Question 1

A multiple-channel queuing system with a Poisson arrival rate and exponential service time has an average arrival rate of four customers per hour and an average service time of 18 minutes per customer. The minimum number of servers required to avoid an overloaded system is

Accepted Answer

A)  1.
B)  2.
C)  3.
D)  4.
E)  5.

Question 2

To reduce the average number waiting in line, it is important to increase utilization.

Accepted Answer

A) True 
 B)False

Question 3

The goal of queuing analysis is to balance the cost of providing a level of service capacity with the possible loss of business due to customers leaving the line or refusing to wait.

Accepted Answer

A) True 
 B)False

Question 4

This occurs when there is a temporary imbalance between supply and demand.

Accepted Answer

A)  reorders
B)  inventory mismanagement
C)  delays
D)  backorders
E)  waiting line

Question 5

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 number of machines down when there is one operator?

Accepted Answer

A)  1.49
B)  3.35
C)  4.40
D)  6.65
E)  8.51

Question 6

A basic difference between infinite-source and finite-source queuing models is the

Accepted Answer

A)  number of servers.
B)  average waiting time.
C)  arrival distribution.
D)  size of potential calling population.
E)  processing rate.

Question 7

For a system that has a low utilization ratio, decreasing service capacity slightly will have only negligible effect on customer waiting time.

Accepted Answer

A) True 
 B)False

Question 8

Little's law states that the average number of people in a waiting line is the average customer arrival rate multiplied by the

Accepted Answer

A)  average time in the system.
B)  average waiting time.
C)  service time minus the waiting time.
D)  average number in line.
E)  waiting time.

Exam 18: Management of Waiting Lines

To reduce the average number waiting in line, it is important to increase utilization.

Correct Answer
verified

A basic difference between infinite-source and finite-source queuing models is the

Correct Answer
verified

Little's law states that the average number of people in a waiting line is the average customer arrival rate multiplied by the

Correct Answer
verified

This occurs when there is a temporary imbalance between supply and demand.

Correct Answer
verified

For a system that has a low utilization ratio, decreasing service capacity slightly will have only negligible effect on customer waiting time.

Correct Answer
verified

The goal of queuing analysis is to balance the cost of providing a level of service capacity with the possible loss of business due to customers leaving the line or refusing to wait.

Correct Answer
verified

Correct Answer
verified

A multiple-channel queuing system with a Poisson arrival rate and exponential service time has an average arrival rate of four customers per hour and an average service time of 18 minutes per customer. The minimum number of servers required to avoid an overloaded system is

Correct Answer
verified

Exam 18: Management of Waiting Lines

To reduce the average number waiting in line, it is important to increase utilization.

Correct AnswerverifiedShow Answer

A basic difference between infinite-source and finite-source queuing models is the

Correct AnswerverifiedShow Answer

Little's law states that the average number of people in a waiting line is the average customer arrival rate multiplied by the

Correct AnswerverifiedShow Answer

This occurs when there is a temporary imbalance between supply and demand.

Correct AnswerverifiedShow Answer

For a system that has a low utilization ratio, decreasing service capacity slightly will have only negligible effect on customer waiting time.

Correct AnswerverifiedShow Answer

The goal of queuing analysis is to balance the cost of providing a level of service capacity with the possible loss of business due to customers leaving the line or refusing to wait.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A multiple-channel queuing system with a Poisson arrival rate and exponential service time has an average arrival rate of four customers per hour and an average service time of 18 minutes per customer. The minimum number of servers required to avoid an overloaded system is

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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