ is a mathematical approach to analyzing waiting lines.

If a manager increases system utilization (assuming no change in the customer arrival rate)what happens to the customer waiting time?

A multiple-server system has all the following assumptions except.

In which of these settings would one be least likely to encounter first-come service?

The goal of waiting-line management is to minimize

A single-phase queuing system in which each arriving customer will be served by a three-member crew has four crews with three members each. The number of "servers" is

A single-server, variable-service-time system is known as an M/D/1 system.

A single-bay car wash with a Poisson arrival rate and an exponential service time has cars arriving an average of 10 minutes apart, and an average service time of four minutes. The system utilization is

Which of the following would reduce perceived waiting times most dramatically in a doctor's office?

Offering an "early bird" special at a restaurant to reduce waiting times during peak hours is an example of

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

In a _______ system, customers enter the waiting line, receive service, and leave.

A ________ is one way of reducing perceived waiting time.

In a multichannel system with multiple waiting lines, customers shifting among the waiting lines is an example of

A restaurant that implements a limited menu and a "no substitutions" policy during peak dining hours is practicing _____________ with respect to waiting-line management.

Introduction to Operations Management

Competitiveness, Strategy, and Productivity

Forecasting

Product and Service Design

Strategic Capacity Planning for Products and Services

Process Selection and Facility Layout

Work Design and Measurement

Location Planning and Analysis

Management of Quality

Quality Control

Aggregate Planning and Master Scheduling

Inventory Management

MRP and ERP

Jit and Lean Operations

Supply Chain Management

Scheduling

Project Management

Linear Programming

Filters

Exam 18: Management of Waiting Lines

Queue discipline requires a security presence to maintain order.

A bank of 10 machines requires regular periodic service. Machine running time and service time are both exponential. Machines run for an average of 44 minutes between service requirements, and service time averages six minutes per machine. What is the average machine downtime with two operators?

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

________________ is a mathematical approach to analyzing waiting lines.

If a manager increases system utilization (assuming no change in the customer arrival rate)what happens to the customer waiting time?

A multiple-server system has all the following assumptions except.

In which of these settings would one be least likely to encounter first-come service?

The goal of waiting-line management is to minimize

A single-phase queuing system in which each arriving customer will be served by a three-member crew has four crews with three members each. The number of "servers" is

A single-server, variable-service-time system is known as an M/D/1 system.

A single-bay car wash with a Poisson arrival rate and an exponential service time has cars arriving an average of 10 minutes apart, and an average service time of four minutes. The system utilization is

Which of the following would reduce perceived waiting times most dramatically in a doctor's office?

Offering an "early bird" special at a restaurant to reduce waiting times during peak hours is an example of

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

In a _______ system, customers enter the waiting line, receive service, and leave.

A ________ is one way of reducing perceived waiting time.

In a multichannel system with multiple waiting lines, customers shifting among the waiting lines is an example of

A restaurant that implements a limited menu and a "no substitutions" policy during peak dining hours is practicing _____________ with respect to waiting-line management.

Introduction to Operations Management

Competitiveness, Strategy, and Productivity

Forecasting

Product and Service Design

Strategic Capacity Planning for Products and Services

Process Selection and Facility Layout

Work Design and Measurement

Location Planning and Analysis

Management of Quality

Quality Control

Aggregate Planning and Master Scheduling

Inventory Management

MRP and ERP

Jit and Lean Operations

Supply Chain Management

Scheduling

Project Management

Linear Programming

Filters