Question 1

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)  outsourcingF) B) and E)
G) None of the above

Question 2

A system has one service facility that can service 10 customers per hour.The customers arrive at a variable rate, which averages 6 per hour.Since there is excess capacity, no waiting lines will form.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

A multiple channel system assumes that each server will have its own waiting line and line changing is not permitted.

Accepted Answer

A) True 
 B)False

Question 5

Compared to a single channel system with exponential service time, the same system with a constant service time will have an average of one-half the number of customers waiting in the system.

Accepted Answer

A) True 
 B)False

Question 6

What is the average number of high priority items waiting in line for service?

Accepted Answer

The answer of What is the average number of high...

Question 7

A ________ is one way of reducing perceived waiting time.

Accepted Answer

A)  Bonus
B)  Gatekeeper
C)  Reservation
D)  Diversion
E)  Number calling systemF) A) and C)
G) C) and D)

Question 8

Which one of the following measures of system performance is a key measure with respect to customer satisfaction?

Accepted Answer

A)  average number of customers waiting in line
B)  system utilization
C)  average number of customer in the calling population
D)  probability of a server being busy
E)  capacity costs per hourF) A) and B)
G) A) and C)

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

An alternative strategy to increase the capacity of a service system is:

Accepted Answer

A)  Reducing the number of arrivals.
B)  Increasing variability.
C)  Increasing the processing rate.
D)  Reducing the number of servers.
E)  All of the above are viable options.F) B) and D)
G) B) and C)

Question 11

A basic difference between infinite source and finite source queuing models is:

Accepted Answer

A)  the number of servers
B)  the average waiting time
C)  the arrival distribution
D)  size of potential calling population
E)  processing rateF) B) and D)
G) A) and E)

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

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 14

When the waiting cost incurred by customers likely varies, an appropriate queuing model is:

Accepted Answer

A)  single channel, single phase
B)  single channel, multiple phase
C)  multiple channel, single priority
D)  multiple channel, multiple phase
E)  multiple channel, multiple priorityF) C) and D)
G) A) and B)

Question 15

A multiple channel queuing system with a Poisson arrival rate and exponential service time has an average arrival rate of 4 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)  5F) A) and E)
G) B) and E)

Question 16

The finite-source queuing model is appropriate when the potential calling population is relatively large.

Accepted Answer

A) True 
 B)False

Question 17

What is the average machine downtime with two operators?

Accepted Answer

A)  1.71 minutes
B)  3.46 minutes
C)  6.25 minutes
D)  7.71 minutes
E)  9.46 minutesF) A) and E)
G) B) and D)

Question 18

Compared to a single channel a system with exponential service time, a single channel system with a constant service time causes a reduction of 50 percent in the average number waiting in line.

Accepted Answer

A) True 
 B)False

Question 19

If a firm has reached the point at which further reducing waiting time is not economically feasible, reducing the ______________ is sometimes attractive.

Accepted Answer

A)  channels
B)  perceived service time
C)  capacity underload
D)  perceived waiting time
E)  system underutilizationF) A) and E)
G) C) and D)

Question 20

The total cost curve:

Accepted Answer

A)  Starts at zero and increases as service capacity increases.
B)  Begins high and decreases as service capacity increases.
C)  Starts high, declines, then increases again.
D)  Remains relatively flat regardless of service capacity.
E)  Starts at zero, increases rapidly, then declines slowly back to zero.F) C) and E)
G) A) and B)

Exam 18: Management of Waiting Lines

What is the average number of high priority items waiting in line for service?

Correct AnswerverifiedShow Answer

An alternative strategy to increase the capacity of a service system is:

Correct AnswerverifiedShow Answer

When the waiting cost incurred by customers likely varies, an appropriate queuing model is:

Correct AnswerverifiedShow Answer

A system has one service facility that can service 10 customers per hour.The customers arrive at a variable rate, which averages 6 per hour.Since there is excess capacity, no waiting lines will form.

Correct AnswerverifiedShow Answer

Which one of the following measures of system performance is a key measure with respect to customer satisfaction?

Correct AnswerverifiedShow Answer

Compared to a single channel system with exponential service time, the same system with a constant service time will have an average of one-half the number of customers waiting in the system.

Correct AnswerverifiedShow Answer

Compared to a single channel a system with exponential service time, a single channel system with a constant service time causes a reduction of 50 percent in the average number waiting in line.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A basic difference between infinite source and finite source queuing models is:

Correct AnswerverifiedShow Answer

The finite-source queuing model is appropriate when the potential calling population is relatively large.

Correct AnswerverifiedShow Answer

A ________ is one way of reducing perceived waiting time.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A multiple channel queuing system with a Poisson arrival rate and exponential service time has an average arrival rate of 4 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

If a firm has reached the point at which further reducing waiting time is not economically feasible, reducing the ______________ is sometimes attractive.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is the average machine downtime with two operators?

Correct AnswerverifiedShow Answer

The total cost curve:

Correct AnswerverifiedShow Answer

A multiple channel system assumes that each server will have its own waiting line and line changing is not permitted.

Correct AnswerverifiedShow Answer

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