Question 1

A roller coaster ride in an amusement park employs which type of queuing system line structure?

Accepted Answer

Single channel, single phase queuing system line structure is used in roller coaster rides in amusement parks. In this type of system, there is only one line of customers waiting for the ride, and the customers are served one at a time.

Question 2

In modeling a simulation, random numbers from 00 to 99 are assigned with the intervals determined from frequency distributions for each behavior occurrence.Assume there are two behaviors, A and B, out of 100 tallies.On behavior A you record 45 tallies, and on behavior B you record 55 tallies.Which of the following is a correct random-number interval for behavior A?

Accepted Answer

Since there are 100 total tallies and 45 of them correspond to behavior A, the interval for behavior A should be from 00 to 44 (inclusive), since a random number of 45 or above would correspond to behavior B. Therefore, the correct answer is B) 00 to 44.

Question 3

Which of the following is not a queue discipline discussed in the textbook?

Accepted Answer

The answer of Which of the following is not a...

Question 4

A company is concerned about the number of customers who have to wait for service in its customer service department.Assume the rate at which customers are serviced is 12 per hour.Using the infinite queuing notion for the models presented in the textbook, which of the following is the mean time between arrivals?

Accepted Answer

The answer of A company is concerned about the number...

Question 5

Which of the following is not a suggestion for managing queues presented in the textbook?

Accepted Answer

Determining an acceptable waiting time for customers is more about setting internal standards and expectations rather than managing queues directly. Queue management strategies typically involve actions that directly affect how queues are formed, managed, or perceived by customers, such as training servers, segmenting customers, informing them of wait times, and encouraging visits during less busy periods.

Question 6

Which of the following is a suggestion for managing queues presented in the textbook?

Accepted Answer

The answer of Which of the following is a suggestion...

Question 7

Buying food at a large food store with multiple checkout counters features which type of queuing system line structure?

Accepted Answer

The described queuing system has multiple checkout counters, meaning there are multiple channels available for customers to use. However, all customers go through a single phase of service (paying for their food) without any intermediate waiting periods, indicating it is a single phase queuing system. Therefore, the correct option is multichannel, single phase (C).

Question 8

Which of the following is an example of a finite population in a queuing system?

Accepted Answer

A finite population refers to a system in which the number of arrivals is limited or fixed. In this case, the departmental faculty waiting in line at the copier is a finite population because it is a specific group of individuals, whereas the other options involve a larger or potentially indefinite pool of people.

Question 9

Which of the following is a suggestion for managing queues that is mentioned in the textbook?

Accepted Answer

The answer of Which of the following is a suggestion...

Question 10

Getting an autograph from a famous person might involve standing in which type of queuing line structure?

Accepted Answer

In a single channel, single phase queue, there is one line and one service point, which is typical for getting an autograph from a famous person.

Question 11

For an infinite queuing situation, if the arrival rate for loading trucks is 5 trucks per hour, what is the mean time between arrivals?

Accepted Answer

The mean time between arrivals is the reciprocal of the arrival rate. If the arrival rate is 5 trucks per hour, the mean time between arrivals is 1/5 hours, which is 0.2 hour.

Question 12

Which of the following are the three major components of a queuing system?

Accepted Answer

The three major components of a queuing system are the source population (customers), how the customer exits the system (departure process), and the servicing system (servers and their availability). The number of servers and service speed are part of the servicing system, while waiting line and queue discipline are part of the departure process. Therefore, option A, B, D, and E are not correct.

Question 13

Machine breakdown and repair in a 12-machine factory having three repair mechanics would develop which type of queuing system line structure concerning machine breakdowns?

Accepted Answer

In this scenario, there are multiple machines that can break down simultaneously and there are multiple repair mechanics available to fix them. Therefore, a multichannel queuing system with a single phase would be the best choice. This means there are multiple channels for the customers (machines) to go through when waiting for service (repair), but all channels follow the same path (single phase).

Question 14

In essence, a queuing system includes several major components.Which of the following is not one of them?

Accepted Answer

The answer of In essence, a queuing system includes several...

Question 15

Machine breakdown and repair in a 12-machine factory having one repair mechanic would develop which type of queuing system line structure concerning machine breakdowns?

Accepted Answer

The system has one repair mechanic (single channel) and each machine breakdown is a single phase process, making it a single channel, single phase system.

Question 16

Buying a ticket for a college football game where there are multiple windows at which to buy the ticket features which type of queuing system line structure?

Accepted Answer

Multichannel, single phase is the best choice because there are multiple ticket windows available (multichannel), but each customer goes through only one phase (buying a ticket). This helps to reduce waiting time and increase the efficiency of the queuing system.

Question 17

Assume the service rate for a queue in a truck-loading operation is 2 trucks per hour.Using the infinite queuing notion for the models presented in the textbook, which of the following is the average service time?

Accepted Answer

The service rate is 2 trucks per hour, so the average service time is the reciprocal of the service rate, which is 1/2 hour or 0.5 hour per truck.

Question 18

Which of the following queue disciplines is discussed in the textbook?

Accepted Answer

The answer of Which of the following queue disciplines is...

Question 19

Standing in line to buy a ticket for a movie where there are multiple windows at which to buy tickets is which type of queuing system line structure?

Accepted Answer

The scenario described fits the definition of a multichannel, single phase queuing system, as there are multiple channels (ticket windows) through which customers can be served, but they are all for the same service (ticket purchase) and there is no separate phase for each customer (such as a separate line for VIPs).

Question 20

In a college registration process, several department heads have to approve an individual student's semester course load.What is the queuing system line structure?

Accepted Answer

Single channel, multiphase means that there is only one server (the department heads) and multiple phases (the different approvals required).

Quiz 10: Waiting Line Analysis and Simulation